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Commit | Line | Data |
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3c731eba AS |
1 | /* |
2 | * Testsuite for eBPF verifier | |
3 | * | |
4 | * Copyright (c) 2014 PLUMgrid, http://plumgrid.com | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or | |
7 | * modify it under the terms of version 2 of the GNU General Public | |
8 | * License as published by the Free Software Foundation. | |
9 | */ | |
5aa5bd14 | 10 | |
1da8ac7c AS |
11 | #include <asm/types.h> |
12 | #include <linux/types.h> | |
702498a1 | 13 | #include <stdint.h> |
3c731eba | 14 | #include <stdio.h> |
702498a1 | 15 | #include <stdlib.h> |
3c731eba | 16 | #include <unistd.h> |
3c731eba | 17 | #include <errno.h> |
3c731eba | 18 | #include <string.h> |
614cd3bd | 19 | #include <stddef.h> |
bf508877 | 20 | #include <stdbool.h> |
5aa5bd14 DB |
21 | #include <sched.h> |
22 | ||
d02d8986 | 23 | #include <sys/capability.h> |
bf508877 | 24 | #include <sys/resource.h> |
3c731eba | 25 | |
5aa5bd14 DB |
26 | #include <linux/unistd.h> |
27 | #include <linux/filter.h> | |
28 | #include <linux/bpf_perf_event.h> | |
29 | #include <linux/bpf.h> | |
30 | ||
2ee89fb9 MS |
31 | #include <bpf/bpf.h> |
32 | ||
02ea80b1 DB |
33 | #ifdef HAVE_GENHDR |
34 | # include "autoconf.h" | |
35 | #else | |
36 | # if defined(__i386) || defined(__x86_64) || defined(__s390x__) || defined(__aarch64__) | |
37 | # define CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS 1 | |
38 | # endif | |
39 | #endif | |
40 | ||
5aa5bd14 DB |
41 | #include "../../../include/linux/filter.h" |
42 | ||
5aa5bd14 DB |
43 | #ifndef ARRAY_SIZE |
44 | # define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0])) | |
45 | #endif | |
3c731eba | 46 | |
5aa5bd14 DB |
47 | #define MAX_INSNS 512 |
48 | #define MAX_FIXUPS 8 | |
fb30d4b7 | 49 | #define MAX_NR_MAPS 4 |
bf508877 | 50 | |
02ea80b1 | 51 | #define F_NEEDS_EFFICIENT_UNALIGNED_ACCESS (1 << 0) |
614d0d77 | 52 | #define F_LOAD_WITH_STRICT_ALIGNMENT (1 << 1) |
02ea80b1 | 53 | |
3c731eba AS |
54 | struct bpf_test { |
55 | const char *descr; | |
56 | struct bpf_insn insns[MAX_INSNS]; | |
5aa5bd14 DB |
57 | int fixup_map1[MAX_FIXUPS]; |
58 | int fixup_map2[MAX_FIXUPS]; | |
59 | int fixup_prog[MAX_FIXUPS]; | |
fb30d4b7 | 60 | int fixup_map_in_map[MAX_FIXUPS]; |
3c731eba | 61 | const char *errstr; |
bf508877 | 62 | const char *errstr_unpriv; |
3c731eba | 63 | enum { |
bf508877 | 64 | UNDEF, |
3c731eba AS |
65 | ACCEPT, |
66 | REJECT | |
bf508877 | 67 | } result, result_unpriv; |
d691f9e8 | 68 | enum bpf_prog_type prog_type; |
02ea80b1 | 69 | uint8_t flags; |
3c731eba AS |
70 | }; |
71 | ||
48461135 JB |
72 | /* Note we want this to be 64 bit aligned so that the end of our array is |
73 | * actually the end of the structure. | |
74 | */ | |
75 | #define MAX_ENTRIES 11 | |
5aa5bd14 | 76 | |
48461135 | 77 | struct test_val { |
5aa5bd14 | 78 | unsigned int index; |
48461135 JB |
79 | int foo[MAX_ENTRIES]; |
80 | }; | |
81 | ||
3c731eba AS |
82 | static struct bpf_test tests[] = { |
83 | { | |
84 | "add+sub+mul", | |
85 | .insns = { | |
86 | BPF_MOV64_IMM(BPF_REG_1, 1), | |
87 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 2), | |
88 | BPF_MOV64_IMM(BPF_REG_2, 3), | |
89 | BPF_ALU64_REG(BPF_SUB, BPF_REG_1, BPF_REG_2), | |
90 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -1), | |
91 | BPF_ALU64_IMM(BPF_MUL, BPF_REG_1, 3), | |
92 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_1), | |
93 | BPF_EXIT_INSN(), | |
94 | }, | |
95 | .result = ACCEPT, | |
96 | }, | |
97 | { | |
98 | "unreachable", | |
99 | .insns = { | |
100 | BPF_EXIT_INSN(), | |
101 | BPF_EXIT_INSN(), | |
102 | }, | |
103 | .errstr = "unreachable", | |
104 | .result = REJECT, | |
105 | }, | |
106 | { | |
107 | "unreachable2", | |
108 | .insns = { | |
109 | BPF_JMP_IMM(BPF_JA, 0, 0, 1), | |
110 | BPF_JMP_IMM(BPF_JA, 0, 0, 0), | |
111 | BPF_EXIT_INSN(), | |
112 | }, | |
113 | .errstr = "unreachable", | |
114 | .result = REJECT, | |
115 | }, | |
116 | { | |
117 | "out of range jump", | |
118 | .insns = { | |
119 | BPF_JMP_IMM(BPF_JA, 0, 0, 1), | |
120 | BPF_EXIT_INSN(), | |
121 | }, | |
122 | .errstr = "jump out of range", | |
123 | .result = REJECT, | |
124 | }, | |
125 | { | |
126 | "out of range jump2", | |
127 | .insns = { | |
128 | BPF_JMP_IMM(BPF_JA, 0, 0, -2), | |
129 | BPF_EXIT_INSN(), | |
130 | }, | |
131 | .errstr = "jump out of range", | |
132 | .result = REJECT, | |
133 | }, | |
134 | { | |
135 | "test1 ld_imm64", | |
136 | .insns = { | |
137 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 1), | |
138 | BPF_LD_IMM64(BPF_REG_0, 0), | |
139 | BPF_LD_IMM64(BPF_REG_0, 0), | |
140 | BPF_LD_IMM64(BPF_REG_0, 1), | |
141 | BPF_LD_IMM64(BPF_REG_0, 1), | |
142 | BPF_MOV64_IMM(BPF_REG_0, 2), | |
143 | BPF_EXIT_INSN(), | |
144 | }, | |
145 | .errstr = "invalid BPF_LD_IMM insn", | |
bf508877 | 146 | .errstr_unpriv = "R1 pointer comparison", |
3c731eba AS |
147 | .result = REJECT, |
148 | }, | |
149 | { | |
150 | "test2 ld_imm64", | |
151 | .insns = { | |
152 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 1), | |
153 | BPF_LD_IMM64(BPF_REG_0, 0), | |
154 | BPF_LD_IMM64(BPF_REG_0, 0), | |
155 | BPF_LD_IMM64(BPF_REG_0, 1), | |
156 | BPF_LD_IMM64(BPF_REG_0, 1), | |
157 | BPF_EXIT_INSN(), | |
158 | }, | |
159 | .errstr = "invalid BPF_LD_IMM insn", | |
bf508877 | 160 | .errstr_unpriv = "R1 pointer comparison", |
3c731eba AS |
161 | .result = REJECT, |
162 | }, | |
163 | { | |
164 | "test3 ld_imm64", | |
165 | .insns = { | |
166 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 1), | |
167 | BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, 0, 0, 0), | |
168 | BPF_LD_IMM64(BPF_REG_0, 0), | |
169 | BPF_LD_IMM64(BPF_REG_0, 0), | |
170 | BPF_LD_IMM64(BPF_REG_0, 1), | |
171 | BPF_LD_IMM64(BPF_REG_0, 1), | |
172 | BPF_EXIT_INSN(), | |
173 | }, | |
174 | .errstr = "invalid bpf_ld_imm64 insn", | |
175 | .result = REJECT, | |
176 | }, | |
177 | { | |
178 | "test4 ld_imm64", | |
179 | .insns = { | |
180 | BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, 0, 0, 0), | |
181 | BPF_EXIT_INSN(), | |
182 | }, | |
183 | .errstr = "invalid bpf_ld_imm64 insn", | |
184 | .result = REJECT, | |
185 | }, | |
186 | { | |
187 | "test5 ld_imm64", | |
188 | .insns = { | |
189 | BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, 0, 0, 0), | |
190 | }, | |
191 | .errstr = "invalid bpf_ld_imm64 insn", | |
192 | .result = REJECT, | |
193 | }, | |
728a853a DB |
194 | { |
195 | "test6 ld_imm64", | |
196 | .insns = { | |
197 | BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, 0, 0, 0), | |
198 | BPF_RAW_INSN(0, 0, 0, 0, 0), | |
199 | BPF_EXIT_INSN(), | |
200 | }, | |
201 | .result = ACCEPT, | |
202 | }, | |
203 | { | |
204 | "test7 ld_imm64", | |
205 | .insns = { | |
206 | BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, 0, 0, 1), | |
207 | BPF_RAW_INSN(0, 0, 0, 0, 1), | |
208 | BPF_EXIT_INSN(), | |
209 | }, | |
210 | .result = ACCEPT, | |
211 | }, | |
212 | { | |
213 | "test8 ld_imm64", | |
214 | .insns = { | |
215 | BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, 0, 1, 1), | |
216 | BPF_RAW_INSN(0, 0, 0, 0, 1), | |
217 | BPF_EXIT_INSN(), | |
218 | }, | |
219 | .errstr = "uses reserved fields", | |
220 | .result = REJECT, | |
221 | }, | |
222 | { | |
223 | "test9 ld_imm64", | |
224 | .insns = { | |
225 | BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, 0, 0, 1), | |
226 | BPF_RAW_INSN(0, 0, 0, 1, 1), | |
227 | BPF_EXIT_INSN(), | |
228 | }, | |
229 | .errstr = "invalid bpf_ld_imm64 insn", | |
230 | .result = REJECT, | |
231 | }, | |
232 | { | |
233 | "test10 ld_imm64", | |
234 | .insns = { | |
235 | BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, 0, 0, 1), | |
236 | BPF_RAW_INSN(0, BPF_REG_1, 0, 0, 1), | |
237 | BPF_EXIT_INSN(), | |
238 | }, | |
239 | .errstr = "invalid bpf_ld_imm64 insn", | |
240 | .result = REJECT, | |
241 | }, | |
242 | { | |
243 | "test11 ld_imm64", | |
244 | .insns = { | |
245 | BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, 0, 0, 1), | |
246 | BPF_RAW_INSN(0, 0, BPF_REG_1, 0, 1), | |
247 | BPF_EXIT_INSN(), | |
248 | }, | |
249 | .errstr = "invalid bpf_ld_imm64 insn", | |
250 | .result = REJECT, | |
251 | }, | |
252 | { | |
253 | "test12 ld_imm64", | |
254 | .insns = { | |
255 | BPF_MOV64_IMM(BPF_REG_1, 0), | |
256 | BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, BPF_REG_1, 0, 1), | |
257 | BPF_RAW_INSN(0, 0, 0, 0, 1), | |
258 | BPF_EXIT_INSN(), | |
259 | }, | |
260 | .errstr = "not pointing to valid bpf_map", | |
261 | .result = REJECT, | |
262 | }, | |
263 | { | |
264 | "test13 ld_imm64", | |
265 | .insns = { | |
266 | BPF_MOV64_IMM(BPF_REG_1, 0), | |
267 | BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, BPF_REG_1, 0, 1), | |
268 | BPF_RAW_INSN(0, 0, BPF_REG_1, 0, 1), | |
269 | BPF_EXIT_INSN(), | |
270 | }, | |
271 | .errstr = "invalid bpf_ld_imm64 insn", | |
272 | .result = REJECT, | |
273 | }, | |
3c731eba AS |
274 | { |
275 | "no bpf_exit", | |
276 | .insns = { | |
277 | BPF_ALU64_REG(BPF_MOV, BPF_REG_0, BPF_REG_2), | |
278 | }, | |
279 | .errstr = "jump out of range", | |
280 | .result = REJECT, | |
281 | }, | |
282 | { | |
283 | "loop (back-edge)", | |
284 | .insns = { | |
285 | BPF_JMP_IMM(BPF_JA, 0, 0, -1), | |
286 | BPF_EXIT_INSN(), | |
287 | }, | |
288 | .errstr = "back-edge", | |
289 | .result = REJECT, | |
290 | }, | |
291 | { | |
292 | "loop2 (back-edge)", | |
293 | .insns = { | |
294 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
295 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_0), | |
296 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_0), | |
297 | BPF_JMP_IMM(BPF_JA, 0, 0, -4), | |
298 | BPF_EXIT_INSN(), | |
299 | }, | |
300 | .errstr = "back-edge", | |
301 | .result = REJECT, | |
302 | }, | |
303 | { | |
304 | "conditional loop", | |
305 | .insns = { | |
306 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
307 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_0), | |
308 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_0), | |
309 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, -3), | |
310 | BPF_EXIT_INSN(), | |
311 | }, | |
312 | .errstr = "back-edge", | |
313 | .result = REJECT, | |
314 | }, | |
315 | { | |
316 | "read uninitialized register", | |
317 | .insns = { | |
318 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | |
319 | BPF_EXIT_INSN(), | |
320 | }, | |
321 | .errstr = "R2 !read_ok", | |
322 | .result = REJECT, | |
323 | }, | |
324 | { | |
325 | "read invalid register", | |
326 | .insns = { | |
327 | BPF_MOV64_REG(BPF_REG_0, -1), | |
328 | BPF_EXIT_INSN(), | |
329 | }, | |
330 | .errstr = "R15 is invalid", | |
331 | .result = REJECT, | |
332 | }, | |
333 | { | |
334 | "program doesn't init R0 before exit", | |
335 | .insns = { | |
336 | BPF_ALU64_REG(BPF_MOV, BPF_REG_2, BPF_REG_1), | |
337 | BPF_EXIT_INSN(), | |
338 | }, | |
339 | .errstr = "R0 !read_ok", | |
340 | .result = REJECT, | |
341 | }, | |
32bf08a6 AS |
342 | { |
343 | "program doesn't init R0 before exit in all branches", | |
344 | .insns = { | |
345 | BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 2), | |
346 | BPF_MOV64_IMM(BPF_REG_0, 1), | |
347 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 2), | |
348 | BPF_EXIT_INSN(), | |
349 | }, | |
350 | .errstr = "R0 !read_ok", | |
bf508877 | 351 | .errstr_unpriv = "R1 pointer comparison", |
32bf08a6 AS |
352 | .result = REJECT, |
353 | }, | |
3c731eba AS |
354 | { |
355 | "stack out of bounds", | |
356 | .insns = { | |
357 | BPF_ST_MEM(BPF_DW, BPF_REG_10, 8, 0), | |
358 | BPF_EXIT_INSN(), | |
359 | }, | |
360 | .errstr = "invalid stack", | |
361 | .result = REJECT, | |
362 | }, | |
363 | { | |
364 | "invalid call insn1", | |
365 | .insns = { | |
366 | BPF_RAW_INSN(BPF_JMP | BPF_CALL | BPF_X, 0, 0, 0, 0), | |
367 | BPF_EXIT_INSN(), | |
368 | }, | |
369 | .errstr = "BPF_CALL uses reserved", | |
370 | .result = REJECT, | |
371 | }, | |
372 | { | |
373 | "invalid call insn2", | |
374 | .insns = { | |
375 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 1, 0), | |
376 | BPF_EXIT_INSN(), | |
377 | }, | |
378 | .errstr = "BPF_CALL uses reserved", | |
379 | .result = REJECT, | |
380 | }, | |
381 | { | |
382 | "invalid function call", | |
383 | .insns = { | |
384 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, 1234567), | |
385 | BPF_EXIT_INSN(), | |
386 | }, | |
e00c7b21 | 387 | .errstr = "invalid func unknown#1234567", |
3c731eba AS |
388 | .result = REJECT, |
389 | }, | |
390 | { | |
391 | "uninitialized stack1", | |
392 | .insns = { | |
393 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
394 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
395 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
5aa5bd14 DB |
396 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
397 | BPF_FUNC_map_lookup_elem), | |
3c731eba AS |
398 | BPF_EXIT_INSN(), |
399 | }, | |
5aa5bd14 | 400 | .fixup_map1 = { 2 }, |
3c731eba AS |
401 | .errstr = "invalid indirect read from stack", |
402 | .result = REJECT, | |
403 | }, | |
404 | { | |
405 | "uninitialized stack2", | |
406 | .insns = { | |
407 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
408 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_2, -8), | |
409 | BPF_EXIT_INSN(), | |
410 | }, | |
411 | .errstr = "invalid read from stack", | |
412 | .result = REJECT, | |
413 | }, | |
728a853a DB |
414 | { |
415 | "invalid fp arithmetic", | |
416 | /* If this gets ever changed, make sure JITs can deal with it. */ | |
417 | .insns = { | |
418 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
419 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
420 | BPF_ALU64_IMM(BPF_SUB, BPF_REG_1, 8), | |
421 | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, 0), | |
422 | BPF_EXIT_INSN(), | |
423 | }, | |
424 | .errstr_unpriv = "R1 pointer arithmetic", | |
425 | .result_unpriv = REJECT, | |
426 | .errstr = "R1 invalid mem access", | |
427 | .result = REJECT, | |
428 | }, | |
429 | { | |
430 | "non-invalid fp arithmetic", | |
431 | .insns = { | |
432 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
433 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -8), | |
434 | BPF_EXIT_INSN(), | |
435 | }, | |
436 | .result = ACCEPT, | |
437 | }, | |
7d95b0ab DB |
438 | { |
439 | "invalid argument register", | |
440 | .insns = { | |
5aa5bd14 DB |
441 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
442 | BPF_FUNC_get_cgroup_classid), | |
443 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
444 | BPF_FUNC_get_cgroup_classid), | |
7d95b0ab DB |
445 | BPF_EXIT_INSN(), |
446 | }, | |
447 | .errstr = "R1 !read_ok", | |
448 | .result = REJECT, | |
449 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
450 | }, | |
451 | { | |
452 | "non-invalid argument register", | |
453 | .insns = { | |
454 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_1), | |
5aa5bd14 DB |
455 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
456 | BPF_FUNC_get_cgroup_classid), | |
7d95b0ab | 457 | BPF_ALU64_REG(BPF_MOV, BPF_REG_1, BPF_REG_6), |
5aa5bd14 DB |
458 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
459 | BPF_FUNC_get_cgroup_classid), | |
7d95b0ab DB |
460 | BPF_EXIT_INSN(), |
461 | }, | |
462 | .result = ACCEPT, | |
463 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
464 | }, | |
3c731eba AS |
465 | { |
466 | "check valid spill/fill", | |
467 | .insns = { | |
468 | /* spill R1(ctx) into stack */ | |
469 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_1, -8), | |
3c731eba AS |
470 | /* fill it back into R2 */ |
471 | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_10, -8), | |
3c731eba | 472 | /* should be able to access R0 = *(R2 + 8) */ |
f91fe17e DB |
473 | /* BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_2, 8), */ |
474 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | |
3c731eba AS |
475 | BPF_EXIT_INSN(), |
476 | }, | |
bf508877 | 477 | .errstr_unpriv = "R0 leaks addr", |
3c731eba | 478 | .result = ACCEPT, |
bf508877 | 479 | .result_unpriv = REJECT, |
3c731eba | 480 | }, |
3f2050e2 DB |
481 | { |
482 | "check valid spill/fill, skb mark", | |
483 | .insns = { | |
484 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_1), | |
485 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_6, -8), | |
486 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_10, -8), | |
487 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0, | |
488 | offsetof(struct __sk_buff, mark)), | |
489 | BPF_EXIT_INSN(), | |
490 | }, | |
491 | .result = ACCEPT, | |
492 | .result_unpriv = ACCEPT, | |
493 | }, | |
3c731eba AS |
494 | { |
495 | "check corrupted spill/fill", | |
496 | .insns = { | |
497 | /* spill R1(ctx) into stack */ | |
498 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_1, -8), | |
3c731eba AS |
499 | /* mess up with R1 pointer on stack */ |
500 | BPF_ST_MEM(BPF_B, BPF_REG_10, -7, 0x23), | |
3c731eba AS |
501 | /* fill back into R0 should fail */ |
502 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_10, -8), | |
3c731eba AS |
503 | BPF_EXIT_INSN(), |
504 | }, | |
bf508877 | 505 | .errstr_unpriv = "attempt to corrupt spilled", |
3c731eba AS |
506 | .errstr = "corrupted spill", |
507 | .result = REJECT, | |
508 | }, | |
509 | { | |
510 | "invalid src register in STX", | |
511 | .insns = { | |
512 | BPF_STX_MEM(BPF_B, BPF_REG_10, -1, -1), | |
513 | BPF_EXIT_INSN(), | |
514 | }, | |
515 | .errstr = "R15 is invalid", | |
516 | .result = REJECT, | |
517 | }, | |
518 | { | |
519 | "invalid dst register in STX", | |
520 | .insns = { | |
521 | BPF_STX_MEM(BPF_B, 14, BPF_REG_10, -1), | |
522 | BPF_EXIT_INSN(), | |
523 | }, | |
524 | .errstr = "R14 is invalid", | |
525 | .result = REJECT, | |
526 | }, | |
527 | { | |
528 | "invalid dst register in ST", | |
529 | .insns = { | |
530 | BPF_ST_MEM(BPF_B, 14, -1, -1), | |
531 | BPF_EXIT_INSN(), | |
532 | }, | |
533 | .errstr = "R14 is invalid", | |
534 | .result = REJECT, | |
535 | }, | |
536 | { | |
537 | "invalid src register in LDX", | |
538 | .insns = { | |
539 | BPF_LDX_MEM(BPF_B, BPF_REG_0, 12, 0), | |
540 | BPF_EXIT_INSN(), | |
541 | }, | |
542 | .errstr = "R12 is invalid", | |
543 | .result = REJECT, | |
544 | }, | |
545 | { | |
546 | "invalid dst register in LDX", | |
547 | .insns = { | |
548 | BPF_LDX_MEM(BPF_B, 11, BPF_REG_1, 0), | |
549 | BPF_EXIT_INSN(), | |
550 | }, | |
551 | .errstr = "R11 is invalid", | |
552 | .result = REJECT, | |
553 | }, | |
554 | { | |
555 | "junk insn", | |
556 | .insns = { | |
557 | BPF_RAW_INSN(0, 0, 0, 0, 0), | |
558 | BPF_EXIT_INSN(), | |
559 | }, | |
560 | .errstr = "invalid BPF_LD_IMM", | |
561 | .result = REJECT, | |
562 | }, | |
563 | { | |
564 | "junk insn2", | |
565 | .insns = { | |
566 | BPF_RAW_INSN(1, 0, 0, 0, 0), | |
567 | BPF_EXIT_INSN(), | |
568 | }, | |
569 | .errstr = "BPF_LDX uses reserved fields", | |
570 | .result = REJECT, | |
571 | }, | |
572 | { | |
573 | "junk insn3", | |
574 | .insns = { | |
575 | BPF_RAW_INSN(-1, 0, 0, 0, 0), | |
576 | BPF_EXIT_INSN(), | |
577 | }, | |
578 | .errstr = "invalid BPF_ALU opcode f0", | |
579 | .result = REJECT, | |
580 | }, | |
581 | { | |
582 | "junk insn4", | |
583 | .insns = { | |
584 | BPF_RAW_INSN(-1, -1, -1, -1, -1), | |
585 | BPF_EXIT_INSN(), | |
586 | }, | |
587 | .errstr = "invalid BPF_ALU opcode f0", | |
588 | .result = REJECT, | |
589 | }, | |
590 | { | |
591 | "junk insn5", | |
592 | .insns = { | |
593 | BPF_RAW_INSN(0x7f, -1, -1, -1, -1), | |
594 | BPF_EXIT_INSN(), | |
595 | }, | |
596 | .errstr = "BPF_ALU uses reserved fields", | |
597 | .result = REJECT, | |
598 | }, | |
599 | { | |
600 | "misaligned read from stack", | |
601 | .insns = { | |
602 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
603 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_2, -4), | |
604 | BPF_EXIT_INSN(), | |
605 | }, | |
606 | .errstr = "misaligned access", | |
607 | .result = REJECT, | |
608 | }, | |
609 | { | |
610 | "invalid map_fd for function call", | |
611 | .insns = { | |
612 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | |
613 | BPF_ALU64_REG(BPF_MOV, BPF_REG_2, BPF_REG_10), | |
614 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
615 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
5aa5bd14 DB |
616 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
617 | BPF_FUNC_map_delete_elem), | |
3c731eba AS |
618 | BPF_EXIT_INSN(), |
619 | }, | |
620 | .errstr = "fd 0 is not pointing to valid bpf_map", | |
621 | .result = REJECT, | |
622 | }, | |
623 | { | |
624 | "don't check return value before access", | |
625 | .insns = { | |
626 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | |
627 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
628 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
629 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
5aa5bd14 DB |
630 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
631 | BPF_FUNC_map_lookup_elem), | |
3c731eba AS |
632 | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 0), |
633 | BPF_EXIT_INSN(), | |
634 | }, | |
5aa5bd14 | 635 | .fixup_map1 = { 3 }, |
3c731eba AS |
636 | .errstr = "R0 invalid mem access 'map_value_or_null'", |
637 | .result = REJECT, | |
638 | }, | |
639 | { | |
640 | "access memory with incorrect alignment", | |
641 | .insns = { | |
642 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | |
643 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
644 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
645 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
5aa5bd14 DB |
646 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
647 | BPF_FUNC_map_lookup_elem), | |
3c731eba AS |
648 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1), |
649 | BPF_ST_MEM(BPF_DW, BPF_REG_0, 4, 0), | |
650 | BPF_EXIT_INSN(), | |
651 | }, | |
5aa5bd14 | 652 | .fixup_map1 = { 3 }, |
3c731eba AS |
653 | .errstr = "misaligned access", |
654 | .result = REJECT, | |
655 | }, | |
656 | { | |
657 | "sometimes access memory with incorrect alignment", | |
658 | .insns = { | |
659 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | |
660 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
661 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
662 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
5aa5bd14 DB |
663 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
664 | BPF_FUNC_map_lookup_elem), | |
3c731eba AS |
665 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 2), |
666 | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 0), | |
667 | BPF_EXIT_INSN(), | |
668 | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 1), | |
669 | BPF_EXIT_INSN(), | |
670 | }, | |
5aa5bd14 | 671 | .fixup_map1 = { 3 }, |
3c731eba | 672 | .errstr = "R0 invalid mem access", |
bf508877 | 673 | .errstr_unpriv = "R0 leaks addr", |
3c731eba AS |
674 | .result = REJECT, |
675 | }, | |
fd10c2ef AS |
676 | { |
677 | "jump test 1", | |
678 | .insns = { | |
679 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
680 | BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -8), | |
681 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 1), | |
682 | BPF_ST_MEM(BPF_DW, BPF_REG_2, -8, 0), | |
683 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 1, 1), | |
684 | BPF_ST_MEM(BPF_DW, BPF_REG_2, -16, 1), | |
685 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 2, 1), | |
686 | BPF_ST_MEM(BPF_DW, BPF_REG_2, -8, 2), | |
687 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 3, 1), | |
688 | BPF_ST_MEM(BPF_DW, BPF_REG_2, -16, 3), | |
689 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 4, 1), | |
690 | BPF_ST_MEM(BPF_DW, BPF_REG_2, -8, 4), | |
691 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 5, 1), | |
692 | BPF_ST_MEM(BPF_DW, BPF_REG_2, -32, 5), | |
693 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
694 | BPF_EXIT_INSN(), | |
695 | }, | |
bf508877 AS |
696 | .errstr_unpriv = "R1 pointer comparison", |
697 | .result_unpriv = REJECT, | |
fd10c2ef AS |
698 | .result = ACCEPT, |
699 | }, | |
700 | { | |
701 | "jump test 2", | |
702 | .insns = { | |
703 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
704 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 2), | |
705 | BPF_ST_MEM(BPF_DW, BPF_REG_2, -8, 0), | |
706 | BPF_JMP_IMM(BPF_JA, 0, 0, 14), | |
707 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 1, 2), | |
708 | BPF_ST_MEM(BPF_DW, BPF_REG_2, -16, 0), | |
709 | BPF_JMP_IMM(BPF_JA, 0, 0, 11), | |
710 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 2, 2), | |
711 | BPF_ST_MEM(BPF_DW, BPF_REG_2, -32, 0), | |
712 | BPF_JMP_IMM(BPF_JA, 0, 0, 8), | |
713 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 3, 2), | |
714 | BPF_ST_MEM(BPF_DW, BPF_REG_2, -40, 0), | |
715 | BPF_JMP_IMM(BPF_JA, 0, 0, 5), | |
716 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 4, 2), | |
717 | BPF_ST_MEM(BPF_DW, BPF_REG_2, -48, 0), | |
718 | BPF_JMP_IMM(BPF_JA, 0, 0, 2), | |
719 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 5, 1), | |
720 | BPF_ST_MEM(BPF_DW, BPF_REG_2, -56, 0), | |
721 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
722 | BPF_EXIT_INSN(), | |
723 | }, | |
bf508877 AS |
724 | .errstr_unpriv = "R1 pointer comparison", |
725 | .result_unpriv = REJECT, | |
fd10c2ef AS |
726 | .result = ACCEPT, |
727 | }, | |
728 | { | |
729 | "jump test 3", | |
730 | .insns = { | |
731 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
732 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 3), | |
733 | BPF_ST_MEM(BPF_DW, BPF_REG_2, -8, 0), | |
734 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
735 | BPF_JMP_IMM(BPF_JA, 0, 0, 19), | |
736 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 1, 3), | |
737 | BPF_ST_MEM(BPF_DW, BPF_REG_2, -16, 0), | |
738 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -16), | |
739 | BPF_JMP_IMM(BPF_JA, 0, 0, 15), | |
740 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 2, 3), | |
741 | BPF_ST_MEM(BPF_DW, BPF_REG_2, -32, 0), | |
742 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -32), | |
743 | BPF_JMP_IMM(BPF_JA, 0, 0, 11), | |
744 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 3, 3), | |
745 | BPF_ST_MEM(BPF_DW, BPF_REG_2, -40, 0), | |
746 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -40), | |
747 | BPF_JMP_IMM(BPF_JA, 0, 0, 7), | |
748 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 4, 3), | |
749 | BPF_ST_MEM(BPF_DW, BPF_REG_2, -48, 0), | |
750 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -48), | |
751 | BPF_JMP_IMM(BPF_JA, 0, 0, 3), | |
752 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 5, 0), | |
753 | BPF_ST_MEM(BPF_DW, BPF_REG_2, -56, 0), | |
754 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -56), | |
755 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
5aa5bd14 DB |
756 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
757 | BPF_FUNC_map_delete_elem), | |
fd10c2ef AS |
758 | BPF_EXIT_INSN(), |
759 | }, | |
5aa5bd14 | 760 | .fixup_map1 = { 24 }, |
bf508877 AS |
761 | .errstr_unpriv = "R1 pointer comparison", |
762 | .result_unpriv = REJECT, | |
fd10c2ef AS |
763 | .result = ACCEPT, |
764 | }, | |
765 | { | |
766 | "jump test 4", | |
767 | .insns = { | |
768 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1), | |
769 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2), | |
770 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3), | |
771 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4), | |
772 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1), | |
773 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2), | |
774 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3), | |
775 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4), | |
776 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1), | |
777 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2), | |
778 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3), | |
779 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4), | |
780 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1), | |
781 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2), | |
782 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3), | |
783 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4), | |
784 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1), | |
785 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2), | |
786 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3), | |
787 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4), | |
788 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1), | |
789 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2), | |
790 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3), | |
791 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4), | |
792 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1), | |
793 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2), | |
794 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3), | |
795 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4), | |
796 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1), | |
797 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2), | |
798 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3), | |
799 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4), | |
800 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1), | |
801 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2), | |
802 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3), | |
803 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4), | |
804 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 0), | |
805 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 0), | |
806 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 0), | |
807 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 0), | |
808 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
809 | BPF_EXIT_INSN(), | |
810 | }, | |
bf508877 AS |
811 | .errstr_unpriv = "R1 pointer comparison", |
812 | .result_unpriv = REJECT, | |
fd10c2ef AS |
813 | .result = ACCEPT, |
814 | }, | |
342ded40 AS |
815 | { |
816 | "jump test 5", | |
817 | .insns = { | |
818 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
819 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_2), | |
820 | BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 2), | |
821 | BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_3, -8), | |
822 | BPF_JMP_IMM(BPF_JA, 0, 0, 2), | |
823 | BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_2, -8), | |
824 | BPF_JMP_IMM(BPF_JA, 0, 0, 0), | |
825 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
826 | BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 2), | |
827 | BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_3, -8), | |
828 | BPF_JMP_IMM(BPF_JA, 0, 0, 2), | |
829 | BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_2, -8), | |
830 | BPF_JMP_IMM(BPF_JA, 0, 0, 0), | |
831 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
832 | BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 2), | |
833 | BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_3, -8), | |
834 | BPF_JMP_IMM(BPF_JA, 0, 0, 2), | |
835 | BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_2, -8), | |
836 | BPF_JMP_IMM(BPF_JA, 0, 0, 0), | |
837 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
838 | BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 2), | |
839 | BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_3, -8), | |
840 | BPF_JMP_IMM(BPF_JA, 0, 0, 2), | |
841 | BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_2, -8), | |
842 | BPF_JMP_IMM(BPF_JA, 0, 0, 0), | |
843 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
844 | BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 2), | |
845 | BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_3, -8), | |
846 | BPF_JMP_IMM(BPF_JA, 0, 0, 2), | |
847 | BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_2, -8), | |
848 | BPF_JMP_IMM(BPF_JA, 0, 0, 0), | |
849 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
850 | BPF_EXIT_INSN(), | |
851 | }, | |
bf508877 AS |
852 | .errstr_unpriv = "R1 pointer comparison", |
853 | .result_unpriv = REJECT, | |
342ded40 AS |
854 | .result = ACCEPT, |
855 | }, | |
614cd3bd AS |
856 | { |
857 | "access skb fields ok", | |
858 | .insns = { | |
859 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
860 | offsetof(struct __sk_buff, len)), | |
861 | BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 1), | |
862 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
863 | offsetof(struct __sk_buff, mark)), | |
864 | BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 1), | |
865 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
866 | offsetof(struct __sk_buff, pkt_type)), | |
867 | BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 1), | |
868 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
869 | offsetof(struct __sk_buff, queue_mapping)), | |
870 | BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 0), | |
c2497395 AS |
871 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, |
872 | offsetof(struct __sk_buff, protocol)), | |
873 | BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 0), | |
874 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
875 | offsetof(struct __sk_buff, vlan_present)), | |
876 | BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 0), | |
877 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
878 | offsetof(struct __sk_buff, vlan_tci)), | |
879 | BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 0), | |
b1d9fc41 DB |
880 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, |
881 | offsetof(struct __sk_buff, napi_id)), | |
882 | BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 0), | |
614cd3bd AS |
883 | BPF_EXIT_INSN(), |
884 | }, | |
885 | .result = ACCEPT, | |
886 | }, | |
887 | { | |
888 | "access skb fields bad1", | |
889 | .insns = { | |
890 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, -4), | |
891 | BPF_EXIT_INSN(), | |
892 | }, | |
893 | .errstr = "invalid bpf_context access", | |
894 | .result = REJECT, | |
895 | }, | |
896 | { | |
897 | "access skb fields bad2", | |
898 | .insns = { | |
899 | BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 9), | |
900 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | |
901 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
902 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
903 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
5aa5bd14 DB |
904 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
905 | BPF_FUNC_map_lookup_elem), | |
614cd3bd AS |
906 | BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1), |
907 | BPF_EXIT_INSN(), | |
908 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
909 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
910 | offsetof(struct __sk_buff, pkt_type)), | |
911 | BPF_EXIT_INSN(), | |
912 | }, | |
5aa5bd14 | 913 | .fixup_map1 = { 4 }, |
614cd3bd | 914 | .errstr = "different pointers", |
bf508877 | 915 | .errstr_unpriv = "R1 pointer comparison", |
614cd3bd AS |
916 | .result = REJECT, |
917 | }, | |
918 | { | |
919 | "access skb fields bad3", | |
920 | .insns = { | |
921 | BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 2), | |
922 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
923 | offsetof(struct __sk_buff, pkt_type)), | |
924 | BPF_EXIT_INSN(), | |
925 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | |
926 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
927 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
928 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
5aa5bd14 DB |
929 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
930 | BPF_FUNC_map_lookup_elem), | |
614cd3bd AS |
931 | BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1), |
932 | BPF_EXIT_INSN(), | |
933 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
934 | BPF_JMP_IMM(BPF_JA, 0, 0, -12), | |
935 | }, | |
5aa5bd14 | 936 | .fixup_map1 = { 6 }, |
614cd3bd | 937 | .errstr = "different pointers", |
bf508877 | 938 | .errstr_unpriv = "R1 pointer comparison", |
614cd3bd AS |
939 | .result = REJECT, |
940 | }, | |
725f9dcd AS |
941 | { |
942 | "access skb fields bad4", | |
943 | .insns = { | |
944 | BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 3), | |
945 | BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_1, | |
946 | offsetof(struct __sk_buff, len)), | |
947 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
948 | BPF_EXIT_INSN(), | |
949 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | |
950 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
951 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
952 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
5aa5bd14 DB |
953 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
954 | BPF_FUNC_map_lookup_elem), | |
725f9dcd AS |
955 | BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1), |
956 | BPF_EXIT_INSN(), | |
957 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
958 | BPF_JMP_IMM(BPF_JA, 0, 0, -13), | |
959 | }, | |
5aa5bd14 | 960 | .fixup_map1 = { 7 }, |
725f9dcd | 961 | .errstr = "different pointers", |
bf508877 | 962 | .errstr_unpriv = "R1 pointer comparison", |
725f9dcd AS |
963 | .result = REJECT, |
964 | }, | |
d691f9e8 AS |
965 | { |
966 | "check skb->mark is not writeable by sockets", | |
967 | .insns = { | |
968 | BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_1, | |
969 | offsetof(struct __sk_buff, mark)), | |
970 | BPF_EXIT_INSN(), | |
971 | }, | |
972 | .errstr = "invalid bpf_context access", | |
bf508877 | 973 | .errstr_unpriv = "R1 leaks addr", |
d691f9e8 AS |
974 | .result = REJECT, |
975 | }, | |
976 | { | |
977 | "check skb->tc_index is not writeable by sockets", | |
978 | .insns = { | |
979 | BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_1, | |
980 | offsetof(struct __sk_buff, tc_index)), | |
981 | BPF_EXIT_INSN(), | |
982 | }, | |
983 | .errstr = "invalid bpf_context access", | |
bf508877 | 984 | .errstr_unpriv = "R1 leaks addr", |
d691f9e8 AS |
985 | .result = REJECT, |
986 | }, | |
987 | { | |
62c7989b | 988 | "check cb access: byte", |
d691f9e8 | 989 | .insns = { |
62c7989b DB |
990 | BPF_MOV64_IMM(BPF_REG_0, 0), |
991 | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | |
992 | offsetof(struct __sk_buff, cb[0])), | |
993 | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | |
994 | offsetof(struct __sk_buff, cb[0]) + 1), | |
995 | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | |
996 | offsetof(struct __sk_buff, cb[0]) + 2), | |
997 | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | |
998 | offsetof(struct __sk_buff, cb[0]) + 3), | |
999 | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | |
1000 | offsetof(struct __sk_buff, cb[1])), | |
1001 | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | |
1002 | offsetof(struct __sk_buff, cb[1]) + 1), | |
1003 | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | |
1004 | offsetof(struct __sk_buff, cb[1]) + 2), | |
1005 | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | |
1006 | offsetof(struct __sk_buff, cb[1]) + 3), | |
1007 | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | |
1008 | offsetof(struct __sk_buff, cb[2])), | |
1009 | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | |
1010 | offsetof(struct __sk_buff, cb[2]) + 1), | |
1011 | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | |
1012 | offsetof(struct __sk_buff, cb[2]) + 2), | |
1013 | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | |
1014 | offsetof(struct __sk_buff, cb[2]) + 3), | |
1015 | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | |
1016 | offsetof(struct __sk_buff, cb[3])), | |
1017 | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | |
1018 | offsetof(struct __sk_buff, cb[3]) + 1), | |
1019 | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | |
1020 | offsetof(struct __sk_buff, cb[3]) + 2), | |
1021 | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | |
1022 | offsetof(struct __sk_buff, cb[3]) + 3), | |
1023 | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | |
1024 | offsetof(struct __sk_buff, cb[4])), | |
1025 | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | |
1026 | offsetof(struct __sk_buff, cb[4]) + 1), | |
1027 | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | |
1028 | offsetof(struct __sk_buff, cb[4]) + 2), | |
1029 | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | |
1030 | offsetof(struct __sk_buff, cb[4]) + 3), | |
1031 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | |
1032 | offsetof(struct __sk_buff, cb[0])), | |
1033 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | |
1034 | offsetof(struct __sk_buff, cb[0]) + 1), | |
1035 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | |
1036 | offsetof(struct __sk_buff, cb[0]) + 2), | |
1037 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | |
1038 | offsetof(struct __sk_buff, cb[0]) + 3), | |
1039 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | |
1040 | offsetof(struct __sk_buff, cb[1])), | |
1041 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | |
1042 | offsetof(struct __sk_buff, cb[1]) + 1), | |
1043 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | |
1044 | offsetof(struct __sk_buff, cb[1]) + 2), | |
1045 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | |
1046 | offsetof(struct __sk_buff, cb[1]) + 3), | |
1047 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | |
1048 | offsetof(struct __sk_buff, cb[2])), | |
1049 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | |
1050 | offsetof(struct __sk_buff, cb[2]) + 1), | |
1051 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | |
1052 | offsetof(struct __sk_buff, cb[2]) + 2), | |
1053 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | |
1054 | offsetof(struct __sk_buff, cb[2]) + 3), | |
1055 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | |
1056 | offsetof(struct __sk_buff, cb[3])), | |
1057 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | |
1058 | offsetof(struct __sk_buff, cb[3]) + 1), | |
1059 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | |
1060 | offsetof(struct __sk_buff, cb[3]) + 2), | |
1061 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | |
1062 | offsetof(struct __sk_buff, cb[3]) + 3), | |
1063 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | |
1064 | offsetof(struct __sk_buff, cb[4])), | |
1065 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | |
1066 | offsetof(struct __sk_buff, cb[4]) + 1), | |
1067 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | |
1068 | offsetof(struct __sk_buff, cb[4]) + 2), | |
1069 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | |
1070 | offsetof(struct __sk_buff, cb[4]) + 3), | |
1071 | BPF_EXIT_INSN(), | |
1072 | }, | |
1073 | .result = ACCEPT, | |
1074 | }, | |
1075 | { | |
1076 | "check cb access: byte, oob 1", | |
1077 | .insns = { | |
1078 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1079 | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | |
1080 | offsetof(struct __sk_buff, cb[4]) + 4), | |
1081 | BPF_EXIT_INSN(), | |
1082 | }, | |
1083 | .errstr = "invalid bpf_context access", | |
1084 | .result = REJECT, | |
1085 | }, | |
1086 | { | |
1087 | "check cb access: byte, oob 2", | |
1088 | .insns = { | |
1089 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1090 | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | |
1091 | offsetof(struct __sk_buff, cb[0]) - 1), | |
1092 | BPF_EXIT_INSN(), | |
1093 | }, | |
1094 | .errstr = "invalid bpf_context access", | |
1095 | .result = REJECT, | |
1096 | }, | |
1097 | { | |
1098 | "check cb access: byte, oob 3", | |
1099 | .insns = { | |
1100 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1101 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | |
1102 | offsetof(struct __sk_buff, cb[4]) + 4), | |
1103 | BPF_EXIT_INSN(), | |
1104 | }, | |
1105 | .errstr = "invalid bpf_context access", | |
1106 | .result = REJECT, | |
1107 | }, | |
1108 | { | |
1109 | "check cb access: byte, oob 4", | |
1110 | .insns = { | |
1111 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1112 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | |
1113 | offsetof(struct __sk_buff, cb[0]) - 1), | |
1114 | BPF_EXIT_INSN(), | |
1115 | }, | |
1116 | .errstr = "invalid bpf_context access", | |
1117 | .result = REJECT, | |
1118 | }, | |
1119 | { | |
1120 | "check cb access: byte, wrong type", | |
1121 | .insns = { | |
1122 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1123 | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | |
1124 | offsetof(struct __sk_buff, cb[0])), | |
1125 | BPF_EXIT_INSN(), | |
1126 | }, | |
1127 | .errstr = "invalid bpf_context access", | |
1128 | .result = REJECT, | |
1129 | .prog_type = BPF_PROG_TYPE_CGROUP_SOCK, | |
1130 | }, | |
1131 | { | |
1132 | "check cb access: half", | |
1133 | .insns = { | |
1134 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1135 | BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, | |
1136 | offsetof(struct __sk_buff, cb[0])), | |
1137 | BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, | |
1138 | offsetof(struct __sk_buff, cb[0]) + 2), | |
1139 | BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, | |
1140 | offsetof(struct __sk_buff, cb[1])), | |
1141 | BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, | |
1142 | offsetof(struct __sk_buff, cb[1]) + 2), | |
1143 | BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, | |
1144 | offsetof(struct __sk_buff, cb[2])), | |
1145 | BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, | |
1146 | offsetof(struct __sk_buff, cb[2]) + 2), | |
1147 | BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, | |
1148 | offsetof(struct __sk_buff, cb[3])), | |
1149 | BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, | |
1150 | offsetof(struct __sk_buff, cb[3]) + 2), | |
1151 | BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, | |
1152 | offsetof(struct __sk_buff, cb[4])), | |
1153 | BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, | |
1154 | offsetof(struct __sk_buff, cb[4]) + 2), | |
1155 | BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, | |
1156 | offsetof(struct __sk_buff, cb[0])), | |
1157 | BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, | |
1158 | offsetof(struct __sk_buff, cb[0]) + 2), | |
1159 | BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, | |
1160 | offsetof(struct __sk_buff, cb[1])), | |
1161 | BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, | |
1162 | offsetof(struct __sk_buff, cb[1]) + 2), | |
1163 | BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, | |
1164 | offsetof(struct __sk_buff, cb[2])), | |
1165 | BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, | |
1166 | offsetof(struct __sk_buff, cb[2]) + 2), | |
1167 | BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, | |
1168 | offsetof(struct __sk_buff, cb[3])), | |
1169 | BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, | |
1170 | offsetof(struct __sk_buff, cb[3]) + 2), | |
1171 | BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, | |
1172 | offsetof(struct __sk_buff, cb[4])), | |
1173 | BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, | |
1174 | offsetof(struct __sk_buff, cb[4]) + 2), | |
1175 | BPF_EXIT_INSN(), | |
1176 | }, | |
1177 | .result = ACCEPT, | |
1178 | }, | |
1179 | { | |
1180 | "check cb access: half, unaligned", | |
1181 | .insns = { | |
1182 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1183 | BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, | |
1184 | offsetof(struct __sk_buff, cb[0]) + 1), | |
1185 | BPF_EXIT_INSN(), | |
1186 | }, | |
1187 | .errstr = "misaligned access", | |
1188 | .result = REJECT, | |
1189 | }, | |
1190 | { | |
1191 | "check cb access: half, oob 1", | |
1192 | .insns = { | |
1193 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1194 | BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, | |
1195 | offsetof(struct __sk_buff, cb[4]) + 4), | |
1196 | BPF_EXIT_INSN(), | |
1197 | }, | |
1198 | .errstr = "invalid bpf_context access", | |
1199 | .result = REJECT, | |
1200 | }, | |
1201 | { | |
1202 | "check cb access: half, oob 2", | |
1203 | .insns = { | |
1204 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1205 | BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, | |
1206 | offsetof(struct __sk_buff, cb[0]) - 2), | |
1207 | BPF_EXIT_INSN(), | |
1208 | }, | |
1209 | .errstr = "invalid bpf_context access", | |
1210 | .result = REJECT, | |
1211 | }, | |
1212 | { | |
1213 | "check cb access: half, oob 3", | |
1214 | .insns = { | |
1215 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1216 | BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, | |
1217 | offsetof(struct __sk_buff, cb[4]) + 4), | |
1218 | BPF_EXIT_INSN(), | |
1219 | }, | |
1220 | .errstr = "invalid bpf_context access", | |
1221 | .result = REJECT, | |
1222 | }, | |
1223 | { | |
1224 | "check cb access: half, oob 4", | |
1225 | .insns = { | |
1226 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1227 | BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, | |
1228 | offsetof(struct __sk_buff, cb[0]) - 2), | |
1229 | BPF_EXIT_INSN(), | |
1230 | }, | |
1231 | .errstr = "invalid bpf_context access", | |
1232 | .result = REJECT, | |
1233 | }, | |
1234 | { | |
1235 | "check cb access: half, wrong type", | |
1236 | .insns = { | |
1237 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1238 | BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, | |
1239 | offsetof(struct __sk_buff, cb[0])), | |
1240 | BPF_EXIT_INSN(), | |
1241 | }, | |
1242 | .errstr = "invalid bpf_context access", | |
1243 | .result = REJECT, | |
1244 | .prog_type = BPF_PROG_TYPE_CGROUP_SOCK, | |
1245 | }, | |
1246 | { | |
1247 | "check cb access: word", | |
1248 | .insns = { | |
1249 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1250 | BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, | |
1251 | offsetof(struct __sk_buff, cb[0])), | |
1252 | BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, | |
1253 | offsetof(struct __sk_buff, cb[1])), | |
1254 | BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, | |
1255 | offsetof(struct __sk_buff, cb[2])), | |
1256 | BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, | |
1257 | offsetof(struct __sk_buff, cb[3])), | |
1258 | BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, | |
1259 | offsetof(struct __sk_buff, cb[4])), | |
1260 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
1261 | offsetof(struct __sk_buff, cb[0])), | |
1262 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
1263 | offsetof(struct __sk_buff, cb[1])), | |
1264 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
1265 | offsetof(struct __sk_buff, cb[2])), | |
1266 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
1267 | offsetof(struct __sk_buff, cb[3])), | |
1268 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
1269 | offsetof(struct __sk_buff, cb[4])), | |
1270 | BPF_EXIT_INSN(), | |
1271 | }, | |
1272 | .result = ACCEPT, | |
1273 | }, | |
1274 | { | |
1275 | "check cb access: word, unaligned 1", | |
1276 | .insns = { | |
1277 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1278 | BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, | |
1279 | offsetof(struct __sk_buff, cb[0]) + 2), | |
1280 | BPF_EXIT_INSN(), | |
1281 | }, | |
1282 | .errstr = "misaligned access", | |
1283 | .result = REJECT, | |
1284 | }, | |
1285 | { | |
1286 | "check cb access: word, unaligned 2", | |
1287 | .insns = { | |
1288 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1289 | BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, | |
1290 | offsetof(struct __sk_buff, cb[4]) + 1), | |
1291 | BPF_EXIT_INSN(), | |
1292 | }, | |
1293 | .errstr = "misaligned access", | |
1294 | .result = REJECT, | |
1295 | }, | |
1296 | { | |
1297 | "check cb access: word, unaligned 3", | |
1298 | .insns = { | |
1299 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1300 | BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, | |
1301 | offsetof(struct __sk_buff, cb[4]) + 2), | |
1302 | BPF_EXIT_INSN(), | |
1303 | }, | |
1304 | .errstr = "misaligned access", | |
1305 | .result = REJECT, | |
1306 | }, | |
1307 | { | |
1308 | "check cb access: word, unaligned 4", | |
1309 | .insns = { | |
1310 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1311 | BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, | |
1312 | offsetof(struct __sk_buff, cb[4]) + 3), | |
1313 | BPF_EXIT_INSN(), | |
1314 | }, | |
1315 | .errstr = "misaligned access", | |
1316 | .result = REJECT, | |
1317 | }, | |
1318 | { | |
1319 | "check cb access: double", | |
1320 | .insns = { | |
1321 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1322 | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, | |
1323 | offsetof(struct __sk_buff, cb[0])), | |
1324 | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, | |
1325 | offsetof(struct __sk_buff, cb[2])), | |
1326 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, | |
1327 | offsetof(struct __sk_buff, cb[0])), | |
1328 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, | |
1329 | offsetof(struct __sk_buff, cb[2])), | |
1330 | BPF_EXIT_INSN(), | |
1331 | }, | |
1332 | .result = ACCEPT, | |
1333 | }, | |
1334 | { | |
1335 | "check cb access: double, unaligned 1", | |
1336 | .insns = { | |
1337 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1338 | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, | |
1339 | offsetof(struct __sk_buff, cb[1])), | |
1340 | BPF_EXIT_INSN(), | |
1341 | }, | |
1342 | .errstr = "misaligned access", | |
1343 | .result = REJECT, | |
1344 | }, | |
1345 | { | |
1346 | "check cb access: double, unaligned 2", | |
1347 | .insns = { | |
1348 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1349 | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, | |
1350 | offsetof(struct __sk_buff, cb[3])), | |
1351 | BPF_EXIT_INSN(), | |
1352 | }, | |
1353 | .errstr = "misaligned access", | |
1354 | .result = REJECT, | |
1355 | }, | |
1356 | { | |
1357 | "check cb access: double, oob 1", | |
1358 | .insns = { | |
1359 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1360 | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, | |
1361 | offsetof(struct __sk_buff, cb[4])), | |
1362 | BPF_EXIT_INSN(), | |
1363 | }, | |
1364 | .errstr = "invalid bpf_context access", | |
1365 | .result = REJECT, | |
1366 | }, | |
1367 | { | |
1368 | "check cb access: double, oob 2", | |
1369 | .insns = { | |
1370 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1371 | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, | |
1372 | offsetof(struct __sk_buff, cb[4]) + 8), | |
1373 | BPF_EXIT_INSN(), | |
1374 | }, | |
1375 | .errstr = "invalid bpf_context access", | |
1376 | .result = REJECT, | |
1377 | }, | |
1378 | { | |
1379 | "check cb access: double, oob 3", | |
1380 | .insns = { | |
1381 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1382 | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, | |
1383 | offsetof(struct __sk_buff, cb[0]) - 8), | |
1384 | BPF_EXIT_INSN(), | |
1385 | }, | |
1386 | .errstr = "invalid bpf_context access", | |
1387 | .result = REJECT, | |
1388 | }, | |
1389 | { | |
1390 | "check cb access: double, oob 4", | |
1391 | .insns = { | |
1392 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1393 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, | |
1394 | offsetof(struct __sk_buff, cb[4])), | |
1395 | BPF_EXIT_INSN(), | |
1396 | }, | |
1397 | .errstr = "invalid bpf_context access", | |
1398 | .result = REJECT, | |
1399 | }, | |
1400 | { | |
1401 | "check cb access: double, oob 5", | |
1402 | .insns = { | |
1403 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1404 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, | |
1405 | offsetof(struct __sk_buff, cb[4]) + 8), | |
1406 | BPF_EXIT_INSN(), | |
1407 | }, | |
1408 | .errstr = "invalid bpf_context access", | |
1409 | .result = REJECT, | |
1410 | }, | |
1411 | { | |
1412 | "check cb access: double, oob 6", | |
1413 | .insns = { | |
1414 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1415 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, | |
1416 | offsetof(struct __sk_buff, cb[0]) - 8), | |
1417 | BPF_EXIT_INSN(), | |
1418 | }, | |
1419 | .errstr = "invalid bpf_context access", | |
1420 | .result = REJECT, | |
1421 | }, | |
1422 | { | |
1423 | "check cb access: double, wrong type", | |
1424 | .insns = { | |
1425 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1426 | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, | |
d691f9e8 AS |
1427 | offsetof(struct __sk_buff, cb[0])), |
1428 | BPF_EXIT_INSN(), | |
1429 | }, | |
1430 | .errstr = "invalid bpf_context access", | |
1431 | .result = REJECT, | |
62c7989b | 1432 | .prog_type = BPF_PROG_TYPE_CGROUP_SOCK, |
d691f9e8 AS |
1433 | }, |
1434 | { | |
1435 | "check out of range skb->cb access", | |
1436 | .insns = { | |
1437 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
bf508877 | 1438 | offsetof(struct __sk_buff, cb[0]) + 256), |
d691f9e8 AS |
1439 | BPF_EXIT_INSN(), |
1440 | }, | |
1441 | .errstr = "invalid bpf_context access", | |
bf508877 | 1442 | .errstr_unpriv = "", |
d691f9e8 AS |
1443 | .result = REJECT, |
1444 | .prog_type = BPF_PROG_TYPE_SCHED_ACT, | |
1445 | }, | |
1446 | { | |
1447 | "write skb fields from socket prog", | |
1448 | .insns = { | |
1449 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
1450 | offsetof(struct __sk_buff, cb[4])), | |
1451 | BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 1), | |
1452 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
1453 | offsetof(struct __sk_buff, mark)), | |
1454 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
1455 | offsetof(struct __sk_buff, tc_index)), | |
1456 | BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 1), | |
1457 | BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_1, | |
1458 | offsetof(struct __sk_buff, cb[0])), | |
1459 | BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_1, | |
1460 | offsetof(struct __sk_buff, cb[2])), | |
1461 | BPF_EXIT_INSN(), | |
1462 | }, | |
1463 | .result = ACCEPT, | |
bf508877 AS |
1464 | .errstr_unpriv = "R1 leaks addr", |
1465 | .result_unpriv = REJECT, | |
d691f9e8 AS |
1466 | }, |
1467 | { | |
1468 | "write skb fields from tc_cls_act prog", | |
1469 | .insns = { | |
1470 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
1471 | offsetof(struct __sk_buff, cb[0])), | |
1472 | BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, | |
1473 | offsetof(struct __sk_buff, mark)), | |
1474 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
1475 | offsetof(struct __sk_buff, tc_index)), | |
1476 | BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, | |
1477 | offsetof(struct __sk_buff, tc_index)), | |
1478 | BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, | |
1479 | offsetof(struct __sk_buff, cb[3])), | |
1480 | BPF_EXIT_INSN(), | |
1481 | }, | |
bf508877 AS |
1482 | .errstr_unpriv = "", |
1483 | .result_unpriv = REJECT, | |
d691f9e8 AS |
1484 | .result = ACCEPT, |
1485 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
1486 | }, | |
24b4d2ab AG |
1487 | { |
1488 | "PTR_TO_STACK store/load", | |
1489 | .insns = { | |
1490 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
1491 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -10), | |
1492 | BPF_ST_MEM(BPF_DW, BPF_REG_1, 2, 0xfaceb00c), | |
1493 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 2), | |
1494 | BPF_EXIT_INSN(), | |
1495 | }, | |
1496 | .result = ACCEPT, | |
1497 | }, | |
1498 | { | |
1499 | "PTR_TO_STACK store/load - bad alignment on off", | |
1500 | .insns = { | |
1501 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
1502 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8), | |
1503 | BPF_ST_MEM(BPF_DW, BPF_REG_1, 2, 0xfaceb00c), | |
1504 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 2), | |
1505 | BPF_EXIT_INSN(), | |
1506 | }, | |
1507 | .result = REJECT, | |
1508 | .errstr = "misaligned access off -6 size 8", | |
1509 | }, | |
1510 | { | |
1511 | "PTR_TO_STACK store/load - bad alignment on reg", | |
1512 | .insns = { | |
1513 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
1514 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -10), | |
1515 | BPF_ST_MEM(BPF_DW, BPF_REG_1, 8, 0xfaceb00c), | |
1516 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 8), | |
1517 | BPF_EXIT_INSN(), | |
1518 | }, | |
1519 | .result = REJECT, | |
1520 | .errstr = "misaligned access off -2 size 8", | |
1521 | }, | |
1522 | { | |
1523 | "PTR_TO_STACK store/load - out of bounds low", | |
1524 | .insns = { | |
1525 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
1526 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -80000), | |
1527 | BPF_ST_MEM(BPF_DW, BPF_REG_1, 8, 0xfaceb00c), | |
1528 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 8), | |
1529 | BPF_EXIT_INSN(), | |
1530 | }, | |
1531 | .result = REJECT, | |
1532 | .errstr = "invalid stack off=-79992 size=8", | |
1533 | }, | |
1534 | { | |
1535 | "PTR_TO_STACK store/load - out of bounds high", | |
1536 | .insns = { | |
1537 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
1538 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8), | |
1539 | BPF_ST_MEM(BPF_DW, BPF_REG_1, 8, 0xfaceb00c), | |
1540 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 8), | |
1541 | BPF_EXIT_INSN(), | |
1542 | }, | |
1543 | .result = REJECT, | |
1544 | .errstr = "invalid stack off=0 size=8", | |
1545 | }, | |
bf508877 AS |
1546 | { |
1547 | "unpriv: return pointer", | |
1548 | .insns = { | |
1549 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_10), | |
1550 | BPF_EXIT_INSN(), | |
1551 | }, | |
1552 | .result = ACCEPT, | |
1553 | .result_unpriv = REJECT, | |
1554 | .errstr_unpriv = "R0 leaks addr", | |
1555 | }, | |
1556 | { | |
1557 | "unpriv: add const to pointer", | |
1558 | .insns = { | |
1559 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8), | |
1560 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1561 | BPF_EXIT_INSN(), | |
1562 | }, | |
1563 | .result = ACCEPT, | |
1564 | .result_unpriv = REJECT, | |
1565 | .errstr_unpriv = "R1 pointer arithmetic", | |
1566 | }, | |
1567 | { | |
1568 | "unpriv: add pointer to pointer", | |
1569 | .insns = { | |
1570 | BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_10), | |
1571 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1572 | BPF_EXIT_INSN(), | |
1573 | }, | |
1574 | .result = ACCEPT, | |
1575 | .result_unpriv = REJECT, | |
1576 | .errstr_unpriv = "R1 pointer arithmetic", | |
1577 | }, | |
1578 | { | |
1579 | "unpriv: neg pointer", | |
1580 | .insns = { | |
1581 | BPF_ALU64_IMM(BPF_NEG, BPF_REG_1, 0), | |
1582 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1583 | BPF_EXIT_INSN(), | |
1584 | }, | |
1585 | .result = ACCEPT, | |
1586 | .result_unpriv = REJECT, | |
1587 | .errstr_unpriv = "R1 pointer arithmetic", | |
1588 | }, | |
1589 | { | |
1590 | "unpriv: cmp pointer with const", | |
1591 | .insns = { | |
1592 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 0), | |
1593 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1594 | BPF_EXIT_INSN(), | |
1595 | }, | |
1596 | .result = ACCEPT, | |
1597 | .result_unpriv = REJECT, | |
1598 | .errstr_unpriv = "R1 pointer comparison", | |
1599 | }, | |
1600 | { | |
1601 | "unpriv: cmp pointer with pointer", | |
1602 | .insns = { | |
1603 | BPF_JMP_REG(BPF_JEQ, BPF_REG_1, BPF_REG_10, 0), | |
1604 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1605 | BPF_EXIT_INSN(), | |
1606 | }, | |
1607 | .result = ACCEPT, | |
1608 | .result_unpriv = REJECT, | |
1609 | .errstr_unpriv = "R10 pointer comparison", | |
1610 | }, | |
1611 | { | |
1612 | "unpriv: check that printk is disallowed", | |
1613 | .insns = { | |
1614 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | |
1615 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
1616 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8), | |
1617 | BPF_MOV64_IMM(BPF_REG_2, 8), | |
1618 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_1), | |
5aa5bd14 DB |
1619 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
1620 | BPF_FUNC_trace_printk), | |
bf508877 AS |
1621 | BPF_MOV64_IMM(BPF_REG_0, 0), |
1622 | BPF_EXIT_INSN(), | |
1623 | }, | |
0eb6984f | 1624 | .errstr_unpriv = "unknown func bpf_trace_printk#6", |
bf508877 AS |
1625 | .result_unpriv = REJECT, |
1626 | .result = ACCEPT, | |
1627 | }, | |
1628 | { | |
1629 | "unpriv: pass pointer to helper function", | |
1630 | .insns = { | |
1631 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | |
1632 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
1633 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
1634 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
1635 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_2), | |
1636 | BPF_MOV64_REG(BPF_REG_4, BPF_REG_2), | |
5aa5bd14 DB |
1637 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
1638 | BPF_FUNC_map_update_elem), | |
bf508877 AS |
1639 | BPF_MOV64_IMM(BPF_REG_0, 0), |
1640 | BPF_EXIT_INSN(), | |
1641 | }, | |
5aa5bd14 | 1642 | .fixup_map1 = { 3 }, |
bf508877 AS |
1643 | .errstr_unpriv = "R4 leaks addr", |
1644 | .result_unpriv = REJECT, | |
1645 | .result = ACCEPT, | |
1646 | }, | |
1647 | { | |
1648 | "unpriv: indirectly pass pointer on stack to helper function", | |
1649 | .insns = { | |
1650 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_10, -8), | |
1651 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
1652 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
1653 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
5aa5bd14 DB |
1654 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
1655 | BPF_FUNC_map_lookup_elem), | |
bf508877 AS |
1656 | BPF_MOV64_IMM(BPF_REG_0, 0), |
1657 | BPF_EXIT_INSN(), | |
1658 | }, | |
5aa5bd14 | 1659 | .fixup_map1 = { 3 }, |
bf508877 AS |
1660 | .errstr = "invalid indirect read from stack off -8+0 size 8", |
1661 | .result = REJECT, | |
1662 | }, | |
1663 | { | |
1664 | "unpriv: mangle pointer on stack 1", | |
1665 | .insns = { | |
1666 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_10, -8), | |
1667 | BPF_ST_MEM(BPF_W, BPF_REG_10, -8, 0), | |
1668 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1669 | BPF_EXIT_INSN(), | |
1670 | }, | |
1671 | .errstr_unpriv = "attempt to corrupt spilled", | |
1672 | .result_unpriv = REJECT, | |
1673 | .result = ACCEPT, | |
1674 | }, | |
1675 | { | |
1676 | "unpriv: mangle pointer on stack 2", | |
1677 | .insns = { | |
1678 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_10, -8), | |
1679 | BPF_ST_MEM(BPF_B, BPF_REG_10, -1, 0), | |
1680 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1681 | BPF_EXIT_INSN(), | |
1682 | }, | |
1683 | .errstr_unpriv = "attempt to corrupt spilled", | |
1684 | .result_unpriv = REJECT, | |
1685 | .result = ACCEPT, | |
1686 | }, | |
1687 | { | |
1688 | "unpriv: read pointer from stack in small chunks", | |
1689 | .insns = { | |
1690 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_10, -8), | |
1691 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_10, -8), | |
1692 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1693 | BPF_EXIT_INSN(), | |
1694 | }, | |
1695 | .errstr = "invalid size", | |
1696 | .result = REJECT, | |
1697 | }, | |
1698 | { | |
1699 | "unpriv: write pointer into ctx", | |
1700 | .insns = { | |
1701 | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_1, 0), | |
1702 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1703 | BPF_EXIT_INSN(), | |
1704 | }, | |
1705 | .errstr_unpriv = "R1 leaks addr", | |
1706 | .result_unpriv = REJECT, | |
1707 | .errstr = "invalid bpf_context access", | |
1708 | .result = REJECT, | |
1709 | }, | |
1a776b9c DB |
1710 | { |
1711 | "unpriv: spill/fill of ctx", | |
1712 | .insns = { | |
1713 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
1714 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), | |
1715 | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0), | |
1716 | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_6, 0), | |
1717 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1718 | BPF_EXIT_INSN(), | |
1719 | }, | |
1720 | .result = ACCEPT, | |
1721 | }, | |
1722 | { | |
1723 | "unpriv: spill/fill of ctx 2", | |
1724 | .insns = { | |
1725 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
1726 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), | |
1727 | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0), | |
1728 | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_6, 0), | |
5aa5bd14 DB |
1729 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
1730 | BPF_FUNC_get_hash_recalc), | |
1a776b9c DB |
1731 | BPF_EXIT_INSN(), |
1732 | }, | |
1733 | .result = ACCEPT, | |
1734 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
1735 | }, | |
1736 | { | |
1737 | "unpriv: spill/fill of ctx 3", | |
1738 | .insns = { | |
1739 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
1740 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), | |
1741 | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0), | |
1742 | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_10, 0), | |
1743 | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_6, 0), | |
5aa5bd14 DB |
1744 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
1745 | BPF_FUNC_get_hash_recalc), | |
1a776b9c DB |
1746 | BPF_EXIT_INSN(), |
1747 | }, | |
1748 | .result = REJECT, | |
1749 | .errstr = "R1 type=fp expected=ctx", | |
1750 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
1751 | }, | |
1752 | { | |
1753 | "unpriv: spill/fill of ctx 4", | |
1754 | .insns = { | |
1755 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
1756 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), | |
1757 | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0), | |
1758 | BPF_MOV64_IMM(BPF_REG_0, 1), | |
5aa5bd14 DB |
1759 | BPF_RAW_INSN(BPF_STX | BPF_XADD | BPF_DW, BPF_REG_10, |
1760 | BPF_REG_0, -8, 0), | |
1a776b9c | 1761 | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_6, 0), |
5aa5bd14 DB |
1762 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
1763 | BPF_FUNC_get_hash_recalc), | |
1a776b9c DB |
1764 | BPF_EXIT_INSN(), |
1765 | }, | |
1766 | .result = REJECT, | |
1767 | .errstr = "R1 type=inv expected=ctx", | |
1768 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
1769 | }, | |
1770 | { | |
1771 | "unpriv: spill/fill of different pointers stx", | |
1772 | .insns = { | |
1773 | BPF_MOV64_IMM(BPF_REG_3, 42), | |
1774 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
1775 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), | |
1776 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 3), | |
1777 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
1778 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -16), | |
1779 | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_2, 0), | |
1780 | BPF_JMP_IMM(BPF_JNE, BPF_REG_1, 0, 1), | |
1781 | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0), | |
1782 | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_6, 0), | |
1783 | BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_3, | |
1784 | offsetof(struct __sk_buff, mark)), | |
1785 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1786 | BPF_EXIT_INSN(), | |
1787 | }, | |
1788 | .result = REJECT, | |
1789 | .errstr = "same insn cannot be used with different pointers", | |
1790 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
1791 | }, | |
1792 | { | |
1793 | "unpriv: spill/fill of different pointers ldx", | |
1794 | .insns = { | |
1795 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
1796 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), | |
1797 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 3), | |
1798 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
1799 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, | |
1800 | -(__s32)offsetof(struct bpf_perf_event_data, | |
1801 | sample_period) - 8), | |
1802 | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_2, 0), | |
1803 | BPF_JMP_IMM(BPF_JNE, BPF_REG_1, 0, 1), | |
1804 | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0), | |
1805 | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_6, 0), | |
1806 | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_1, | |
1807 | offsetof(struct bpf_perf_event_data, | |
1808 | sample_period)), | |
1809 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1810 | BPF_EXIT_INSN(), | |
1811 | }, | |
1812 | .result = REJECT, | |
1813 | .errstr = "same insn cannot be used with different pointers", | |
1814 | .prog_type = BPF_PROG_TYPE_PERF_EVENT, | |
1815 | }, | |
bf508877 AS |
1816 | { |
1817 | "unpriv: write pointer into map elem value", | |
1818 | .insns = { | |
1819 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | |
1820 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
1821 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
1822 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
5aa5bd14 DB |
1823 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
1824 | BPF_FUNC_map_lookup_elem), | |
bf508877 AS |
1825 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1), |
1826 | BPF_STX_MEM(BPF_DW, BPF_REG_0, BPF_REG_0, 0), | |
1827 | BPF_EXIT_INSN(), | |
1828 | }, | |
5aa5bd14 | 1829 | .fixup_map1 = { 3 }, |
bf508877 AS |
1830 | .errstr_unpriv = "R0 leaks addr", |
1831 | .result_unpriv = REJECT, | |
1832 | .result = ACCEPT, | |
1833 | }, | |
1834 | { | |
1835 | "unpriv: partial copy of pointer", | |
1836 | .insns = { | |
1837 | BPF_MOV32_REG(BPF_REG_1, BPF_REG_10), | |
1838 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1839 | BPF_EXIT_INSN(), | |
1840 | }, | |
1841 | .errstr_unpriv = "R10 partial copy", | |
1842 | .result_unpriv = REJECT, | |
1843 | .result = ACCEPT, | |
1844 | }, | |
1845 | { | |
1846 | "unpriv: pass pointer to tail_call", | |
1847 | .insns = { | |
1848 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_1), | |
1849 | BPF_LD_MAP_FD(BPF_REG_2, 0), | |
5aa5bd14 DB |
1850 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
1851 | BPF_FUNC_tail_call), | |
bf508877 AS |
1852 | BPF_MOV64_IMM(BPF_REG_0, 0), |
1853 | BPF_EXIT_INSN(), | |
1854 | }, | |
5aa5bd14 | 1855 | .fixup_prog = { 1 }, |
bf508877 AS |
1856 | .errstr_unpriv = "R3 leaks addr into helper", |
1857 | .result_unpriv = REJECT, | |
1858 | .result = ACCEPT, | |
1859 | }, | |
1860 | { | |
1861 | "unpriv: cmp map pointer with zero", | |
1862 | .insns = { | |
1863 | BPF_MOV64_IMM(BPF_REG_1, 0), | |
1864 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
1865 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 0), | |
1866 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1867 | BPF_EXIT_INSN(), | |
1868 | }, | |
5aa5bd14 | 1869 | .fixup_map1 = { 1 }, |
bf508877 AS |
1870 | .errstr_unpriv = "R1 pointer comparison", |
1871 | .result_unpriv = REJECT, | |
1872 | .result = ACCEPT, | |
1873 | }, | |
1874 | { | |
1875 | "unpriv: write into frame pointer", | |
1876 | .insns = { | |
1877 | BPF_MOV64_REG(BPF_REG_10, BPF_REG_1), | |
1878 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1879 | BPF_EXIT_INSN(), | |
1880 | }, | |
1881 | .errstr = "frame pointer is read only", | |
1882 | .result = REJECT, | |
1883 | }, | |
1a776b9c DB |
1884 | { |
1885 | "unpriv: spill/fill frame pointer", | |
1886 | .insns = { | |
1887 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
1888 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), | |
1889 | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_10, 0), | |
1890 | BPF_LDX_MEM(BPF_DW, BPF_REG_10, BPF_REG_6, 0), | |
1891 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1892 | BPF_EXIT_INSN(), | |
1893 | }, | |
1894 | .errstr = "frame pointer is read only", | |
1895 | .result = REJECT, | |
1896 | }, | |
bf508877 AS |
1897 | { |
1898 | "unpriv: cmp of frame pointer", | |
1899 | .insns = { | |
1900 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_10, 0, 0), | |
1901 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1902 | BPF_EXIT_INSN(), | |
1903 | }, | |
1904 | .errstr_unpriv = "R10 pointer comparison", | |
1905 | .result_unpriv = REJECT, | |
1906 | .result = ACCEPT, | |
1907 | }, | |
728a853a DB |
1908 | { |
1909 | "unpriv: adding of fp", | |
1910 | .insns = { | |
1911 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1912 | BPF_MOV64_IMM(BPF_REG_1, 0), | |
1913 | BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_10), | |
1914 | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, -8), | |
1915 | BPF_EXIT_INSN(), | |
1916 | }, | |
1917 | .errstr_unpriv = "pointer arithmetic prohibited", | |
1918 | .result_unpriv = REJECT, | |
1919 | .errstr = "R1 invalid mem access", | |
1920 | .result = REJECT, | |
1921 | }, | |
bf508877 AS |
1922 | { |
1923 | "unpriv: cmp of stack pointer", | |
1924 | .insns = { | |
1925 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
1926 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
1927 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_2, 0, 0), | |
1928 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1929 | BPF_EXIT_INSN(), | |
1930 | }, | |
1931 | .errstr_unpriv = "R2 pointer comparison", | |
1932 | .result_unpriv = REJECT, | |
1933 | .result = ACCEPT, | |
1934 | }, | |
1935 | { | |
332270fd | 1936 | "stack pointer arithmetic", |
bf508877 | 1937 | .insns = { |
332270fd YS |
1938 | BPF_MOV64_IMM(BPF_REG_1, 4), |
1939 | BPF_JMP_IMM(BPF_JA, 0, 0, 0), | |
1940 | BPF_MOV64_REG(BPF_REG_7, BPF_REG_10), | |
1941 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_7, -10), | |
1942 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_7, -10), | |
1943 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_7), | |
1944 | BPF_ALU64_REG(BPF_ADD, BPF_REG_2, BPF_REG_1), | |
1945 | BPF_ST_MEM(0, BPF_REG_2, 4, 0), | |
1946 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_7), | |
1947 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 8), | |
1948 | BPF_ST_MEM(0, BPF_REG_2, 4, 0), | |
bf508877 AS |
1949 | BPF_MOV64_IMM(BPF_REG_0, 0), |
1950 | BPF_EXIT_INSN(), | |
1951 | }, | |
bf508877 AS |
1952 | .result = ACCEPT, |
1953 | }, | |
3f2050e2 DB |
1954 | { |
1955 | "raw_stack: no skb_load_bytes", | |
1956 | .insns = { | |
1957 | BPF_MOV64_IMM(BPF_REG_2, 4), | |
1958 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
1959 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), | |
1960 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | |
1961 | BPF_MOV64_IMM(BPF_REG_4, 8), | |
1962 | /* Call to skb_load_bytes() omitted. */ | |
1963 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), | |
1964 | BPF_EXIT_INSN(), | |
1965 | }, | |
1966 | .result = REJECT, | |
1967 | .errstr = "invalid read from stack off -8+0 size 8", | |
1968 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
1969 | }, | |
7d95b0ab DB |
1970 | { |
1971 | "raw_stack: skb_load_bytes, negative len", | |
1972 | .insns = { | |
1973 | BPF_MOV64_IMM(BPF_REG_2, 4), | |
1974 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
1975 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), | |
1976 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | |
1977 | BPF_MOV64_IMM(BPF_REG_4, -8), | |
5aa5bd14 DB |
1978 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
1979 | BPF_FUNC_skb_load_bytes), | |
7d95b0ab DB |
1980 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), |
1981 | BPF_EXIT_INSN(), | |
1982 | }, | |
1983 | .result = REJECT, | |
1984 | .errstr = "invalid stack type R3", | |
1985 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
1986 | }, | |
1987 | { | |
1988 | "raw_stack: skb_load_bytes, negative len 2", | |
1989 | .insns = { | |
1990 | BPF_MOV64_IMM(BPF_REG_2, 4), | |
1991 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
1992 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), | |
1993 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | |
1994 | BPF_MOV64_IMM(BPF_REG_4, ~0), | |
5aa5bd14 DB |
1995 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
1996 | BPF_FUNC_skb_load_bytes), | |
7d95b0ab DB |
1997 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), |
1998 | BPF_EXIT_INSN(), | |
1999 | }, | |
2000 | .result = REJECT, | |
2001 | .errstr = "invalid stack type R3", | |
2002 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2003 | }, | |
2004 | { | |
2005 | "raw_stack: skb_load_bytes, zero len", | |
2006 | .insns = { | |
2007 | BPF_MOV64_IMM(BPF_REG_2, 4), | |
2008 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
2009 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), | |
2010 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | |
2011 | BPF_MOV64_IMM(BPF_REG_4, 0), | |
5aa5bd14 DB |
2012 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
2013 | BPF_FUNC_skb_load_bytes), | |
7d95b0ab DB |
2014 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), |
2015 | BPF_EXIT_INSN(), | |
2016 | }, | |
2017 | .result = REJECT, | |
2018 | .errstr = "invalid stack type R3", | |
2019 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2020 | }, | |
3f2050e2 DB |
2021 | { |
2022 | "raw_stack: skb_load_bytes, no init", | |
2023 | .insns = { | |
2024 | BPF_MOV64_IMM(BPF_REG_2, 4), | |
2025 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
2026 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), | |
2027 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | |
2028 | BPF_MOV64_IMM(BPF_REG_4, 8), | |
5aa5bd14 DB |
2029 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
2030 | BPF_FUNC_skb_load_bytes), | |
3f2050e2 DB |
2031 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), |
2032 | BPF_EXIT_INSN(), | |
2033 | }, | |
2034 | .result = ACCEPT, | |
2035 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2036 | }, | |
2037 | { | |
2038 | "raw_stack: skb_load_bytes, init", | |
2039 | .insns = { | |
2040 | BPF_MOV64_IMM(BPF_REG_2, 4), | |
2041 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
2042 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), | |
2043 | BPF_ST_MEM(BPF_DW, BPF_REG_6, 0, 0xcafe), | |
2044 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | |
2045 | BPF_MOV64_IMM(BPF_REG_4, 8), | |
5aa5bd14 DB |
2046 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
2047 | BPF_FUNC_skb_load_bytes), | |
3f2050e2 DB |
2048 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), |
2049 | BPF_EXIT_INSN(), | |
2050 | }, | |
2051 | .result = ACCEPT, | |
2052 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2053 | }, | |
2054 | { | |
2055 | "raw_stack: skb_load_bytes, spilled regs around bounds", | |
2056 | .insns = { | |
2057 | BPF_MOV64_IMM(BPF_REG_2, 4), | |
2058 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
2059 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -16), | |
5aa5bd14 DB |
2060 | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, -8), |
2061 | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 8), | |
3f2050e2 DB |
2062 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), |
2063 | BPF_MOV64_IMM(BPF_REG_4, 8), | |
5aa5bd14 DB |
2064 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
2065 | BPF_FUNC_skb_load_bytes), | |
2066 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, -8), | |
2067 | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_6, 8), | |
3f2050e2 DB |
2068 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0, |
2069 | offsetof(struct __sk_buff, mark)), | |
2070 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_2, | |
2071 | offsetof(struct __sk_buff, priority)), | |
2072 | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_2), | |
2073 | BPF_EXIT_INSN(), | |
2074 | }, | |
2075 | .result = ACCEPT, | |
2076 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2077 | }, | |
2078 | { | |
2079 | "raw_stack: skb_load_bytes, spilled regs corruption", | |
2080 | .insns = { | |
2081 | BPF_MOV64_IMM(BPF_REG_2, 4), | |
2082 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
2083 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), | |
5aa5bd14 | 2084 | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0), |
3f2050e2 DB |
2085 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), |
2086 | BPF_MOV64_IMM(BPF_REG_4, 8), | |
5aa5bd14 DB |
2087 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
2088 | BPF_FUNC_skb_load_bytes), | |
2089 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), | |
3f2050e2 DB |
2090 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0, |
2091 | offsetof(struct __sk_buff, mark)), | |
2092 | BPF_EXIT_INSN(), | |
2093 | }, | |
2094 | .result = REJECT, | |
2095 | .errstr = "R0 invalid mem access 'inv'", | |
2096 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2097 | }, | |
2098 | { | |
2099 | "raw_stack: skb_load_bytes, spilled regs corruption 2", | |
2100 | .insns = { | |
2101 | BPF_MOV64_IMM(BPF_REG_2, 4), | |
2102 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
2103 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -16), | |
5aa5bd14 DB |
2104 | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, -8), |
2105 | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0), | |
2106 | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 8), | |
3f2050e2 DB |
2107 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), |
2108 | BPF_MOV64_IMM(BPF_REG_4, 8), | |
5aa5bd14 DB |
2109 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
2110 | BPF_FUNC_skb_load_bytes), | |
2111 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, -8), | |
2112 | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_6, 8), | |
2113 | BPF_LDX_MEM(BPF_DW, BPF_REG_3, BPF_REG_6, 0), | |
3f2050e2 DB |
2114 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0, |
2115 | offsetof(struct __sk_buff, mark)), | |
2116 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_2, | |
2117 | offsetof(struct __sk_buff, priority)), | |
2118 | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_2), | |
2119 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_3, | |
2120 | offsetof(struct __sk_buff, pkt_type)), | |
2121 | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_3), | |
2122 | BPF_EXIT_INSN(), | |
2123 | }, | |
2124 | .result = REJECT, | |
2125 | .errstr = "R3 invalid mem access 'inv'", | |
2126 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2127 | }, | |
2128 | { | |
2129 | "raw_stack: skb_load_bytes, spilled regs + data", | |
2130 | .insns = { | |
2131 | BPF_MOV64_IMM(BPF_REG_2, 4), | |
2132 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
2133 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -16), | |
5aa5bd14 DB |
2134 | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, -8), |
2135 | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0), | |
2136 | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 8), | |
3f2050e2 DB |
2137 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), |
2138 | BPF_MOV64_IMM(BPF_REG_4, 8), | |
5aa5bd14 DB |
2139 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
2140 | BPF_FUNC_skb_load_bytes), | |
2141 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, -8), | |
2142 | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_6, 8), | |
2143 | BPF_LDX_MEM(BPF_DW, BPF_REG_3, BPF_REG_6, 0), | |
3f2050e2 DB |
2144 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0, |
2145 | offsetof(struct __sk_buff, mark)), | |
2146 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_2, | |
2147 | offsetof(struct __sk_buff, priority)), | |
2148 | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_2), | |
2149 | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_3), | |
2150 | BPF_EXIT_INSN(), | |
2151 | }, | |
2152 | .result = ACCEPT, | |
2153 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2154 | }, | |
2155 | { | |
2156 | "raw_stack: skb_load_bytes, invalid access 1", | |
2157 | .insns = { | |
2158 | BPF_MOV64_IMM(BPF_REG_2, 4), | |
2159 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
2160 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -513), | |
2161 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | |
2162 | BPF_MOV64_IMM(BPF_REG_4, 8), | |
5aa5bd14 DB |
2163 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
2164 | BPF_FUNC_skb_load_bytes), | |
3f2050e2 DB |
2165 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), |
2166 | BPF_EXIT_INSN(), | |
2167 | }, | |
2168 | .result = REJECT, | |
2169 | .errstr = "invalid stack type R3 off=-513 access_size=8", | |
2170 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2171 | }, | |
2172 | { | |
2173 | "raw_stack: skb_load_bytes, invalid access 2", | |
2174 | .insns = { | |
2175 | BPF_MOV64_IMM(BPF_REG_2, 4), | |
2176 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
2177 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -1), | |
2178 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | |
2179 | BPF_MOV64_IMM(BPF_REG_4, 8), | |
5aa5bd14 DB |
2180 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
2181 | BPF_FUNC_skb_load_bytes), | |
3f2050e2 DB |
2182 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), |
2183 | BPF_EXIT_INSN(), | |
2184 | }, | |
2185 | .result = REJECT, | |
2186 | .errstr = "invalid stack type R3 off=-1 access_size=8", | |
2187 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2188 | }, | |
2189 | { | |
2190 | "raw_stack: skb_load_bytes, invalid access 3", | |
2191 | .insns = { | |
2192 | BPF_MOV64_IMM(BPF_REG_2, 4), | |
2193 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
2194 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 0xffffffff), | |
2195 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | |
2196 | BPF_MOV64_IMM(BPF_REG_4, 0xffffffff), | |
5aa5bd14 DB |
2197 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
2198 | BPF_FUNC_skb_load_bytes), | |
3f2050e2 DB |
2199 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), |
2200 | BPF_EXIT_INSN(), | |
2201 | }, | |
2202 | .result = REJECT, | |
2203 | .errstr = "invalid stack type R3 off=-1 access_size=-1", | |
2204 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2205 | }, | |
2206 | { | |
2207 | "raw_stack: skb_load_bytes, invalid access 4", | |
2208 | .insns = { | |
2209 | BPF_MOV64_IMM(BPF_REG_2, 4), | |
2210 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
2211 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -1), | |
2212 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | |
2213 | BPF_MOV64_IMM(BPF_REG_4, 0x7fffffff), | |
5aa5bd14 DB |
2214 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
2215 | BPF_FUNC_skb_load_bytes), | |
3f2050e2 DB |
2216 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), |
2217 | BPF_EXIT_INSN(), | |
2218 | }, | |
2219 | .result = REJECT, | |
2220 | .errstr = "invalid stack type R3 off=-1 access_size=2147483647", | |
2221 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2222 | }, | |
2223 | { | |
2224 | "raw_stack: skb_load_bytes, invalid access 5", | |
2225 | .insns = { | |
2226 | BPF_MOV64_IMM(BPF_REG_2, 4), | |
2227 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
2228 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -512), | |
2229 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | |
2230 | BPF_MOV64_IMM(BPF_REG_4, 0x7fffffff), | |
5aa5bd14 DB |
2231 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
2232 | BPF_FUNC_skb_load_bytes), | |
3f2050e2 DB |
2233 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), |
2234 | BPF_EXIT_INSN(), | |
2235 | }, | |
2236 | .result = REJECT, | |
2237 | .errstr = "invalid stack type R3 off=-512 access_size=2147483647", | |
2238 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2239 | }, | |
2240 | { | |
2241 | "raw_stack: skb_load_bytes, invalid access 6", | |
2242 | .insns = { | |
2243 | BPF_MOV64_IMM(BPF_REG_2, 4), | |
2244 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
2245 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -512), | |
2246 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | |
2247 | BPF_MOV64_IMM(BPF_REG_4, 0), | |
5aa5bd14 DB |
2248 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
2249 | BPF_FUNC_skb_load_bytes), | |
3f2050e2 DB |
2250 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), |
2251 | BPF_EXIT_INSN(), | |
2252 | }, | |
2253 | .result = REJECT, | |
2254 | .errstr = "invalid stack type R3 off=-512 access_size=0", | |
2255 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2256 | }, | |
2257 | { | |
2258 | "raw_stack: skb_load_bytes, large access", | |
2259 | .insns = { | |
2260 | BPF_MOV64_IMM(BPF_REG_2, 4), | |
2261 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
2262 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -512), | |
2263 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | |
2264 | BPF_MOV64_IMM(BPF_REG_4, 512), | |
5aa5bd14 DB |
2265 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
2266 | BPF_FUNC_skb_load_bytes), | |
3f2050e2 DB |
2267 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), |
2268 | BPF_EXIT_INSN(), | |
2269 | }, | |
2270 | .result = ACCEPT, | |
2271 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2272 | }, | |
883e44e4 | 2273 | { |
1633ac0a | 2274 | "direct packet access: test1", |
883e44e4 AS |
2275 | .insns = { |
2276 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
2277 | offsetof(struct __sk_buff, data)), | |
2278 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
2279 | offsetof(struct __sk_buff, data_end)), | |
2280 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | |
2281 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), | |
2282 | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1), | |
2283 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0), | |
2284 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
2285 | BPF_EXIT_INSN(), | |
2286 | }, | |
2287 | .result = ACCEPT, | |
2288 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2289 | }, | |
2290 | { | |
1633ac0a | 2291 | "direct packet access: test2", |
883e44e4 AS |
2292 | .insns = { |
2293 | BPF_MOV64_IMM(BPF_REG_0, 1), | |
2294 | BPF_LDX_MEM(BPF_W, BPF_REG_4, BPF_REG_1, | |
2295 | offsetof(struct __sk_buff, data_end)), | |
2296 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
2297 | offsetof(struct __sk_buff, data)), | |
2298 | BPF_MOV64_REG(BPF_REG_5, BPF_REG_3), | |
2299 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_5, 14), | |
2300 | BPF_JMP_REG(BPF_JGT, BPF_REG_5, BPF_REG_4, 15), | |
2301 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_3, 7), | |
2302 | BPF_LDX_MEM(BPF_B, BPF_REG_4, BPF_REG_3, 12), | |
2303 | BPF_ALU64_IMM(BPF_MUL, BPF_REG_4, 14), | |
2304 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
2305 | offsetof(struct __sk_buff, data)), | |
2306 | BPF_ALU64_REG(BPF_ADD, BPF_REG_3, BPF_REG_4), | |
2307 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_1), | |
2308 | BPF_ALU64_IMM(BPF_LSH, BPF_REG_2, 48), | |
2309 | BPF_ALU64_IMM(BPF_RSH, BPF_REG_2, 48), | |
2310 | BPF_ALU64_REG(BPF_ADD, BPF_REG_3, BPF_REG_2), | |
2311 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_3), | |
2312 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 8), | |
2313 | BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_1, | |
2314 | offsetof(struct __sk_buff, data_end)), | |
2315 | BPF_JMP_REG(BPF_JGT, BPF_REG_2, BPF_REG_1, 1), | |
2316 | BPF_LDX_MEM(BPF_B, BPF_REG_1, BPF_REG_3, 4), | |
2317 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
2318 | BPF_EXIT_INSN(), | |
2319 | }, | |
2320 | .result = ACCEPT, | |
2321 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2322 | }, | |
2323 | { | |
1633ac0a | 2324 | "direct packet access: test3", |
883e44e4 AS |
2325 | .insns = { |
2326 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
2327 | offsetof(struct __sk_buff, data)), | |
2328 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
2329 | BPF_EXIT_INSN(), | |
2330 | }, | |
2331 | .errstr = "invalid bpf_context access off=76", | |
2332 | .result = REJECT, | |
2333 | .prog_type = BPF_PROG_TYPE_SOCKET_FILTER, | |
2334 | }, | |
2335 | { | |
7d95b0ab | 2336 | "direct packet access: test4 (write)", |
883e44e4 AS |
2337 | .insns = { |
2338 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
2339 | offsetof(struct __sk_buff, data)), | |
2340 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
2341 | offsetof(struct __sk_buff, data_end)), | |
2342 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | |
2343 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), | |
2344 | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1), | |
2345 | BPF_STX_MEM(BPF_B, BPF_REG_2, BPF_REG_2, 0), | |
2346 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
2347 | BPF_EXIT_INSN(), | |
2348 | }, | |
7d95b0ab | 2349 | .result = ACCEPT, |
883e44e4 AS |
2350 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
2351 | }, | |
2d2be8ca DB |
2352 | { |
2353 | "direct packet access: test5 (pkt_end >= reg, good access)", | |
2354 | .insns = { | |
2355 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
2356 | offsetof(struct __sk_buff, data)), | |
2357 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
2358 | offsetof(struct __sk_buff, data_end)), | |
2359 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | |
2360 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), | |
2361 | BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_0, 2), | |
2362 | BPF_MOV64_IMM(BPF_REG_0, 1), | |
2363 | BPF_EXIT_INSN(), | |
2364 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0), | |
2365 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
2366 | BPF_EXIT_INSN(), | |
2367 | }, | |
2368 | .result = ACCEPT, | |
2369 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2370 | }, | |
2371 | { | |
2372 | "direct packet access: test6 (pkt_end >= reg, bad access)", | |
2373 | .insns = { | |
2374 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
2375 | offsetof(struct __sk_buff, data)), | |
2376 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
2377 | offsetof(struct __sk_buff, data_end)), | |
2378 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | |
2379 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), | |
2380 | BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_0, 3), | |
2381 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0), | |
2382 | BPF_MOV64_IMM(BPF_REG_0, 1), | |
2383 | BPF_EXIT_INSN(), | |
2384 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
2385 | BPF_EXIT_INSN(), | |
2386 | }, | |
2387 | .errstr = "invalid access to packet", | |
2388 | .result = REJECT, | |
2389 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2390 | }, | |
2391 | { | |
2392 | "direct packet access: test7 (pkt_end >= reg, both accesses)", | |
2393 | .insns = { | |
2394 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
2395 | offsetof(struct __sk_buff, data)), | |
2396 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
2397 | offsetof(struct __sk_buff, data_end)), | |
2398 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | |
2399 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), | |
2400 | BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_0, 3), | |
2401 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0), | |
2402 | BPF_MOV64_IMM(BPF_REG_0, 1), | |
2403 | BPF_EXIT_INSN(), | |
2404 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0), | |
2405 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
2406 | BPF_EXIT_INSN(), | |
2407 | }, | |
2408 | .errstr = "invalid access to packet", | |
2409 | .result = REJECT, | |
2410 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2411 | }, | |
2412 | { | |
2413 | "direct packet access: test8 (double test, variant 1)", | |
2414 | .insns = { | |
2415 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
2416 | offsetof(struct __sk_buff, data)), | |
2417 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
2418 | offsetof(struct __sk_buff, data_end)), | |
2419 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | |
2420 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), | |
2421 | BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_0, 4), | |
2422 | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1), | |
2423 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0), | |
2424 | BPF_MOV64_IMM(BPF_REG_0, 1), | |
2425 | BPF_EXIT_INSN(), | |
2426 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0), | |
2427 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
2428 | BPF_EXIT_INSN(), | |
2429 | }, | |
2430 | .result = ACCEPT, | |
2431 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2432 | }, | |
2433 | { | |
2434 | "direct packet access: test9 (double test, variant 2)", | |
2435 | .insns = { | |
2436 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
2437 | offsetof(struct __sk_buff, data)), | |
2438 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
2439 | offsetof(struct __sk_buff, data_end)), | |
2440 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | |
2441 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), | |
2442 | BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_0, 2), | |
2443 | BPF_MOV64_IMM(BPF_REG_0, 1), | |
2444 | BPF_EXIT_INSN(), | |
2445 | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1), | |
2446 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0), | |
2447 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0), | |
2448 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
2449 | BPF_EXIT_INSN(), | |
2450 | }, | |
2451 | .result = ACCEPT, | |
2452 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2453 | }, | |
7d95b0ab DB |
2454 | { |
2455 | "direct packet access: test10 (write invalid)", | |
2456 | .insns = { | |
2457 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
2458 | offsetof(struct __sk_buff, data)), | |
2459 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
2460 | offsetof(struct __sk_buff, data_end)), | |
2461 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | |
2462 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), | |
2463 | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 2), | |
2464 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
2465 | BPF_EXIT_INSN(), | |
2466 | BPF_STX_MEM(BPF_B, BPF_REG_2, BPF_REG_2, 0), | |
2467 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
2468 | BPF_EXIT_INSN(), | |
2469 | }, | |
2470 | .errstr = "invalid access to packet", | |
2471 | .result = REJECT, | |
2472 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2473 | }, | |
3fadc801 DB |
2474 | { |
2475 | "direct packet access: test11 (shift, good access)", | |
2476 | .insns = { | |
2477 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
2478 | offsetof(struct __sk_buff, data)), | |
2479 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
2480 | offsetof(struct __sk_buff, data_end)), | |
2481 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | |
2482 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 22), | |
2483 | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 8), | |
2484 | BPF_MOV64_IMM(BPF_REG_3, 144), | |
2485 | BPF_MOV64_REG(BPF_REG_5, BPF_REG_3), | |
2486 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_5, 23), | |
2487 | BPF_ALU64_IMM(BPF_RSH, BPF_REG_5, 3), | |
2488 | BPF_MOV64_REG(BPF_REG_6, BPF_REG_2), | |
2489 | BPF_ALU64_REG(BPF_ADD, BPF_REG_6, BPF_REG_5), | |
2490 | BPF_MOV64_IMM(BPF_REG_0, 1), | |
2491 | BPF_EXIT_INSN(), | |
2492 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
2493 | BPF_EXIT_INSN(), | |
2494 | }, | |
2495 | .result = ACCEPT, | |
2496 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2497 | }, | |
2498 | { | |
2499 | "direct packet access: test12 (and, good access)", | |
2500 | .insns = { | |
2501 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
2502 | offsetof(struct __sk_buff, data)), | |
2503 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
2504 | offsetof(struct __sk_buff, data_end)), | |
2505 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | |
2506 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 22), | |
2507 | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 8), | |
2508 | BPF_MOV64_IMM(BPF_REG_3, 144), | |
2509 | BPF_MOV64_REG(BPF_REG_5, BPF_REG_3), | |
2510 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_5, 23), | |
2511 | BPF_ALU64_IMM(BPF_AND, BPF_REG_5, 15), | |
2512 | BPF_MOV64_REG(BPF_REG_6, BPF_REG_2), | |
2513 | BPF_ALU64_REG(BPF_ADD, BPF_REG_6, BPF_REG_5), | |
2514 | BPF_MOV64_IMM(BPF_REG_0, 1), | |
2515 | BPF_EXIT_INSN(), | |
2516 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
2517 | BPF_EXIT_INSN(), | |
2518 | }, | |
2519 | .result = ACCEPT, | |
2520 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2521 | }, | |
2522 | { | |
2523 | "direct packet access: test13 (branches, good access)", | |
2524 | .insns = { | |
2525 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
2526 | offsetof(struct __sk_buff, data)), | |
2527 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
2528 | offsetof(struct __sk_buff, data_end)), | |
2529 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | |
2530 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 22), | |
2531 | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 13), | |
2532 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
2533 | offsetof(struct __sk_buff, mark)), | |
2534 | BPF_MOV64_IMM(BPF_REG_4, 1), | |
2535 | BPF_JMP_REG(BPF_JGT, BPF_REG_3, BPF_REG_4, 2), | |
2536 | BPF_MOV64_IMM(BPF_REG_3, 14), | |
2537 | BPF_JMP_IMM(BPF_JA, 0, 0, 1), | |
2538 | BPF_MOV64_IMM(BPF_REG_3, 24), | |
2539 | BPF_MOV64_REG(BPF_REG_5, BPF_REG_3), | |
2540 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_5, 23), | |
2541 | BPF_ALU64_IMM(BPF_AND, BPF_REG_5, 15), | |
2542 | BPF_MOV64_REG(BPF_REG_6, BPF_REG_2), | |
2543 | BPF_ALU64_REG(BPF_ADD, BPF_REG_6, BPF_REG_5), | |
2544 | BPF_MOV64_IMM(BPF_REG_0, 1), | |
2545 | BPF_EXIT_INSN(), | |
2546 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
2547 | BPF_EXIT_INSN(), | |
2548 | }, | |
2549 | .result = ACCEPT, | |
2550 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2551 | }, | |
63dfef75 WT |
2552 | { |
2553 | "direct packet access: test14 (pkt_ptr += 0, CONST_IMM, good access)", | |
2554 | .insns = { | |
2555 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
2556 | offsetof(struct __sk_buff, data)), | |
2557 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
2558 | offsetof(struct __sk_buff, data_end)), | |
2559 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | |
2560 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 22), | |
2561 | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 7), | |
2562 | BPF_MOV64_IMM(BPF_REG_5, 12), | |
2563 | BPF_ALU64_IMM(BPF_RSH, BPF_REG_5, 4), | |
2564 | BPF_MOV64_REG(BPF_REG_6, BPF_REG_2), | |
2565 | BPF_ALU64_REG(BPF_ADD, BPF_REG_6, BPF_REG_5), | |
2566 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_6, 0), | |
2567 | BPF_MOV64_IMM(BPF_REG_0, 1), | |
2568 | BPF_EXIT_INSN(), | |
2569 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
2570 | BPF_EXIT_INSN(), | |
2571 | }, | |
2572 | .result = ACCEPT, | |
2573 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2574 | }, | |
02ea80b1 DB |
2575 | { |
2576 | "direct packet access: test15 (spill with xadd)", | |
2577 | .insns = { | |
2578 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
2579 | offsetof(struct __sk_buff, data)), | |
2580 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
2581 | offsetof(struct __sk_buff, data_end)), | |
2582 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | |
2583 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), | |
2584 | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 8), | |
2585 | BPF_MOV64_IMM(BPF_REG_5, 4096), | |
2586 | BPF_MOV64_REG(BPF_REG_4, BPF_REG_10), | |
2587 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, -8), | |
2588 | BPF_STX_MEM(BPF_DW, BPF_REG_4, BPF_REG_2, 0), | |
2589 | BPF_STX_XADD(BPF_DW, BPF_REG_4, BPF_REG_5, 0), | |
2590 | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_4, 0), | |
2591 | BPF_STX_MEM(BPF_W, BPF_REG_2, BPF_REG_5, 0), | |
2592 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
2593 | BPF_EXIT_INSN(), | |
2594 | }, | |
2595 | .errstr = "R2 invalid mem access 'inv'", | |
2596 | .result = REJECT, | |
2597 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2598 | }, | |
728a853a DB |
2599 | { |
2600 | "direct packet access: test16 (arith on data_end)", | |
2601 | .insns = { | |
2602 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
2603 | offsetof(struct __sk_buff, data)), | |
2604 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
2605 | offsetof(struct __sk_buff, data_end)), | |
2606 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | |
2607 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), | |
2608 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_3, 16), | |
2609 | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1), | |
2610 | BPF_STX_MEM(BPF_B, BPF_REG_2, BPF_REG_2, 0), | |
2611 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
2612 | BPF_EXIT_INSN(), | |
2613 | }, | |
2614 | .errstr = "invalid access to packet", | |
2615 | .result = REJECT, | |
2616 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2617 | }, | |
614d0d77 DB |
2618 | { |
2619 | "direct packet access: test17 (pruning, alignment)", | |
2620 | .insns = { | |
2621 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
2622 | offsetof(struct __sk_buff, data)), | |
2623 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
2624 | offsetof(struct __sk_buff, data_end)), | |
2625 | BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1, | |
2626 | offsetof(struct __sk_buff, mark)), | |
2627 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | |
2628 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 14), | |
2629 | BPF_JMP_IMM(BPF_JGT, BPF_REG_7, 1, 4), | |
2630 | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1), | |
2631 | BPF_STX_MEM(BPF_W, BPF_REG_0, BPF_REG_0, -4), | |
2632 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
2633 | BPF_EXIT_INSN(), | |
2634 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 1), | |
2635 | BPF_JMP_A(-6), | |
2636 | }, | |
2637 | .errstr = "misaligned packet access off 2+15+-4 size 4", | |
2638 | .result = REJECT, | |
2639 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2640 | .flags = F_LOAD_WITH_STRICT_ALIGNMENT, | |
2641 | }, | |
1633ac0a AY |
2642 | { |
2643 | "helper access to packet: test1, valid packet_ptr range", | |
2644 | .insns = { | |
2645 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
2646 | offsetof(struct xdp_md, data)), | |
2647 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
2648 | offsetof(struct xdp_md, data_end)), | |
2649 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_2), | |
2650 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8), | |
2651 | BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_3, 5), | |
2652 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
2653 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_2), | |
2654 | BPF_MOV64_IMM(BPF_REG_4, 0), | |
5aa5bd14 DB |
2655 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
2656 | BPF_FUNC_map_update_elem), | |
1633ac0a AY |
2657 | BPF_MOV64_IMM(BPF_REG_0, 0), |
2658 | BPF_EXIT_INSN(), | |
2659 | }, | |
5aa5bd14 | 2660 | .fixup_map1 = { 5 }, |
1633ac0a AY |
2661 | .result_unpriv = ACCEPT, |
2662 | .result = ACCEPT, | |
2663 | .prog_type = BPF_PROG_TYPE_XDP, | |
2664 | }, | |
2665 | { | |
2666 | "helper access to packet: test2, unchecked packet_ptr", | |
2667 | .insns = { | |
2668 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
2669 | offsetof(struct xdp_md, data)), | |
2670 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
5aa5bd14 DB |
2671 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
2672 | BPF_FUNC_map_lookup_elem), | |
1633ac0a AY |
2673 | BPF_MOV64_IMM(BPF_REG_0, 0), |
2674 | BPF_EXIT_INSN(), | |
2675 | }, | |
5aa5bd14 | 2676 | .fixup_map1 = { 1 }, |
1633ac0a AY |
2677 | .result = REJECT, |
2678 | .errstr = "invalid access to packet", | |
2679 | .prog_type = BPF_PROG_TYPE_XDP, | |
2680 | }, | |
2681 | { | |
2682 | "helper access to packet: test3, variable add", | |
2683 | .insns = { | |
2684 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
2685 | offsetof(struct xdp_md, data)), | |
2686 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
2687 | offsetof(struct xdp_md, data_end)), | |
2688 | BPF_MOV64_REG(BPF_REG_4, BPF_REG_2), | |
2689 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 8), | |
2690 | BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 10), | |
2691 | BPF_LDX_MEM(BPF_B, BPF_REG_5, BPF_REG_2, 0), | |
2692 | BPF_MOV64_REG(BPF_REG_4, BPF_REG_2), | |
2693 | BPF_ALU64_REG(BPF_ADD, BPF_REG_4, BPF_REG_5), | |
2694 | BPF_MOV64_REG(BPF_REG_5, BPF_REG_4), | |
2695 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_5, 8), | |
2696 | BPF_JMP_REG(BPF_JGT, BPF_REG_5, BPF_REG_3, 4), | |
2697 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
2698 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_4), | |
5aa5bd14 DB |
2699 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
2700 | BPF_FUNC_map_lookup_elem), | |
1633ac0a AY |
2701 | BPF_MOV64_IMM(BPF_REG_0, 0), |
2702 | BPF_EXIT_INSN(), | |
2703 | }, | |
5aa5bd14 | 2704 | .fixup_map1 = { 11 }, |
1633ac0a AY |
2705 | .result = ACCEPT, |
2706 | .prog_type = BPF_PROG_TYPE_XDP, | |
2707 | }, | |
2708 | { | |
2709 | "helper access to packet: test4, packet_ptr with bad range", | |
2710 | .insns = { | |
2711 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
2712 | offsetof(struct xdp_md, data)), | |
2713 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
2714 | offsetof(struct xdp_md, data_end)), | |
2715 | BPF_MOV64_REG(BPF_REG_4, BPF_REG_2), | |
2716 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 4), | |
2717 | BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 2), | |
2718 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
2719 | BPF_EXIT_INSN(), | |
2720 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
5aa5bd14 DB |
2721 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
2722 | BPF_FUNC_map_lookup_elem), | |
1633ac0a AY |
2723 | BPF_MOV64_IMM(BPF_REG_0, 0), |
2724 | BPF_EXIT_INSN(), | |
2725 | }, | |
5aa5bd14 | 2726 | .fixup_map1 = { 7 }, |
1633ac0a AY |
2727 | .result = REJECT, |
2728 | .errstr = "invalid access to packet", | |
2729 | .prog_type = BPF_PROG_TYPE_XDP, | |
2730 | }, | |
2731 | { | |
2732 | "helper access to packet: test5, packet_ptr with too short range", | |
2733 | .insns = { | |
2734 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
2735 | offsetof(struct xdp_md, data)), | |
2736 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
2737 | offsetof(struct xdp_md, data_end)), | |
2738 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 1), | |
2739 | BPF_MOV64_REG(BPF_REG_4, BPF_REG_2), | |
2740 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 7), | |
2741 | BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 3), | |
2742 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
5aa5bd14 DB |
2743 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
2744 | BPF_FUNC_map_lookup_elem), | |
1633ac0a AY |
2745 | BPF_MOV64_IMM(BPF_REG_0, 0), |
2746 | BPF_EXIT_INSN(), | |
2747 | }, | |
5aa5bd14 | 2748 | .fixup_map1 = { 6 }, |
1633ac0a AY |
2749 | .result = REJECT, |
2750 | .errstr = "invalid access to packet", | |
2751 | .prog_type = BPF_PROG_TYPE_XDP, | |
2752 | }, | |
7d95b0ab DB |
2753 | { |
2754 | "helper access to packet: test6, cls valid packet_ptr range", | |
2755 | .insns = { | |
2756 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
2757 | offsetof(struct __sk_buff, data)), | |
2758 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
2759 | offsetof(struct __sk_buff, data_end)), | |
2760 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_2), | |
2761 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8), | |
2762 | BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_3, 5), | |
2763 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
2764 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_2), | |
2765 | BPF_MOV64_IMM(BPF_REG_4, 0), | |
5aa5bd14 DB |
2766 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
2767 | BPF_FUNC_map_update_elem), | |
7d95b0ab DB |
2768 | BPF_MOV64_IMM(BPF_REG_0, 0), |
2769 | BPF_EXIT_INSN(), | |
2770 | }, | |
5aa5bd14 | 2771 | .fixup_map1 = { 5 }, |
7d95b0ab DB |
2772 | .result = ACCEPT, |
2773 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2774 | }, | |
2775 | { | |
2776 | "helper access to packet: test7, cls unchecked packet_ptr", | |
2777 | .insns = { | |
2778 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
2779 | offsetof(struct __sk_buff, data)), | |
2780 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
5aa5bd14 DB |
2781 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
2782 | BPF_FUNC_map_lookup_elem), | |
7d95b0ab DB |
2783 | BPF_MOV64_IMM(BPF_REG_0, 0), |
2784 | BPF_EXIT_INSN(), | |
2785 | }, | |
5aa5bd14 | 2786 | .fixup_map1 = { 1 }, |
7d95b0ab DB |
2787 | .result = REJECT, |
2788 | .errstr = "invalid access to packet", | |
2789 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2790 | }, | |
2791 | { | |
2792 | "helper access to packet: test8, cls variable add", | |
2793 | .insns = { | |
2794 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
2795 | offsetof(struct __sk_buff, data)), | |
2796 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
2797 | offsetof(struct __sk_buff, data_end)), | |
2798 | BPF_MOV64_REG(BPF_REG_4, BPF_REG_2), | |
2799 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 8), | |
2800 | BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 10), | |
2801 | BPF_LDX_MEM(BPF_B, BPF_REG_5, BPF_REG_2, 0), | |
2802 | BPF_MOV64_REG(BPF_REG_4, BPF_REG_2), | |
2803 | BPF_ALU64_REG(BPF_ADD, BPF_REG_4, BPF_REG_5), | |
2804 | BPF_MOV64_REG(BPF_REG_5, BPF_REG_4), | |
2805 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_5, 8), | |
2806 | BPF_JMP_REG(BPF_JGT, BPF_REG_5, BPF_REG_3, 4), | |
2807 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
2808 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_4), | |
5aa5bd14 DB |
2809 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
2810 | BPF_FUNC_map_lookup_elem), | |
7d95b0ab DB |
2811 | BPF_MOV64_IMM(BPF_REG_0, 0), |
2812 | BPF_EXIT_INSN(), | |
2813 | }, | |
5aa5bd14 | 2814 | .fixup_map1 = { 11 }, |
7d95b0ab DB |
2815 | .result = ACCEPT, |
2816 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2817 | }, | |
2818 | { | |
2819 | "helper access to packet: test9, cls packet_ptr with bad range", | |
2820 | .insns = { | |
2821 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
2822 | offsetof(struct __sk_buff, data)), | |
2823 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
2824 | offsetof(struct __sk_buff, data_end)), | |
2825 | BPF_MOV64_REG(BPF_REG_4, BPF_REG_2), | |
2826 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 4), | |
2827 | BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 2), | |
2828 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
2829 | BPF_EXIT_INSN(), | |
2830 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
5aa5bd14 DB |
2831 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
2832 | BPF_FUNC_map_lookup_elem), | |
7d95b0ab DB |
2833 | BPF_MOV64_IMM(BPF_REG_0, 0), |
2834 | BPF_EXIT_INSN(), | |
2835 | }, | |
5aa5bd14 | 2836 | .fixup_map1 = { 7 }, |
7d95b0ab DB |
2837 | .result = REJECT, |
2838 | .errstr = "invalid access to packet", | |
2839 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2840 | }, | |
2841 | { | |
2842 | "helper access to packet: test10, cls packet_ptr with too short range", | |
2843 | .insns = { | |
2844 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
2845 | offsetof(struct __sk_buff, data)), | |
2846 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
2847 | offsetof(struct __sk_buff, data_end)), | |
2848 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 1), | |
2849 | BPF_MOV64_REG(BPF_REG_4, BPF_REG_2), | |
2850 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 7), | |
2851 | BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 3), | |
2852 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
5aa5bd14 DB |
2853 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
2854 | BPF_FUNC_map_lookup_elem), | |
7d95b0ab DB |
2855 | BPF_MOV64_IMM(BPF_REG_0, 0), |
2856 | BPF_EXIT_INSN(), | |
2857 | }, | |
5aa5bd14 | 2858 | .fixup_map1 = { 6 }, |
7d95b0ab DB |
2859 | .result = REJECT, |
2860 | .errstr = "invalid access to packet", | |
2861 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2862 | }, | |
2863 | { | |
2864 | "helper access to packet: test11, cls unsuitable helper 1", | |
2865 | .insns = { | |
2866 | BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1, | |
2867 | offsetof(struct __sk_buff, data)), | |
2868 | BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1, | |
2869 | offsetof(struct __sk_buff, data_end)), | |
2870 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1), | |
2871 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | |
2872 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_3, 7), | |
2873 | BPF_JMP_REG(BPF_JGT, BPF_REG_3, BPF_REG_7, 4), | |
2874 | BPF_MOV64_IMM(BPF_REG_2, 0), | |
2875 | BPF_MOV64_IMM(BPF_REG_4, 42), | |
2876 | BPF_MOV64_IMM(BPF_REG_5, 0), | |
5aa5bd14 DB |
2877 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
2878 | BPF_FUNC_skb_store_bytes), | |
7d95b0ab DB |
2879 | BPF_MOV64_IMM(BPF_REG_0, 0), |
2880 | BPF_EXIT_INSN(), | |
2881 | }, | |
2882 | .result = REJECT, | |
2883 | .errstr = "helper access to the packet", | |
2884 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2885 | }, | |
2886 | { | |
2887 | "helper access to packet: test12, cls unsuitable helper 2", | |
2888 | .insns = { | |
2889 | BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1, | |
2890 | offsetof(struct __sk_buff, data)), | |
2891 | BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1, | |
2892 | offsetof(struct __sk_buff, data_end)), | |
2893 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | |
2894 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 8), | |
2895 | BPF_JMP_REG(BPF_JGT, BPF_REG_6, BPF_REG_7, 3), | |
2896 | BPF_MOV64_IMM(BPF_REG_2, 0), | |
2897 | BPF_MOV64_IMM(BPF_REG_4, 4), | |
5aa5bd14 DB |
2898 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
2899 | BPF_FUNC_skb_load_bytes), | |
7d95b0ab DB |
2900 | BPF_MOV64_IMM(BPF_REG_0, 0), |
2901 | BPF_EXIT_INSN(), | |
2902 | }, | |
2903 | .result = REJECT, | |
2904 | .errstr = "helper access to the packet", | |
2905 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2906 | }, | |
2907 | { | |
2908 | "helper access to packet: test13, cls helper ok", | |
2909 | .insns = { | |
2910 | BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1, | |
2911 | offsetof(struct __sk_buff, data)), | |
2912 | BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1, | |
2913 | offsetof(struct __sk_buff, data_end)), | |
2914 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1), | |
2915 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), | |
2916 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7), | |
2917 | BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6), | |
2918 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), | |
2919 | BPF_MOV64_IMM(BPF_REG_2, 4), | |
2920 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
2921 | BPF_MOV64_IMM(BPF_REG_4, 0), | |
2922 | BPF_MOV64_IMM(BPF_REG_5, 0), | |
5aa5bd14 DB |
2923 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
2924 | BPF_FUNC_csum_diff), | |
7d95b0ab DB |
2925 | BPF_MOV64_IMM(BPF_REG_0, 0), |
2926 | BPF_EXIT_INSN(), | |
2927 | }, | |
2928 | .result = ACCEPT, | |
2929 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2930 | }, | |
2931 | { | |
2932 | "helper access to packet: test14, cls helper fail sub", | |
2933 | .insns = { | |
2934 | BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1, | |
2935 | offsetof(struct __sk_buff, data)), | |
2936 | BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1, | |
2937 | offsetof(struct __sk_buff, data_end)), | |
2938 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1), | |
2939 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), | |
2940 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7), | |
2941 | BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6), | |
2942 | BPF_ALU64_IMM(BPF_SUB, BPF_REG_1, 4), | |
2943 | BPF_MOV64_IMM(BPF_REG_2, 4), | |
2944 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
2945 | BPF_MOV64_IMM(BPF_REG_4, 0), | |
2946 | BPF_MOV64_IMM(BPF_REG_5, 0), | |
5aa5bd14 DB |
2947 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
2948 | BPF_FUNC_csum_diff), | |
7d95b0ab DB |
2949 | BPF_MOV64_IMM(BPF_REG_0, 0), |
2950 | BPF_EXIT_INSN(), | |
2951 | }, | |
2952 | .result = REJECT, | |
2953 | .errstr = "type=inv expected=fp", | |
2954 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2955 | }, | |
2956 | { | |
2957 | "helper access to packet: test15, cls helper fail range 1", | |
2958 | .insns = { | |
2959 | BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1, | |
2960 | offsetof(struct __sk_buff, data)), | |
2961 | BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1, | |
2962 | offsetof(struct __sk_buff, data_end)), | |
2963 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1), | |
2964 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), | |
2965 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7), | |
2966 | BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6), | |
2967 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), | |
2968 | BPF_MOV64_IMM(BPF_REG_2, 8), | |
2969 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
2970 | BPF_MOV64_IMM(BPF_REG_4, 0), | |
2971 | BPF_MOV64_IMM(BPF_REG_5, 0), | |
5aa5bd14 DB |
2972 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
2973 | BPF_FUNC_csum_diff), | |
7d95b0ab DB |
2974 | BPF_MOV64_IMM(BPF_REG_0, 0), |
2975 | BPF_EXIT_INSN(), | |
2976 | }, | |
2977 | .result = REJECT, | |
2978 | .errstr = "invalid access to packet", | |
2979 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2980 | }, | |
2981 | { | |
2982 | "helper access to packet: test16, cls helper fail range 2", | |
2983 | .insns = { | |
2984 | BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1, | |
2985 | offsetof(struct __sk_buff, data)), | |
2986 | BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1, | |
2987 | offsetof(struct __sk_buff, data_end)), | |
2988 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1), | |
2989 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), | |
2990 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7), | |
2991 | BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6), | |
2992 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), | |
2993 | BPF_MOV64_IMM(BPF_REG_2, -9), | |
2994 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
2995 | BPF_MOV64_IMM(BPF_REG_4, 0), | |
2996 | BPF_MOV64_IMM(BPF_REG_5, 0), | |
5aa5bd14 DB |
2997 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
2998 | BPF_FUNC_csum_diff), | |
7d95b0ab DB |
2999 | BPF_MOV64_IMM(BPF_REG_0, 0), |
3000 | BPF_EXIT_INSN(), | |
3001 | }, | |
3002 | .result = REJECT, | |
3003 | .errstr = "invalid access to packet", | |
3004 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
3005 | }, | |
3006 | { | |
3007 | "helper access to packet: test17, cls helper fail range 3", | |
3008 | .insns = { | |
3009 | BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1, | |
3010 | offsetof(struct __sk_buff, data)), | |
3011 | BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1, | |
3012 | offsetof(struct __sk_buff, data_end)), | |
3013 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1), | |
3014 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), | |
3015 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7), | |
3016 | BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6), | |
3017 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), | |
3018 | BPF_MOV64_IMM(BPF_REG_2, ~0), | |
3019 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
3020 | BPF_MOV64_IMM(BPF_REG_4, 0), | |
3021 | BPF_MOV64_IMM(BPF_REG_5, 0), | |
5aa5bd14 DB |
3022 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
3023 | BPF_FUNC_csum_diff), | |
7d95b0ab DB |
3024 | BPF_MOV64_IMM(BPF_REG_0, 0), |
3025 | BPF_EXIT_INSN(), | |
3026 | }, | |
3027 | .result = REJECT, | |
3028 | .errstr = "invalid access to packet", | |
3029 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
3030 | }, | |
3031 | { | |
3032 | "helper access to packet: test18, cls helper fail range zero", | |
3033 | .insns = { | |
3034 | BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1, | |
3035 | offsetof(struct __sk_buff, data)), | |
3036 | BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1, | |
3037 | offsetof(struct __sk_buff, data_end)), | |
3038 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1), | |
3039 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), | |
3040 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7), | |
3041 | BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6), | |
3042 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), | |
3043 | BPF_MOV64_IMM(BPF_REG_2, 0), | |
3044 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
3045 | BPF_MOV64_IMM(BPF_REG_4, 0), | |
3046 | BPF_MOV64_IMM(BPF_REG_5, 0), | |
5aa5bd14 DB |
3047 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
3048 | BPF_FUNC_csum_diff), | |
7d95b0ab DB |
3049 | BPF_MOV64_IMM(BPF_REG_0, 0), |
3050 | BPF_EXIT_INSN(), | |
3051 | }, | |
3052 | .result = REJECT, | |
3053 | .errstr = "invalid access to packet", | |
3054 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
3055 | }, | |
3056 | { | |
3057 | "helper access to packet: test19, pkt end as input", | |
3058 | .insns = { | |
3059 | BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1, | |
3060 | offsetof(struct __sk_buff, data)), | |
3061 | BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1, | |
3062 | offsetof(struct __sk_buff, data_end)), | |
3063 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1), | |
3064 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), | |
3065 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7), | |
3066 | BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6), | |
3067 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_7), | |
3068 | BPF_MOV64_IMM(BPF_REG_2, 4), | |
3069 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
3070 | BPF_MOV64_IMM(BPF_REG_4, 0), | |
3071 | BPF_MOV64_IMM(BPF_REG_5, 0), | |
5aa5bd14 DB |
3072 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
3073 | BPF_FUNC_csum_diff), | |
7d95b0ab DB |
3074 | BPF_MOV64_IMM(BPF_REG_0, 0), |
3075 | BPF_EXIT_INSN(), | |
3076 | }, | |
3077 | .result = REJECT, | |
3078 | .errstr = "R1 type=pkt_end expected=fp", | |
3079 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
3080 | }, | |
3081 | { | |
3082 | "helper access to packet: test20, wrong reg", | |
3083 | .insns = { | |
3084 | BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1, | |
3085 | offsetof(struct __sk_buff, data)), | |
3086 | BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1, | |
3087 | offsetof(struct __sk_buff, data_end)), | |
3088 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1), | |
3089 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), | |
3090 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7), | |
3091 | BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6), | |
3092 | BPF_MOV64_IMM(BPF_REG_2, 4), | |
3093 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
3094 | BPF_MOV64_IMM(BPF_REG_4, 0), | |
3095 | BPF_MOV64_IMM(BPF_REG_5, 0), | |
5aa5bd14 DB |
3096 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
3097 | BPF_FUNC_csum_diff), | |
7d95b0ab DB |
3098 | BPF_MOV64_IMM(BPF_REG_0, 0), |
3099 | BPF_EXIT_INSN(), | |
3100 | }, | |
3101 | .result = REJECT, | |
3102 | .errstr = "invalid access to packet", | |
3103 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
3104 | }, | |
48461135 JB |
3105 | { |
3106 | "valid map access into an array with a constant", | |
3107 | .insns = { | |
3108 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | |
3109 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
3110 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
3111 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
5aa5bd14 DB |
3112 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
3113 | BPF_FUNC_map_lookup_elem), | |
48461135 | 3114 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1), |
5aa5bd14 DB |
3115 | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, |
3116 | offsetof(struct test_val, foo)), | |
48461135 JB |
3117 | BPF_EXIT_INSN(), |
3118 | }, | |
5aa5bd14 | 3119 | .fixup_map2 = { 3 }, |
48461135 JB |
3120 | .errstr_unpriv = "R0 leaks addr", |
3121 | .result_unpriv = REJECT, | |
3122 | .result = ACCEPT, | |
3123 | }, | |
3124 | { | |
3125 | "valid map access into an array with a register", | |
3126 | .insns = { | |
3127 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | |
3128 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
3129 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
3130 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
5aa5bd14 DB |
3131 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
3132 | BPF_FUNC_map_lookup_elem), | |
48461135 JB |
3133 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4), |
3134 | BPF_MOV64_IMM(BPF_REG_1, 4), | |
3135 | BPF_ALU64_IMM(BPF_LSH, BPF_REG_1, 2), | |
3136 | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), | |
5aa5bd14 DB |
3137 | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, |
3138 | offsetof(struct test_val, foo)), | |
48461135 JB |
3139 | BPF_EXIT_INSN(), |
3140 | }, | |
5aa5bd14 DB |
3141 | .fixup_map2 = { 3 }, |
3142 | .errstr_unpriv = "R0 pointer arithmetic prohibited", | |
48461135 JB |
3143 | .result_unpriv = REJECT, |
3144 | .result = ACCEPT, | |
02ea80b1 | 3145 | .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, |
48461135 JB |
3146 | }, |
3147 | { | |
3148 | "valid map access into an array with a variable", | |
3149 | .insns = { | |
3150 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | |
3151 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
3152 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
3153 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
5aa5bd14 DB |
3154 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
3155 | BPF_FUNC_map_lookup_elem), | |
48461135 JB |
3156 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 5), |
3157 | BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 0), | |
3158 | BPF_JMP_IMM(BPF_JGE, BPF_REG_1, MAX_ENTRIES, 3), | |
3159 | BPF_ALU64_IMM(BPF_LSH, BPF_REG_1, 2), | |
3160 | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), | |
5aa5bd14 DB |
3161 | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, |
3162 | offsetof(struct test_val, foo)), | |
48461135 JB |
3163 | BPF_EXIT_INSN(), |
3164 | }, | |
5aa5bd14 DB |
3165 | .fixup_map2 = { 3 }, |
3166 | .errstr_unpriv = "R0 pointer arithmetic prohibited", | |
48461135 JB |
3167 | .result_unpriv = REJECT, |
3168 | .result = ACCEPT, | |
02ea80b1 | 3169 | .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, |
48461135 JB |
3170 | }, |
3171 | { | |
3172 | "valid map access into an array with a signed variable", | |
3173 | .insns = { | |
3174 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | |
3175 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
3176 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
3177 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
5aa5bd14 DB |
3178 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
3179 | BPF_FUNC_map_lookup_elem), | |
48461135 JB |
3180 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 9), |
3181 | BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 0), | |
3182 | BPF_JMP_IMM(BPF_JSGT, BPF_REG_1, 0xffffffff, 1), | |
3183 | BPF_MOV32_IMM(BPF_REG_1, 0), | |
3184 | BPF_MOV32_IMM(BPF_REG_2, MAX_ENTRIES), | |
3185 | BPF_JMP_REG(BPF_JSGT, BPF_REG_2, BPF_REG_1, 1), | |
3186 | BPF_MOV32_IMM(BPF_REG_1, 0), | |
3187 | BPF_ALU32_IMM(BPF_LSH, BPF_REG_1, 2), | |
3188 | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), | |
5aa5bd14 DB |
3189 | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, |
3190 | offsetof(struct test_val, foo)), | |
48461135 JB |
3191 | BPF_EXIT_INSN(), |
3192 | }, | |
5aa5bd14 DB |
3193 | .fixup_map2 = { 3 }, |
3194 | .errstr_unpriv = "R0 pointer arithmetic prohibited", | |
48461135 JB |
3195 | .result_unpriv = REJECT, |
3196 | .result = ACCEPT, | |
02ea80b1 | 3197 | .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, |
48461135 JB |
3198 | }, |
3199 | { | |
3200 | "invalid map access into an array with a constant", | |
3201 | .insns = { | |
3202 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | |
3203 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
3204 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
3205 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
5aa5bd14 DB |
3206 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
3207 | BPF_FUNC_map_lookup_elem), | |
48461135 JB |
3208 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1), |
3209 | BPF_ST_MEM(BPF_DW, BPF_REG_0, (MAX_ENTRIES + 1) << 2, | |
3210 | offsetof(struct test_val, foo)), | |
3211 | BPF_EXIT_INSN(), | |
3212 | }, | |
5aa5bd14 | 3213 | .fixup_map2 = { 3 }, |
48461135 JB |
3214 | .errstr = "invalid access to map value, value_size=48 off=48 size=8", |
3215 | .result = REJECT, | |
3216 | }, | |
3217 | { | |
3218 | "invalid map access into an array with a register", | |
3219 | .insns = { | |
3220 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | |
3221 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
3222 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
3223 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
5aa5bd14 DB |
3224 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
3225 | BPF_FUNC_map_lookup_elem), | |
48461135 JB |
3226 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4), |
3227 | BPF_MOV64_IMM(BPF_REG_1, MAX_ENTRIES + 1), | |
3228 | BPF_ALU64_IMM(BPF_LSH, BPF_REG_1, 2), | |
3229 | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), | |
5aa5bd14 DB |
3230 | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, |
3231 | offsetof(struct test_val, foo)), | |
48461135 JB |
3232 | BPF_EXIT_INSN(), |
3233 | }, | |
5aa5bd14 DB |
3234 | .fixup_map2 = { 3 }, |
3235 | .errstr_unpriv = "R0 pointer arithmetic prohibited", | |
48461135 | 3236 | .errstr = "R0 min value is outside of the array range", |
5aa5bd14 | 3237 | .result_unpriv = REJECT, |
48461135 | 3238 | .result = REJECT, |
02ea80b1 | 3239 | .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, |
48461135 JB |
3240 | }, |
3241 | { | |
3242 | "invalid map access into an array with a variable", | |
3243 | .insns = { | |
3244 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | |
3245 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
3246 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
3247 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
5aa5bd14 DB |
3248 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
3249 | BPF_FUNC_map_lookup_elem), | |
48461135 JB |
3250 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4), |
3251 | BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 0), | |
3252 | BPF_ALU64_IMM(BPF_LSH, BPF_REG_1, 2), | |
3253 | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), | |
5aa5bd14 DB |
3254 | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, |
3255 | offsetof(struct test_val, foo)), | |
48461135 JB |
3256 | BPF_EXIT_INSN(), |
3257 | }, | |
5aa5bd14 DB |
3258 | .fixup_map2 = { 3 }, |
3259 | .errstr_unpriv = "R0 pointer arithmetic prohibited", | |
48461135 | 3260 | .errstr = "R0 min value is negative, either use unsigned index or do a if (index >=0) check.", |
5aa5bd14 | 3261 | .result_unpriv = REJECT, |
48461135 | 3262 | .result = REJECT, |
02ea80b1 | 3263 | .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, |
48461135 JB |
3264 | }, |
3265 | { | |
3266 | "invalid map access into an array with no floor check", | |
3267 | .insns = { | |
3268 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | |
3269 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
3270 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
3271 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
5aa5bd14 DB |
3272 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
3273 | BPF_FUNC_map_lookup_elem), | |
48461135 JB |
3274 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7), |
3275 | BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 0), | |
3276 | BPF_MOV32_IMM(BPF_REG_2, MAX_ENTRIES), | |
3277 | BPF_JMP_REG(BPF_JSGT, BPF_REG_2, BPF_REG_1, 1), | |
3278 | BPF_MOV32_IMM(BPF_REG_1, 0), | |
3279 | BPF_ALU32_IMM(BPF_LSH, BPF_REG_1, 2), | |
3280 | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), | |
5aa5bd14 DB |
3281 | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, |
3282 | offsetof(struct test_val, foo)), | |
48461135 JB |
3283 | BPF_EXIT_INSN(), |
3284 | }, | |
5aa5bd14 DB |
3285 | .fixup_map2 = { 3 }, |
3286 | .errstr_unpriv = "R0 pointer arithmetic prohibited", | |
48461135 | 3287 | .errstr = "R0 min value is negative, either use unsigned index or do a if (index >=0) check.", |
5aa5bd14 | 3288 | .result_unpriv = REJECT, |
48461135 | 3289 | .result = REJECT, |
02ea80b1 | 3290 | .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, |
48461135 JB |
3291 | }, |
3292 | { | |
3293 | "invalid map access into an array with a invalid max check", | |
3294 | .insns = { | |
3295 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | |
3296 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
3297 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
3298 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
5aa5bd14 DB |
3299 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
3300 | BPF_FUNC_map_lookup_elem), | |
48461135 JB |
3301 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7), |
3302 | BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 0), | |
3303 | BPF_MOV32_IMM(BPF_REG_2, MAX_ENTRIES + 1), | |
3304 | BPF_JMP_REG(BPF_JGT, BPF_REG_2, BPF_REG_1, 1), | |
3305 | BPF_MOV32_IMM(BPF_REG_1, 0), | |
3306 | BPF_ALU32_IMM(BPF_LSH, BPF_REG_1, 2), | |
3307 | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), | |
5aa5bd14 DB |
3308 | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, |
3309 | offsetof(struct test_val, foo)), | |
48461135 JB |
3310 | BPF_EXIT_INSN(), |
3311 | }, | |
5aa5bd14 DB |
3312 | .fixup_map2 = { 3 }, |
3313 | .errstr_unpriv = "R0 pointer arithmetic prohibited", | |
48461135 | 3314 | .errstr = "invalid access to map value, value_size=48 off=44 size=8", |
5aa5bd14 | 3315 | .result_unpriv = REJECT, |
48461135 | 3316 | .result = REJECT, |
02ea80b1 | 3317 | .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, |
48461135 JB |
3318 | }, |
3319 | { | |
3320 | "invalid map access into an array with a invalid max check", | |
3321 | .insns = { | |
3322 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | |
3323 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
3324 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
3325 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
5aa5bd14 DB |
3326 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
3327 | BPF_FUNC_map_lookup_elem), | |
48461135 JB |
3328 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 10), |
3329 | BPF_MOV64_REG(BPF_REG_8, BPF_REG_0), | |
3330 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | |
3331 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
3332 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
3333 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
5aa5bd14 DB |
3334 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
3335 | BPF_FUNC_map_lookup_elem), | |
48461135 JB |
3336 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 2), |
3337 | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_8), | |
5aa5bd14 DB |
3338 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0, |
3339 | offsetof(struct test_val, foo)), | |
48461135 JB |
3340 | BPF_EXIT_INSN(), |
3341 | }, | |
5aa5bd14 DB |
3342 | .fixup_map2 = { 3, 11 }, |
3343 | .errstr_unpriv = "R0 pointer arithmetic prohibited", | |
48461135 | 3344 | .errstr = "R0 min value is negative, either use unsigned index or do a if (index >=0) check.", |
5aa5bd14 | 3345 | .result_unpriv = REJECT, |
48461135 | 3346 | .result = REJECT, |
02ea80b1 | 3347 | .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, |
48461135 | 3348 | }, |
57a09bf0 TG |
3349 | { |
3350 | "multiple registers share map_lookup_elem result", | |
3351 | .insns = { | |
3352 | BPF_MOV64_IMM(BPF_REG_1, 10), | |
3353 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_1, -8), | |
3354 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
3355 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
3356 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
3357 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
3358 | BPF_FUNC_map_lookup_elem), | |
3359 | BPF_MOV64_REG(BPF_REG_4, BPF_REG_0), | |
3360 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1), | |
3361 | BPF_ST_MEM(BPF_DW, BPF_REG_4, 0, 0), | |
3362 | BPF_EXIT_INSN(), | |
3363 | }, | |
3364 | .fixup_map1 = { 4 }, | |
3365 | .result = ACCEPT, | |
3366 | .prog_type = BPF_PROG_TYPE_SCHED_CLS | |
3367 | }, | |
614d0d77 DB |
3368 | { |
3369 | "alu ops on ptr_to_map_value_or_null, 1", | |
3370 | .insns = { | |
3371 | BPF_MOV64_IMM(BPF_REG_1, 10), | |
3372 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_1, -8), | |
3373 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
3374 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
3375 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
3376 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
3377 | BPF_FUNC_map_lookup_elem), | |
3378 | BPF_MOV64_REG(BPF_REG_4, BPF_REG_0), | |
3379 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, -2), | |
3380 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 2), | |
3381 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1), | |
3382 | BPF_ST_MEM(BPF_DW, BPF_REG_4, 0, 0), | |
3383 | BPF_EXIT_INSN(), | |
3384 | }, | |
3385 | .fixup_map1 = { 4 }, | |
3386 | .errstr = "R4 invalid mem access", | |
3387 | .result = REJECT, | |
3388 | .prog_type = BPF_PROG_TYPE_SCHED_CLS | |
3389 | }, | |
3390 | { | |
3391 | "alu ops on ptr_to_map_value_or_null, 2", | |
3392 | .insns = { | |
3393 | BPF_MOV64_IMM(BPF_REG_1, 10), | |
3394 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_1, -8), | |
3395 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
3396 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
3397 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
3398 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
3399 | BPF_FUNC_map_lookup_elem), | |
3400 | BPF_MOV64_REG(BPF_REG_4, BPF_REG_0), | |
3401 | BPF_ALU64_IMM(BPF_AND, BPF_REG_4, -1), | |
3402 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1), | |
3403 | BPF_ST_MEM(BPF_DW, BPF_REG_4, 0, 0), | |
3404 | BPF_EXIT_INSN(), | |
3405 | }, | |
3406 | .fixup_map1 = { 4 }, | |
3407 | .errstr = "R4 invalid mem access", | |
3408 | .result = REJECT, | |
3409 | .prog_type = BPF_PROG_TYPE_SCHED_CLS | |
3410 | }, | |
3411 | { | |
3412 | "alu ops on ptr_to_map_value_or_null, 3", | |
3413 | .insns = { | |
3414 | BPF_MOV64_IMM(BPF_REG_1, 10), | |
3415 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_1, -8), | |
3416 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
3417 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
3418 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
3419 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
3420 | BPF_FUNC_map_lookup_elem), | |
3421 | BPF_MOV64_REG(BPF_REG_4, BPF_REG_0), | |
3422 | BPF_ALU64_IMM(BPF_LSH, BPF_REG_4, 1), | |
3423 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1), | |
3424 | BPF_ST_MEM(BPF_DW, BPF_REG_4, 0, 0), | |
3425 | BPF_EXIT_INSN(), | |
3426 | }, | |
3427 | .fixup_map1 = { 4 }, | |
3428 | .errstr = "R4 invalid mem access", | |
3429 | .result = REJECT, | |
3430 | .prog_type = BPF_PROG_TYPE_SCHED_CLS | |
3431 | }, | |
57a09bf0 TG |
3432 | { |
3433 | "invalid memory access with multiple map_lookup_elem calls", | |
3434 | .insns = { | |
3435 | BPF_MOV64_IMM(BPF_REG_1, 10), | |
3436 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_1, -8), | |
3437 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
3438 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
3439 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
3440 | BPF_MOV64_REG(BPF_REG_8, BPF_REG_1), | |
3441 | BPF_MOV64_REG(BPF_REG_7, BPF_REG_2), | |
3442 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
3443 | BPF_FUNC_map_lookup_elem), | |
3444 | BPF_MOV64_REG(BPF_REG_4, BPF_REG_0), | |
3445 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_8), | |
3446 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_7), | |
3447 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
3448 | BPF_FUNC_map_lookup_elem), | |
3449 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1), | |
3450 | BPF_ST_MEM(BPF_DW, BPF_REG_4, 0, 0), | |
3451 | BPF_EXIT_INSN(), | |
3452 | }, | |
3453 | .fixup_map1 = { 4 }, | |
3454 | .result = REJECT, | |
3455 | .errstr = "R4 !read_ok", | |
3456 | .prog_type = BPF_PROG_TYPE_SCHED_CLS | |
3457 | }, | |
3458 | { | |
3459 | "valid indirect map_lookup_elem access with 2nd lookup in branch", | |
3460 | .insns = { | |
3461 | BPF_MOV64_IMM(BPF_REG_1, 10), | |
3462 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_1, -8), | |
3463 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
3464 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
3465 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
3466 | BPF_MOV64_REG(BPF_REG_8, BPF_REG_1), | |
3467 | BPF_MOV64_REG(BPF_REG_7, BPF_REG_2), | |
3468 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
3469 | BPF_FUNC_map_lookup_elem), | |
3470 | BPF_MOV64_IMM(BPF_REG_2, 10), | |
3471 | BPF_JMP_IMM(BPF_JNE, BPF_REG_2, 0, 3), | |
3472 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_8), | |
3473 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_7), | |
3474 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
3475 | BPF_FUNC_map_lookup_elem), | |
3476 | BPF_MOV64_REG(BPF_REG_4, BPF_REG_0), | |
3477 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1), | |
3478 | BPF_ST_MEM(BPF_DW, BPF_REG_4, 0, 0), | |
3479 | BPF_EXIT_INSN(), | |
3480 | }, | |
3481 | .fixup_map1 = { 4 }, | |
3482 | .result = ACCEPT, | |
3483 | .prog_type = BPF_PROG_TYPE_SCHED_CLS | |
3484 | }, | |
a08dd0da DB |
3485 | { |
3486 | "multiple registers share map_lookup_elem bad reg type", | |
3487 | .insns = { | |
3488 | BPF_MOV64_IMM(BPF_REG_1, 10), | |
3489 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_1, -8), | |
3490 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
3491 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
3492 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
3493 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
3494 | BPF_FUNC_map_lookup_elem), | |
3495 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_0), | |
3496 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_0), | |
3497 | BPF_MOV64_REG(BPF_REG_4, BPF_REG_0), | |
3498 | BPF_MOV64_REG(BPF_REG_5, BPF_REG_0), | |
3499 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1), | |
3500 | BPF_MOV64_IMM(BPF_REG_1, 1), | |
3501 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1), | |
3502 | BPF_MOV64_IMM(BPF_REG_1, 2), | |
3503 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_3, 0, 1), | |
3504 | BPF_ST_MEM(BPF_DW, BPF_REG_3, 0, 0), | |
3505 | BPF_MOV64_IMM(BPF_REG_1, 3), | |
3506 | BPF_EXIT_INSN(), | |
3507 | }, | |
3508 | .fixup_map1 = { 4 }, | |
3509 | .result = REJECT, | |
3510 | .errstr = "R3 invalid mem access 'inv'", | |
3511 | .prog_type = BPF_PROG_TYPE_SCHED_CLS | |
3512 | }, | |
e9548901 JB |
3513 | { |
3514 | "invalid map access from else condition", | |
3515 | .insns = { | |
3516 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | |
3517 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
3518 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
3519 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
3520 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem), | |
3521 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6), | |
3522 | BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 0), | |
3523 | BPF_JMP_IMM(BPF_JGE, BPF_REG_1, MAX_ENTRIES-1, 1), | |
3524 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 1), | |
3525 | BPF_ALU64_IMM(BPF_LSH, BPF_REG_1, 2), | |
3526 | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), | |
3527 | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, offsetof(struct test_val, foo)), | |
3528 | BPF_EXIT_INSN(), | |
3529 | }, | |
3530 | .fixup_map2 = { 3 }, | |
3531 | .errstr = "R0 unbounded memory access, make sure to bounds check any array access into a map", | |
3532 | .result = REJECT, | |
3533 | .errstr_unpriv = "R0 pointer arithmetic prohibited", | |
3534 | .result_unpriv = REJECT, | |
02ea80b1 | 3535 | .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, |
e9548901 | 3536 | }, |
3c839744 GB |
3537 | { |
3538 | "constant register |= constant should keep constant type", | |
3539 | .insns = { | |
3540 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
3541 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -48), | |
3542 | BPF_MOV64_IMM(BPF_REG_2, 34), | |
3543 | BPF_ALU64_IMM(BPF_OR, BPF_REG_2, 13), | |
3544 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
3545 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
3546 | BPF_EXIT_INSN(), | |
3547 | }, | |
3548 | .result = ACCEPT, | |
3549 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
3550 | }, | |
3551 | { | |
3552 | "constant register |= constant should not bypass stack boundary checks", | |
3553 | .insns = { | |
3554 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
3555 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -48), | |
3556 | BPF_MOV64_IMM(BPF_REG_2, 34), | |
3557 | BPF_ALU64_IMM(BPF_OR, BPF_REG_2, 24), | |
3558 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
3559 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
3560 | BPF_EXIT_INSN(), | |
3561 | }, | |
3562 | .errstr = "invalid stack type R1 off=-48 access_size=58", | |
3563 | .result = REJECT, | |
3564 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
3565 | }, | |
3566 | { | |
3567 | "constant register |= constant register should keep constant type", | |
3568 | .insns = { | |
3569 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
3570 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -48), | |
3571 | BPF_MOV64_IMM(BPF_REG_2, 34), | |
3572 | BPF_MOV64_IMM(BPF_REG_4, 13), | |
3573 | BPF_ALU64_REG(BPF_OR, BPF_REG_2, BPF_REG_4), | |
3574 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
3575 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
3576 | BPF_EXIT_INSN(), | |
3577 | }, | |
3578 | .result = ACCEPT, | |
3579 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
3580 | }, | |
3581 | { | |
3582 | "constant register |= constant register should not bypass stack boundary checks", | |
3583 | .insns = { | |
3584 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
3585 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -48), | |
3586 | BPF_MOV64_IMM(BPF_REG_2, 34), | |
3587 | BPF_MOV64_IMM(BPF_REG_4, 24), | |
3588 | BPF_ALU64_REG(BPF_OR, BPF_REG_2, BPF_REG_4), | |
3589 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
3590 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
3591 | BPF_EXIT_INSN(), | |
3592 | }, | |
3593 | .errstr = "invalid stack type R1 off=-48 access_size=58", | |
3594 | .result = REJECT, | |
3595 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
3596 | }, | |
3f731d89 TG |
3597 | { |
3598 | "invalid direct packet write for LWT_IN", | |
3599 | .insns = { | |
3600 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
3601 | offsetof(struct __sk_buff, data)), | |
3602 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
3603 | offsetof(struct __sk_buff, data_end)), | |
3604 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | |
3605 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), | |
3606 | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1), | |
3607 | BPF_STX_MEM(BPF_B, BPF_REG_2, BPF_REG_2, 0), | |
3608 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
3609 | BPF_EXIT_INSN(), | |
3610 | }, | |
3611 | .errstr = "cannot write into packet", | |
3612 | .result = REJECT, | |
3613 | .prog_type = BPF_PROG_TYPE_LWT_IN, | |
3614 | }, | |
3615 | { | |
3616 | "invalid direct packet write for LWT_OUT", | |
3617 | .insns = { | |
3618 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
3619 | offsetof(struct __sk_buff, data)), | |
3620 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
3621 | offsetof(struct __sk_buff, data_end)), | |
3622 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | |
3623 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), | |
3624 | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1), | |
3625 | BPF_STX_MEM(BPF_B, BPF_REG_2, BPF_REG_2, 0), | |
3626 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
3627 | BPF_EXIT_INSN(), | |
3628 | }, | |
3629 | .errstr = "cannot write into packet", | |
3630 | .result = REJECT, | |
3631 | .prog_type = BPF_PROG_TYPE_LWT_OUT, | |
3632 | }, | |
3633 | { | |
3634 | "direct packet write for LWT_XMIT", | |
3635 | .insns = { | |
3636 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
3637 | offsetof(struct __sk_buff, data)), | |
3638 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
3639 | offsetof(struct __sk_buff, data_end)), | |
3640 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | |
3641 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), | |
3642 | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1), | |
3643 | BPF_STX_MEM(BPF_B, BPF_REG_2, BPF_REG_2, 0), | |
3644 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
3645 | BPF_EXIT_INSN(), | |
3646 | }, | |
3647 | .result = ACCEPT, | |
3648 | .prog_type = BPF_PROG_TYPE_LWT_XMIT, | |
3649 | }, | |
3650 | { | |
3651 | "direct packet read for LWT_IN", | |
3652 | .insns = { | |
3653 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
3654 | offsetof(struct __sk_buff, data)), | |
3655 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
3656 | offsetof(struct __sk_buff, data_end)), | |
3657 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | |
3658 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), | |
3659 | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1), | |
3660 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0), | |
3661 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
3662 | BPF_EXIT_INSN(), | |
3663 | }, | |
3664 | .result = ACCEPT, | |
3665 | .prog_type = BPF_PROG_TYPE_LWT_IN, | |
3666 | }, | |
3667 | { | |
3668 | "direct packet read for LWT_OUT", | |
3669 | .insns = { | |
3670 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
3671 | offsetof(struct __sk_buff, data)), | |
3672 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
3673 | offsetof(struct __sk_buff, data_end)), | |
3674 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | |
3675 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), | |
3676 | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1), | |
3677 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0), | |
3678 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
3679 | BPF_EXIT_INSN(), | |
3680 | }, | |
3681 | .result = ACCEPT, | |
3682 | .prog_type = BPF_PROG_TYPE_LWT_OUT, | |
3683 | }, | |
3684 | { | |
3685 | "direct packet read for LWT_XMIT", | |
3686 | .insns = { | |
3687 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
3688 | offsetof(struct __sk_buff, data)), | |
3689 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
3690 | offsetof(struct __sk_buff, data_end)), | |
3691 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | |
3692 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), | |
3693 | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1), | |
3694 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0), | |
3695 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
3696 | BPF_EXIT_INSN(), | |
3697 | }, | |
3698 | .result = ACCEPT, | |
3699 | .prog_type = BPF_PROG_TYPE_LWT_XMIT, | |
3700 | }, | |
b1977682 AS |
3701 | { |
3702 | "overlapping checks for direct packet access", | |
3703 | .insns = { | |
3704 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
3705 | offsetof(struct __sk_buff, data)), | |
3706 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
3707 | offsetof(struct __sk_buff, data_end)), | |
3708 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | |
3709 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), | |
3710 | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 4), | |
3711 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_2), | |
3712 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 6), | |
3713 | BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_3, 1), | |
3714 | BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_2, 6), | |
3715 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
3716 | BPF_EXIT_INSN(), | |
3f731d89 TG |
3717 | }, |
3718 | .result = ACCEPT, | |
3719 | .prog_type = BPF_PROG_TYPE_LWT_XMIT, | |
3720 | }, | |
3721 | { | |
3722 | "invalid access of tc_classid for LWT_IN", | |
3723 | .insns = { | |
3724 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
3725 | offsetof(struct __sk_buff, tc_classid)), | |
3726 | BPF_EXIT_INSN(), | |
3727 | }, | |
3728 | .result = REJECT, | |
3729 | .errstr = "invalid bpf_context access", | |
3730 | }, | |
3731 | { | |
3732 | "invalid access of tc_classid for LWT_OUT", | |
3733 | .insns = { | |
3734 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
3735 | offsetof(struct __sk_buff, tc_classid)), | |
3736 | BPF_EXIT_INSN(), | |
3737 | }, | |
3738 | .result = REJECT, | |
3739 | .errstr = "invalid bpf_context access", | |
3740 | }, | |
3741 | { | |
3742 | "invalid access of tc_classid for LWT_XMIT", | |
3743 | .insns = { | |
3744 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
3745 | offsetof(struct __sk_buff, tc_classid)), | |
3746 | BPF_EXIT_INSN(), | |
3747 | }, | |
3748 | .result = REJECT, | |
3749 | .errstr = "invalid bpf_context access", | |
3750 | }, | |
5722569b GB |
3751 | { |
3752 | "helper access to map: full range", | |
3753 | .insns = { | |
3754 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
3755 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
3756 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
3757 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
3758 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
3759 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4), | |
3760 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
3761 | BPF_MOV64_IMM(BPF_REG_2, sizeof(struct test_val)), | |
3762 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
3763 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
3764 | BPF_EXIT_INSN(), | |
3765 | }, | |
3766 | .fixup_map2 = { 3 }, | |
3767 | .result = ACCEPT, | |
3768 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
3769 | }, | |
3770 | { | |
3771 | "helper access to map: partial range", | |
3772 | .insns = { | |
3773 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
3774 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
3775 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
3776 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
3777 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
3778 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4), | |
3779 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
3780 | BPF_MOV64_IMM(BPF_REG_2, 8), | |
3781 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
3782 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
3783 | BPF_EXIT_INSN(), | |
3784 | }, | |
3785 | .fixup_map2 = { 3 }, | |
3786 | .result = ACCEPT, | |
3787 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
3788 | }, | |
3789 | { | |
3790 | "helper access to map: empty range", | |
3791 | .insns = { | |
3792 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
3793 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
3794 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
3795 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
3796 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
3797 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4), | |
3798 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
3799 | BPF_MOV64_IMM(BPF_REG_2, 0), | |
3800 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
3801 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
3802 | BPF_EXIT_INSN(), | |
3803 | }, | |
3804 | .fixup_map2 = { 3 }, | |
3805 | .errstr = "invalid access to map value, value_size=48 off=0 size=0", | |
3806 | .result = REJECT, | |
3807 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
3808 | }, | |
3809 | { | |
3810 | "helper access to map: out-of-bound range", | |
3811 | .insns = { | |
3812 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
3813 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
3814 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
3815 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
3816 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
3817 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4), | |
3818 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
3819 | BPF_MOV64_IMM(BPF_REG_2, sizeof(struct test_val) + 8), | |
3820 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
3821 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
3822 | BPF_EXIT_INSN(), | |
3823 | }, | |
3824 | .fixup_map2 = { 3 }, | |
3825 | .errstr = "invalid access to map value, value_size=48 off=0 size=56", | |
3826 | .result = REJECT, | |
3827 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
3828 | }, | |
3829 | { | |
3830 | "helper access to map: negative range", | |
3831 | .insns = { | |
3832 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
3833 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
3834 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
3835 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
3836 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
3837 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4), | |
3838 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
3839 | BPF_MOV64_IMM(BPF_REG_2, -8), | |
3840 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
3841 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
3842 | BPF_EXIT_INSN(), | |
3843 | }, | |
3844 | .fixup_map2 = { 3 }, | |
3845 | .errstr = "invalid access to map value, value_size=48 off=0 size=-8", | |
3846 | .result = REJECT, | |
3847 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
3848 | }, | |
3849 | { | |
3850 | "helper access to adjusted map (via const imm): full range", | |
3851 | .insns = { | |
3852 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
3853 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
3854 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
3855 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
3856 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
3857 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 5), | |
3858 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
3859 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, | |
3860 | offsetof(struct test_val, foo)), | |
3861 | BPF_MOV64_IMM(BPF_REG_2, | |
3862 | sizeof(struct test_val) - | |
3863 | offsetof(struct test_val, foo)), | |
3864 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
3865 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
3866 | BPF_EXIT_INSN(), | |
3867 | }, | |
3868 | .fixup_map2 = { 3 }, | |
3869 | .result = ACCEPT, | |
3870 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
3871 | }, | |
3872 | { | |
3873 | "helper access to adjusted map (via const imm): partial range", | |
3874 | .insns = { | |
3875 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
3876 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
3877 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
3878 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
3879 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
3880 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 5), | |
3881 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
3882 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, | |
3883 | offsetof(struct test_val, foo)), | |
3884 | BPF_MOV64_IMM(BPF_REG_2, 8), | |
3885 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
3886 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
3887 | BPF_EXIT_INSN(), | |
3888 | }, | |
3889 | .fixup_map2 = { 3 }, | |
3890 | .result = ACCEPT, | |
3891 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
3892 | }, | |
3893 | { | |
3894 | "helper access to adjusted map (via const imm): empty range", | |
3895 | .insns = { | |
3896 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
3897 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
3898 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
3899 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
3900 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
3901 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 5), | |
3902 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
3903 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, | |
3904 | offsetof(struct test_val, foo)), | |
3905 | BPF_MOV64_IMM(BPF_REG_2, 0), | |
3906 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
3907 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
3908 | BPF_EXIT_INSN(), | |
3909 | }, | |
3910 | .fixup_map2 = { 3 }, | |
3911 | .errstr = "R1 min value is outside of the array range", | |
3912 | .result = REJECT, | |
3913 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
3914 | }, | |
3915 | { | |
3916 | "helper access to adjusted map (via const imm): out-of-bound range", | |
3917 | .insns = { | |
3918 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
3919 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
3920 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
3921 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
3922 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
3923 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 5), | |
3924 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
3925 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, | |
3926 | offsetof(struct test_val, foo)), | |
3927 | BPF_MOV64_IMM(BPF_REG_2, | |
3928 | sizeof(struct test_val) - | |
3929 | offsetof(struct test_val, foo) + 8), | |
3930 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
3931 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
3932 | BPF_EXIT_INSN(), | |
3933 | }, | |
3934 | .fixup_map2 = { 3 }, | |
3935 | .errstr = "invalid access to map value, value_size=48 off=4 size=52", | |
3936 | .result = REJECT, | |
3937 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
3938 | }, | |
3939 | { | |
3940 | "helper access to adjusted map (via const imm): negative range (> adjustment)", | |
3941 | .insns = { | |
3942 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
3943 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
3944 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
3945 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
3946 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
3947 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 5), | |
3948 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
3949 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, | |
3950 | offsetof(struct test_val, foo)), | |
3951 | BPF_MOV64_IMM(BPF_REG_2, -8), | |
3952 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
3953 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
3954 | BPF_EXIT_INSN(), | |
3955 | }, | |
3956 | .fixup_map2 = { 3 }, | |
3957 | .errstr = "invalid access to map value, value_size=48 off=4 size=-8", | |
3958 | .result = REJECT, | |
3959 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
3960 | }, | |
3961 | { | |
3962 | "helper access to adjusted map (via const imm): negative range (< adjustment)", | |
3963 | .insns = { | |
3964 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
3965 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
3966 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
3967 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
3968 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
3969 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 5), | |
3970 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
3971 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, | |
3972 | offsetof(struct test_val, foo)), | |
3973 | BPF_MOV64_IMM(BPF_REG_2, -1), | |
3974 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
3975 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
3976 | BPF_EXIT_INSN(), | |
3977 | }, | |
3978 | .fixup_map2 = { 3 }, | |
3979 | .errstr = "R1 min value is outside of the array range", | |
3980 | .result = REJECT, | |
3981 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
3982 | }, | |
3983 | { | |
3984 | "helper access to adjusted map (via const reg): full range", | |
3985 | .insns = { | |
3986 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
3987 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
3988 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
3989 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
3990 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
3991 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6), | |
3992 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
3993 | BPF_MOV64_IMM(BPF_REG_3, | |
3994 | offsetof(struct test_val, foo)), | |
3995 | BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), | |
3996 | BPF_MOV64_IMM(BPF_REG_2, | |
3997 | sizeof(struct test_val) - | |
3998 | offsetof(struct test_val, foo)), | |
3999 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
4000 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
4001 | BPF_EXIT_INSN(), | |
4002 | }, | |
4003 | .fixup_map2 = { 3 }, | |
4004 | .result = ACCEPT, | |
4005 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
4006 | }, | |
4007 | { | |
4008 | "helper access to adjusted map (via const reg): partial range", | |
4009 | .insns = { | |
4010 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
4011 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
4012 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
4013 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
4014 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
4015 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6), | |
4016 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
4017 | BPF_MOV64_IMM(BPF_REG_3, | |
4018 | offsetof(struct test_val, foo)), | |
4019 | BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), | |
4020 | BPF_MOV64_IMM(BPF_REG_2, 8), | |
4021 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
4022 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
4023 | BPF_EXIT_INSN(), | |
4024 | }, | |
4025 | .fixup_map2 = { 3 }, | |
4026 | .result = ACCEPT, | |
4027 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
4028 | }, | |
4029 | { | |
4030 | "helper access to adjusted map (via const reg): empty range", | |
4031 | .insns = { | |
4032 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
4033 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
4034 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
4035 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
4036 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
4037 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6), | |
4038 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
4039 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
4040 | BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), | |
4041 | BPF_MOV64_IMM(BPF_REG_2, 0), | |
4042 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
4043 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
4044 | BPF_EXIT_INSN(), | |
4045 | }, | |
4046 | .fixup_map2 = { 3 }, | |
4047 | .errstr = "R1 min value is outside of the array range", | |
4048 | .result = REJECT, | |
4049 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
4050 | }, | |
4051 | { | |
4052 | "helper access to adjusted map (via const reg): out-of-bound range", | |
4053 | .insns = { | |
4054 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
4055 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
4056 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
4057 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
4058 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
4059 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6), | |
4060 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
4061 | BPF_MOV64_IMM(BPF_REG_3, | |
4062 | offsetof(struct test_val, foo)), | |
4063 | BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), | |
4064 | BPF_MOV64_IMM(BPF_REG_2, | |
4065 | sizeof(struct test_val) - | |
4066 | offsetof(struct test_val, foo) + 8), | |
4067 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
4068 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
4069 | BPF_EXIT_INSN(), | |
4070 | }, | |
4071 | .fixup_map2 = { 3 }, | |
4072 | .errstr = "invalid access to map value, value_size=48 off=4 size=52", | |
4073 | .result = REJECT, | |
4074 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
4075 | }, | |
4076 | { | |
4077 | "helper access to adjusted map (via const reg): negative range (> adjustment)", | |
4078 | .insns = { | |
4079 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
4080 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
4081 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
4082 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
4083 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
4084 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6), | |
4085 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
4086 | BPF_MOV64_IMM(BPF_REG_3, | |
4087 | offsetof(struct test_val, foo)), | |
4088 | BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), | |
4089 | BPF_MOV64_IMM(BPF_REG_2, -8), | |
4090 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
4091 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
4092 | BPF_EXIT_INSN(), | |
4093 | }, | |
4094 | .fixup_map2 = { 3 }, | |
4095 | .errstr = "invalid access to map value, value_size=48 off=4 size=-8", | |
4096 | .result = REJECT, | |
4097 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
4098 | }, | |
4099 | { | |
4100 | "helper access to adjusted map (via const reg): negative range (< adjustment)", | |
4101 | .insns = { | |
4102 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
4103 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
4104 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
4105 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
4106 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
4107 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6), | |
4108 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
4109 | BPF_MOV64_IMM(BPF_REG_3, | |
4110 | offsetof(struct test_val, foo)), | |
4111 | BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), | |
4112 | BPF_MOV64_IMM(BPF_REG_2, -1), | |
4113 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
4114 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
4115 | BPF_EXIT_INSN(), | |
4116 | }, | |
4117 | .fixup_map2 = { 3 }, | |
4118 | .errstr = "R1 min value is outside of the array range", | |
4119 | .result = REJECT, | |
4120 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
4121 | }, | |
4122 | { | |
4123 | "helper access to adjusted map (via variable): full range", | |
4124 | .insns = { | |
4125 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
4126 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
4127 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
4128 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
4129 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
4130 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7), | |
4131 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
4132 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_0, 0), | |
4133 | BPF_JMP_IMM(BPF_JGT, BPF_REG_3, | |
4134 | offsetof(struct test_val, foo), 4), | |
4135 | BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), | |
4136 | BPF_MOV64_IMM(BPF_REG_2, | |
4137 | sizeof(struct test_val) - | |
4138 | offsetof(struct test_val, foo)), | |
4139 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
4140 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
4141 | BPF_EXIT_INSN(), | |
4142 | }, | |
4143 | .fixup_map2 = { 3 }, | |
4144 | .result = ACCEPT, | |
4145 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
4146 | }, | |
4147 | { | |
4148 | "helper access to adjusted map (via variable): partial range", | |
4149 | .insns = { | |
4150 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
4151 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
4152 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
4153 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
4154 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
4155 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7), | |
4156 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
4157 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_0, 0), | |
4158 | BPF_JMP_IMM(BPF_JGT, BPF_REG_3, | |
4159 | offsetof(struct test_val, foo), 4), | |
4160 | BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), | |
4161 | BPF_MOV64_IMM(BPF_REG_2, 8), | |
4162 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
4163 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
4164 | BPF_EXIT_INSN(), | |
4165 | }, | |
4166 | .fixup_map2 = { 3 }, | |
4167 | .result = ACCEPT, | |
4168 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
4169 | }, | |
4170 | { | |
4171 | "helper access to adjusted map (via variable): empty range", | |
4172 | .insns = { | |
4173 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
4174 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
4175 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
4176 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
4177 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
4178 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7), | |
4179 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
4180 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_0, 0), | |
4181 | BPF_JMP_IMM(BPF_JGT, BPF_REG_3, | |
4182 | offsetof(struct test_val, foo), 4), | |
4183 | BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), | |
4184 | BPF_MOV64_IMM(BPF_REG_2, 0), | |
4185 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
4186 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
4187 | BPF_EXIT_INSN(), | |
4188 | }, | |
4189 | .fixup_map2 = { 3 }, | |
4190 | .errstr = "R1 min value is outside of the array range", | |
4191 | .result = REJECT, | |
4192 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
4193 | }, | |
4194 | { | |
4195 | "helper access to adjusted map (via variable): no max check", | |
4196 | .insns = { | |
4197 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
4198 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
4199 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
4200 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
4201 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
4202 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6), | |
4203 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
4204 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_0, 0), | |
4205 | BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), | |
4206 | BPF_MOV64_IMM(BPF_REG_2, 0), | |
4207 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
4208 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
4209 | BPF_EXIT_INSN(), | |
4210 | }, | |
4211 | .fixup_map2 = { 3 }, | |
4212 | .errstr = "R1 min value is negative, either use unsigned index or do a if (index >=0) check", | |
4213 | .result = REJECT, | |
4214 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
4215 | }, | |
4216 | { | |
4217 | "helper access to adjusted map (via variable): wrong max check", | |
4218 | .insns = { | |
4219 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
4220 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
4221 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
4222 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
4223 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
4224 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7), | |
4225 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
4226 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_0, 0), | |
4227 | BPF_JMP_IMM(BPF_JGT, BPF_REG_3, | |
4228 | offsetof(struct test_val, foo), 4), | |
4229 | BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), | |
4230 | BPF_MOV64_IMM(BPF_REG_2, | |
4231 | sizeof(struct test_val) - | |
4232 | offsetof(struct test_val, foo) + 1), | |
4233 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
4234 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
4235 | BPF_EXIT_INSN(), | |
4236 | }, | |
4237 | .fixup_map2 = { 3 }, | |
4238 | .errstr = "invalid access to map value, value_size=48 off=4 size=45", | |
4239 | .result = REJECT, | |
4240 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
4241 | }, | |
f0318d01 GB |
4242 | { |
4243 | "map element value is preserved across register spilling", | |
4244 | .insns = { | |
4245 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
4246 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
4247 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
4248 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
4249 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
4250 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6), | |
4251 | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 42), | |
4252 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
4253 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -184), | |
4254 | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, 0), | |
4255 | BPF_LDX_MEM(BPF_DW, BPF_REG_3, BPF_REG_1, 0), | |
4256 | BPF_ST_MEM(BPF_DW, BPF_REG_3, 0, 42), | |
4257 | BPF_EXIT_INSN(), | |
4258 | }, | |
4259 | .fixup_map2 = { 3 }, | |
4260 | .errstr_unpriv = "R0 leaks addr", | |
4261 | .result = ACCEPT, | |
4262 | .result_unpriv = REJECT, | |
4263 | }, | |
4264 | { | |
02ea80b1 DB |
4265 | "map element value or null is marked on register spilling", |
4266 | .insns = { | |
4267 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
4268 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
4269 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
4270 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
4271 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
4272 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
4273 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -152), | |
4274 | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, 0), | |
4275 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 2), | |
4276 | BPF_LDX_MEM(BPF_DW, BPF_REG_3, BPF_REG_1, 0), | |
4277 | BPF_ST_MEM(BPF_DW, BPF_REG_3, 0, 42), | |
4278 | BPF_EXIT_INSN(), | |
4279 | }, | |
4280 | .fixup_map2 = { 3 }, | |
4281 | .errstr_unpriv = "R0 leaks addr", | |
4282 | .result = ACCEPT, | |
4283 | .result_unpriv = REJECT, | |
4284 | }, | |
4285 | { | |
4286 | "map element value store of cleared call register", | |
4287 | .insns = { | |
4288 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
4289 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
4290 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
4291 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
4292 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
4293 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1), | |
4294 | BPF_STX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 0), | |
4295 | BPF_EXIT_INSN(), | |
4296 | }, | |
4297 | .fixup_map2 = { 3 }, | |
4298 | .errstr_unpriv = "R1 !read_ok", | |
4299 | .errstr = "R1 !read_ok", | |
4300 | .result = REJECT, | |
4301 | .result_unpriv = REJECT, | |
4302 | }, | |
4303 | { | |
4304 | "map element value with unaligned store", | |
4305 | .insns = { | |
4306 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
4307 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
4308 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
4309 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
4310 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
4311 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 17), | |
4312 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 3), | |
4313 | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 42), | |
4314 | BPF_ST_MEM(BPF_DW, BPF_REG_0, 2, 43), | |
4315 | BPF_ST_MEM(BPF_DW, BPF_REG_0, -2, 44), | |
4316 | BPF_MOV64_REG(BPF_REG_8, BPF_REG_0), | |
4317 | BPF_ST_MEM(BPF_DW, BPF_REG_8, 0, 32), | |
4318 | BPF_ST_MEM(BPF_DW, BPF_REG_8, 2, 33), | |
4319 | BPF_ST_MEM(BPF_DW, BPF_REG_8, -2, 34), | |
4320 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_8, 5), | |
4321 | BPF_ST_MEM(BPF_DW, BPF_REG_8, 0, 22), | |
4322 | BPF_ST_MEM(BPF_DW, BPF_REG_8, 4, 23), | |
4323 | BPF_ST_MEM(BPF_DW, BPF_REG_8, -7, 24), | |
4324 | BPF_MOV64_REG(BPF_REG_7, BPF_REG_8), | |
4325 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_7, 3), | |
4326 | BPF_ST_MEM(BPF_DW, BPF_REG_7, 0, 22), | |
4327 | BPF_ST_MEM(BPF_DW, BPF_REG_7, 4, 23), | |
4328 | BPF_ST_MEM(BPF_DW, BPF_REG_7, -4, 24), | |
4329 | BPF_EXIT_INSN(), | |
4330 | }, | |
4331 | .fixup_map2 = { 3 }, | |
4332 | .errstr_unpriv = "R0 pointer arithmetic prohibited", | |
4333 | .result = ACCEPT, | |
4334 | .result_unpriv = REJECT, | |
4335 | .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, | |
4336 | }, | |
4337 | { | |
4338 | "map element value with unaligned load", | |
4339 | .insns = { | |
4340 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
4341 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
4342 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
4343 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
4344 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
4345 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 11), | |
4346 | BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 0), | |
4347 | BPF_JMP_IMM(BPF_JGE, BPF_REG_1, MAX_ENTRIES, 9), | |
4348 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 3), | |
4349 | BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_0, 0), | |
4350 | BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_0, 2), | |
4351 | BPF_MOV64_REG(BPF_REG_8, BPF_REG_0), | |
4352 | BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_8, 0), | |
4353 | BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_8, 2), | |
4354 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 5), | |
4355 | BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_0, 0), | |
4356 | BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_0, 4), | |
4357 | BPF_EXIT_INSN(), | |
4358 | }, | |
4359 | .fixup_map2 = { 3 }, | |
4360 | .errstr_unpriv = "R0 pointer arithmetic prohibited", | |
4361 | .result = ACCEPT, | |
4362 | .result_unpriv = REJECT, | |
4363 | .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, | |
4364 | }, | |
4365 | { | |
4366 | "map element value illegal alu op, 1", | |
4367 | .insns = { | |
4368 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
4369 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
4370 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
4371 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
4372 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
4373 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 2), | |
4374 | BPF_ALU64_IMM(BPF_AND, BPF_REG_0, 8), | |
4375 | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 22), | |
4376 | BPF_EXIT_INSN(), | |
4377 | }, | |
4378 | .fixup_map2 = { 3 }, | |
4379 | .errstr_unpriv = "R0 pointer arithmetic prohibited", | |
4380 | .errstr = "invalid mem access 'inv'", | |
4381 | .result = REJECT, | |
4382 | .result_unpriv = REJECT, | |
4383 | }, | |
4384 | { | |
4385 | "map element value illegal alu op, 2", | |
4386 | .insns = { | |
4387 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
4388 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
4389 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
4390 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
4391 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
4392 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 2), | |
4393 | BPF_ALU32_IMM(BPF_ADD, BPF_REG_0, 0), | |
4394 | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 22), | |
4395 | BPF_EXIT_INSN(), | |
4396 | }, | |
4397 | .fixup_map2 = { 3 }, | |
4398 | .errstr_unpriv = "R0 pointer arithmetic prohibited", | |
4399 | .errstr = "invalid mem access 'inv'", | |
4400 | .result = REJECT, | |
4401 | .result_unpriv = REJECT, | |
4402 | }, | |
4403 | { | |
4404 | "map element value illegal alu op, 3", | |
4405 | .insns = { | |
4406 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
4407 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
4408 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
4409 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
4410 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
4411 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 2), | |
4412 | BPF_ALU64_IMM(BPF_DIV, BPF_REG_0, 42), | |
4413 | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 22), | |
4414 | BPF_EXIT_INSN(), | |
4415 | }, | |
4416 | .fixup_map2 = { 3 }, | |
4417 | .errstr_unpriv = "R0 pointer arithmetic prohibited", | |
4418 | .errstr = "invalid mem access 'inv'", | |
4419 | .result = REJECT, | |
4420 | .result_unpriv = REJECT, | |
4421 | }, | |
4422 | { | |
4423 | "map element value illegal alu op, 4", | |
4424 | .insns = { | |
4425 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
4426 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
4427 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
4428 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
4429 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
4430 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 2), | |
4431 | BPF_ENDIAN(BPF_FROM_BE, BPF_REG_0, 64), | |
4432 | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 22), | |
4433 | BPF_EXIT_INSN(), | |
4434 | }, | |
4435 | .fixup_map2 = { 3 }, | |
4436 | .errstr_unpriv = "R0 pointer arithmetic prohibited", | |
4437 | .errstr = "invalid mem access 'inv'", | |
4438 | .result = REJECT, | |
4439 | .result_unpriv = REJECT, | |
4440 | }, | |
4441 | { | |
4442 | "map element value illegal alu op, 5", | |
4443 | .insns = { | |
4444 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
4445 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
4446 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
4447 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
4448 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
4449 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7), | |
4450 | BPF_MOV64_IMM(BPF_REG_3, 4096), | |
4451 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
4452 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
4453 | BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_0, 0), | |
4454 | BPF_STX_XADD(BPF_DW, BPF_REG_2, BPF_REG_3, 0), | |
4455 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_2, 0), | |
4456 | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 22), | |
4457 | BPF_EXIT_INSN(), | |
4458 | }, | |
4459 | .fixup_map2 = { 3 }, | |
4460 | .errstr_unpriv = "R0 invalid mem access 'inv'", | |
4461 | .errstr = "R0 invalid mem access 'inv'", | |
4462 | .result = REJECT, | |
4463 | .result_unpriv = REJECT, | |
4464 | }, | |
4465 | { | |
4466 | "map element value is preserved across register spilling", | |
f0318d01 GB |
4467 | .insns = { |
4468 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
4469 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
4470 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
4471 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
4472 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
4473 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7), | |
4474 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, | |
4475 | offsetof(struct test_val, foo)), | |
4476 | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 42), | |
4477 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
4478 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -184), | |
4479 | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, 0), | |
4480 | BPF_LDX_MEM(BPF_DW, BPF_REG_3, BPF_REG_1, 0), | |
4481 | BPF_ST_MEM(BPF_DW, BPF_REG_3, 0, 42), | |
4482 | BPF_EXIT_INSN(), | |
4483 | }, | |
4484 | .fixup_map2 = { 3 }, | |
4485 | .errstr_unpriv = "R0 pointer arithmetic prohibited", | |
4486 | .result = ACCEPT, | |
4487 | .result_unpriv = REJECT, | |
02ea80b1 | 4488 | .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, |
f0318d01 | 4489 | }, |
06c1c049 GB |
4490 | { |
4491 | "helper access to variable memory: stack, bitwise AND + JMP, correct bounds", | |
4492 | .insns = { | |
4493 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
4494 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64), | |
4495 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
4496 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -64), | |
4497 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -56), | |
4498 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -48), | |
4499 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -40), | |
4500 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -32), | |
4501 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -24), | |
4502 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -16), | |
4503 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -8), | |
4504 | BPF_MOV64_IMM(BPF_REG_2, 16), | |
4505 | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, -128), | |
4506 | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128), | |
4507 | BPF_ALU64_IMM(BPF_AND, BPF_REG_2, 64), | |
4508 | BPF_MOV64_IMM(BPF_REG_4, 0), | |
4509 | BPF_JMP_REG(BPF_JGE, BPF_REG_4, BPF_REG_2, 2), | |
4510 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
4511 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
4512 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
4513 | BPF_EXIT_INSN(), | |
4514 | }, | |
4515 | .result = ACCEPT, | |
4516 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
4517 | }, | |
4518 | { | |
4519 | "helper access to variable memory: stack, bitwise AND, zero included", | |
4520 | .insns = { | |
4521 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
4522 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64), | |
4523 | BPF_MOV64_IMM(BPF_REG_2, 16), | |
4524 | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, -128), | |
4525 | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128), | |
4526 | BPF_ALU64_IMM(BPF_AND, BPF_REG_2, 64), | |
4527 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
4528 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
4529 | BPF_EXIT_INSN(), | |
4530 | }, | |
4531 | .errstr = "invalid stack type R1 off=-64 access_size=0", | |
4532 | .result = REJECT, | |
4533 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
4534 | }, | |
4535 | { | |
4536 | "helper access to variable memory: stack, bitwise AND + JMP, wrong max", | |
4537 | .insns = { | |
4538 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
4539 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64), | |
4540 | BPF_MOV64_IMM(BPF_REG_2, 16), | |
4541 | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, -128), | |
4542 | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128), | |
4543 | BPF_ALU64_IMM(BPF_AND, BPF_REG_2, 65), | |
4544 | BPF_MOV64_IMM(BPF_REG_4, 0), | |
4545 | BPF_JMP_REG(BPF_JGE, BPF_REG_4, BPF_REG_2, 2), | |
4546 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
4547 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
4548 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
4549 | BPF_EXIT_INSN(), | |
4550 | }, | |
4551 | .errstr = "invalid stack type R1 off=-64 access_size=65", | |
4552 | .result = REJECT, | |
4553 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
4554 | }, | |
4555 | { | |
4556 | "helper access to variable memory: stack, JMP, correct bounds", | |
4557 | .insns = { | |
4558 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
4559 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64), | |
4560 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
4561 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -64), | |
4562 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -56), | |
4563 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -48), | |
4564 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -40), | |
4565 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -32), | |
4566 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -24), | |
4567 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -16), | |
4568 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -8), | |
4569 | BPF_MOV64_IMM(BPF_REG_2, 16), | |
4570 | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, -128), | |
4571 | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128), | |
4572 | BPF_JMP_IMM(BPF_JGT, BPF_REG_2, 64, 4), | |
4573 | BPF_MOV64_IMM(BPF_REG_4, 0), | |
4574 | BPF_JMP_REG(BPF_JGE, BPF_REG_4, BPF_REG_2, 2), | |
4575 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
4576 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
4577 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
4578 | BPF_EXIT_INSN(), | |
4579 | }, | |
4580 | .result = ACCEPT, | |
4581 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
4582 | }, | |
4583 | { | |
4584 | "helper access to variable memory: stack, JMP (signed), correct bounds", | |
4585 | .insns = { | |
4586 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
4587 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64), | |
4588 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
4589 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -64), | |
4590 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -56), | |
4591 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -48), | |
4592 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -40), | |
4593 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -32), | |
4594 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -24), | |
4595 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -16), | |
4596 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -8), | |
4597 | BPF_MOV64_IMM(BPF_REG_2, 16), | |
4598 | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, -128), | |
4599 | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128), | |
4600 | BPF_JMP_IMM(BPF_JSGT, BPF_REG_2, 64, 4), | |
4601 | BPF_MOV64_IMM(BPF_REG_4, 0), | |
4602 | BPF_JMP_REG(BPF_JSGE, BPF_REG_4, BPF_REG_2, 2), | |
4603 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
4604 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
4605 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
4606 | BPF_EXIT_INSN(), | |
4607 | }, | |
4608 | .result = ACCEPT, | |
4609 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
4610 | }, | |
4611 | { | |
4612 | "helper access to variable memory: stack, JMP, bounds + offset", | |
4613 | .insns = { | |
4614 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
4615 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64), | |
4616 | BPF_MOV64_IMM(BPF_REG_2, 16), | |
4617 | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, -128), | |
4618 | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128), | |
4619 | BPF_JMP_IMM(BPF_JGT, BPF_REG_2, 64, 5), | |
4620 | BPF_MOV64_IMM(BPF_REG_4, 0), | |
4621 | BPF_JMP_REG(BPF_JGE, BPF_REG_4, BPF_REG_2, 3), | |
4622 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 1), | |
4623 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
4624 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
4625 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
4626 | BPF_EXIT_INSN(), | |
4627 | }, | |
4628 | .errstr = "invalid stack type R1 off=-64 access_size=65", | |
4629 | .result = REJECT, | |
4630 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
4631 | }, | |
4632 | { | |
4633 | "helper access to variable memory: stack, JMP, wrong max", | |
4634 | .insns = { | |
4635 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
4636 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64), | |
4637 | BPF_MOV64_IMM(BPF_REG_2, 16), | |
4638 | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, -128), | |
4639 | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128), | |
4640 | BPF_JMP_IMM(BPF_JGT, BPF_REG_2, 65, 4), | |
4641 | BPF_MOV64_IMM(BPF_REG_4, 0), | |
4642 | BPF_JMP_REG(BPF_JGE, BPF_REG_4, BPF_REG_2, 2), | |
4643 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
4644 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
4645 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
4646 | BPF_EXIT_INSN(), | |
4647 | }, | |
4648 | .errstr = "invalid stack type R1 off=-64 access_size=65", | |
4649 | .result = REJECT, | |
4650 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
4651 | }, | |
4652 | { | |
4653 | "helper access to variable memory: stack, JMP, no max check", | |
4654 | .insns = { | |
4655 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
4656 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64), | |
4657 | BPF_MOV64_IMM(BPF_REG_2, 16), | |
4658 | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, -128), | |
4659 | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128), | |
4660 | BPF_MOV64_IMM(BPF_REG_4, 0), | |
4661 | BPF_JMP_REG(BPF_JGE, BPF_REG_4, BPF_REG_2, 2), | |
4662 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
4663 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
4664 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
4665 | BPF_EXIT_INSN(), | |
4666 | }, | |
4667 | .errstr = "R2 unbounded memory access", | |
4668 | .result = REJECT, | |
4669 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
4670 | }, | |
4671 | { | |
4672 | "helper access to variable memory: stack, JMP, no min check", | |
4673 | .insns = { | |
4674 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
4675 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64), | |
4676 | BPF_MOV64_IMM(BPF_REG_2, 16), | |
4677 | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, -128), | |
4678 | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128), | |
4679 | BPF_JMP_IMM(BPF_JGT, BPF_REG_2, 64, 3), | |
4680 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
4681 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
4682 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
4683 | BPF_EXIT_INSN(), | |
4684 | }, | |
4685 | .errstr = "invalid stack type R1 off=-64 access_size=0", | |
4686 | .result = REJECT, | |
4687 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
4688 | }, | |
4689 | { | |
4690 | "helper access to variable memory: stack, JMP (signed), no min check", | |
4691 | .insns = { | |
4692 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
4693 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64), | |
4694 | BPF_MOV64_IMM(BPF_REG_2, 16), | |
4695 | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, -128), | |
4696 | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128), | |
4697 | BPF_JMP_IMM(BPF_JSGT, BPF_REG_2, 64, 3), | |
4698 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
4699 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
4700 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
4701 | BPF_EXIT_INSN(), | |
4702 | }, | |
4703 | .errstr = "R2 min value is negative", | |
4704 | .result = REJECT, | |
4705 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
4706 | }, | |
4707 | { | |
4708 | "helper access to variable memory: map, JMP, correct bounds", | |
4709 | .insns = { | |
4710 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
4711 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
4712 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
4713 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
4714 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
4715 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 10), | |
4716 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
4717 | BPF_MOV64_IMM(BPF_REG_2, sizeof(struct test_val)), | |
4718 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_2, -128), | |
4719 | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_10, -128), | |
4720 | BPF_JMP_IMM(BPF_JSGT, BPF_REG_2, | |
4721 | sizeof(struct test_val), 4), | |
4722 | BPF_MOV64_IMM(BPF_REG_4, 0), | |
4723 | BPF_JMP_REG(BPF_JGE, BPF_REG_4, BPF_REG_2, 2), | |
4724 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
4725 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
4726 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
4727 | BPF_EXIT_INSN(), | |
4728 | }, | |
4729 | .fixup_map2 = { 3 }, | |
4730 | .result = ACCEPT, | |
4731 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
4732 | }, | |
4733 | { | |
4734 | "helper access to variable memory: map, JMP, wrong max", | |
4735 | .insns = { | |
4736 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
4737 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
4738 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
4739 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
4740 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
4741 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 10), | |
4742 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
4743 | BPF_MOV64_IMM(BPF_REG_2, sizeof(struct test_val)), | |
4744 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_2, -128), | |
4745 | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_10, -128), | |
4746 | BPF_JMP_IMM(BPF_JSGT, BPF_REG_2, | |
4747 | sizeof(struct test_val) + 1, 4), | |
4748 | BPF_MOV64_IMM(BPF_REG_4, 0), | |
4749 | BPF_JMP_REG(BPF_JGE, BPF_REG_4, BPF_REG_2, 2), | |
4750 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
4751 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
4752 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
4753 | BPF_EXIT_INSN(), | |
4754 | }, | |
4755 | .fixup_map2 = { 3 }, | |
4756 | .errstr = "invalid access to map value, value_size=48 off=0 size=49", | |
4757 | .result = REJECT, | |
4758 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
4759 | }, | |
4760 | { | |
4761 | "helper access to variable memory: map adjusted, JMP, correct bounds", | |
4762 | .insns = { | |
4763 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
4764 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
4765 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
4766 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
4767 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
4768 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 11), | |
4769 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
4770 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 20), | |
4771 | BPF_MOV64_IMM(BPF_REG_2, sizeof(struct test_val)), | |
4772 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_2, -128), | |
4773 | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_10, -128), | |
4774 | BPF_JMP_IMM(BPF_JSGT, BPF_REG_2, | |
4775 | sizeof(struct test_val) - 20, 4), | |
4776 | BPF_MOV64_IMM(BPF_REG_4, 0), | |
4777 | BPF_JMP_REG(BPF_JGE, BPF_REG_4, BPF_REG_2, 2), | |
4778 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
4779 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
4780 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
4781 | BPF_EXIT_INSN(), | |
4782 | }, | |
4783 | .fixup_map2 = { 3 }, | |
4784 | .result = ACCEPT, | |
4785 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
4786 | }, | |
4787 | { | |
4788 | "helper access to variable memory: map adjusted, JMP, wrong max", | |
4789 | .insns = { | |
4790 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
4791 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
4792 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
4793 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
4794 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
4795 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 11), | |
4796 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
4797 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 20), | |
4798 | BPF_MOV64_IMM(BPF_REG_2, sizeof(struct test_val)), | |
4799 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_2, -128), | |
4800 | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_10, -128), | |
4801 | BPF_JMP_IMM(BPF_JSGT, BPF_REG_2, | |
4802 | sizeof(struct test_val) - 19, 4), | |
4803 | BPF_MOV64_IMM(BPF_REG_4, 0), | |
4804 | BPF_JMP_REG(BPF_JGE, BPF_REG_4, BPF_REG_2, 2), | |
4805 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
4806 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
4807 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
4808 | BPF_EXIT_INSN(), | |
4809 | }, | |
4810 | .fixup_map2 = { 3 }, | |
4811 | .errstr = "R1 min value is outside of the array range", | |
4812 | .result = REJECT, | |
4813 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
4814 | }, | |
4815 | { | |
4816 | "helper access to variable memory: size > 0 not allowed on NULL", | |
4817 | .insns = { | |
4818 | BPF_MOV64_IMM(BPF_REG_1, 0), | |
4819 | BPF_MOV64_IMM(BPF_REG_2, 0), | |
3fadc801 DB |
4820 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_2, -128), |
4821 | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_10, -128), | |
06c1c049 GB |
4822 | BPF_ALU64_IMM(BPF_AND, BPF_REG_2, 64), |
4823 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
4824 | BPF_MOV64_IMM(BPF_REG_4, 0), | |
4825 | BPF_MOV64_IMM(BPF_REG_5, 0), | |
4826 | BPF_EMIT_CALL(BPF_FUNC_csum_diff), | |
4827 | BPF_EXIT_INSN(), | |
4828 | }, | |
4829 | .errstr = "R1 type=imm expected=fp", | |
4830 | .result = REJECT, | |
4831 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
4832 | }, | |
4833 | { | |
4834 | "helper access to variable memory: size = 0 not allowed on != NULL", | |
4835 | .insns = { | |
4836 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
4837 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8), | |
4838 | BPF_MOV64_IMM(BPF_REG_2, 0), | |
4839 | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, 0), | |
4840 | BPF_ALU64_IMM(BPF_AND, BPF_REG_2, 8), | |
4841 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
4842 | BPF_MOV64_IMM(BPF_REG_4, 0), | |
4843 | BPF_MOV64_IMM(BPF_REG_5, 0), | |
4844 | BPF_EMIT_CALL(BPF_FUNC_csum_diff), | |
4845 | BPF_EXIT_INSN(), | |
4846 | }, | |
4847 | .errstr = "invalid stack type R1 off=-8 access_size=0", | |
4848 | .result = REJECT, | |
4849 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
4850 | }, | |
4851 | { | |
4852 | "helper access to variable memory: 8 bytes leak", | |
4853 | .insns = { | |
4854 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
4855 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64), | |
4856 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
4857 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -64), | |
4858 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -56), | |
4859 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -48), | |
4860 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -40), | |
4861 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -24), | |
4862 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -16), | |
4863 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -8), | |
4864 | BPF_MOV64_IMM(BPF_REG_2, 0), | |
3fadc801 DB |
4865 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_2, -128), |
4866 | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_10, -128), | |
06c1c049 GB |
4867 | BPF_ALU64_IMM(BPF_AND, BPF_REG_2, 63), |
4868 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 1), | |
4869 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
4870 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
4871 | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16), | |
4872 | BPF_EXIT_INSN(), | |
4873 | }, | |
4874 | .errstr = "invalid indirect read from stack off -64+32 size 64", | |
4875 | .result = REJECT, | |
4876 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
4877 | }, | |
4878 | { | |
4879 | "helper access to variable memory: 8 bytes no leak (init memory)", | |
4880 | .insns = { | |
4881 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
4882 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
4883 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
4884 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -64), | |
4885 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -56), | |
4886 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -48), | |
4887 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -40), | |
4888 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -32), | |
4889 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -24), | |
4890 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -16), | |
4891 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -8), | |
4892 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64), | |
4893 | BPF_MOV64_IMM(BPF_REG_2, 0), | |
4894 | BPF_ALU64_IMM(BPF_AND, BPF_REG_2, 32), | |
4895 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 32), | |
4896 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
4897 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
4898 | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16), | |
4899 | BPF_EXIT_INSN(), | |
4900 | }, | |
4901 | .result = ACCEPT, | |
4902 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
4903 | }, | |
29200c19 JB |
4904 | { |
4905 | "invalid and of negative number", | |
4906 | .insns = { | |
4907 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | |
4908 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
4909 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
4910 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
4911 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
4912 | BPF_FUNC_map_lookup_elem), | |
4913 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4), | |
4914 | BPF_MOV64_IMM(BPF_REG_1, 6), | |
4915 | BPF_ALU64_IMM(BPF_AND, BPF_REG_1, -4), | |
4916 | BPF_ALU64_IMM(BPF_LSH, BPF_REG_1, 2), | |
4917 | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), | |
4918 | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, | |
4919 | offsetof(struct test_val, foo)), | |
4920 | BPF_EXIT_INSN(), | |
4921 | }, | |
4922 | .fixup_map2 = { 3 }, | |
4923 | .errstr_unpriv = "R0 pointer arithmetic prohibited", | |
4924 | .errstr = "R0 min value is negative, either use unsigned index or do a if (index >=0) check.", | |
4925 | .result = REJECT, | |
4926 | .result_unpriv = REJECT, | |
02ea80b1 | 4927 | .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, |
29200c19 JB |
4928 | }, |
4929 | { | |
4930 | "invalid range check", | |
4931 | .insns = { | |
4932 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | |
4933 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
4934 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
4935 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
4936 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
4937 | BPF_FUNC_map_lookup_elem), | |
4938 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 12), | |
4939 | BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 0), | |
4940 | BPF_MOV64_IMM(BPF_REG_9, 1), | |
4941 | BPF_ALU32_IMM(BPF_MOD, BPF_REG_1, 2), | |
4942 | BPF_ALU32_IMM(BPF_ADD, BPF_REG_1, 1), | |
4943 | BPF_ALU32_REG(BPF_AND, BPF_REG_9, BPF_REG_1), | |
4944 | BPF_ALU32_IMM(BPF_ADD, BPF_REG_9, 1), | |
4945 | BPF_ALU32_IMM(BPF_RSH, BPF_REG_9, 1), | |
4946 | BPF_MOV32_IMM(BPF_REG_3, 1), | |
4947 | BPF_ALU32_REG(BPF_SUB, BPF_REG_3, BPF_REG_9), | |
4948 | BPF_ALU32_IMM(BPF_MUL, BPF_REG_3, 0x10000000), | |
4949 | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_3), | |
4950 | BPF_STX_MEM(BPF_W, BPF_REG_0, BPF_REG_3, 0), | |
4951 | BPF_MOV64_REG(BPF_REG_0, 0), | |
4952 | BPF_EXIT_INSN(), | |
4953 | }, | |
4954 | .fixup_map2 = { 3 }, | |
4955 | .errstr_unpriv = "R0 pointer arithmetic prohibited", | |
4956 | .errstr = "R0 min value is negative, either use unsigned index or do a if (index >=0) check.", | |
4957 | .result = REJECT, | |
4958 | .result_unpriv = REJECT, | |
02ea80b1 | 4959 | .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, |
fb30d4b7 MKL |
4960 | }, |
4961 | { | |
4962 | "map in map access", | |
4963 | .insns = { | |
4964 | BPF_ST_MEM(0, BPF_REG_10, -4, 0), | |
4965 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
4966 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4), | |
4967 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
4968 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
4969 | BPF_FUNC_map_lookup_elem), | |
4970 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 5), | |
4971 | BPF_ST_MEM(0, BPF_REG_10, -4, 0), | |
4972 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
4973 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4), | |
4974 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
4975 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
4976 | BPF_FUNC_map_lookup_elem), | |
4977 | BPF_MOV64_REG(BPF_REG_0, 0), | |
4978 | BPF_EXIT_INSN(), | |
4979 | }, | |
4980 | .fixup_map_in_map = { 3 }, | |
4981 | .result = ACCEPT, | |
4982 | }, | |
4983 | { | |
4984 | "invalid inner map pointer", | |
4985 | .insns = { | |
4986 | BPF_ST_MEM(0, BPF_REG_10, -4, 0), | |
4987 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
4988 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4), | |
4989 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
4990 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
4991 | BPF_FUNC_map_lookup_elem), | |
4992 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6), | |
4993 | BPF_ST_MEM(0, BPF_REG_10, -4, 0), | |
4994 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
4995 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4), | |
4996 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
4997 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8), | |
4998 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
4999 | BPF_FUNC_map_lookup_elem), | |
5000 | BPF_MOV64_REG(BPF_REG_0, 0), | |
5001 | BPF_EXIT_INSN(), | |
5002 | }, | |
5003 | .fixup_map_in_map = { 3 }, | |
5004 | .errstr = "R1 type=inv expected=map_ptr", | |
5005 | .errstr_unpriv = "R1 pointer arithmetic prohibited", | |
5006 | .result = REJECT, | |
5007 | }, | |
5008 | { | |
5009 | "forgot null checking on the inner map pointer", | |
5010 | .insns = { | |
5011 | BPF_ST_MEM(0, BPF_REG_10, -4, 0), | |
5012 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
5013 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4), | |
5014 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
5015 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
5016 | BPF_FUNC_map_lookup_elem), | |
5017 | BPF_ST_MEM(0, BPF_REG_10, -4, 0), | |
5018 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
5019 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4), | |
5020 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
5021 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
5022 | BPF_FUNC_map_lookup_elem), | |
5023 | BPF_MOV64_REG(BPF_REG_0, 0), | |
5024 | BPF_EXIT_INSN(), | |
5025 | }, | |
5026 | .fixup_map_in_map = { 3 }, | |
5027 | .errstr = "R1 type=map_value_or_null expected=map_ptr", | |
5028 | .result = REJECT, | |
614d0d77 DB |
5029 | }, |
5030 | { | |
5031 | "ld_abs: check calling conv, r1", | |
5032 | .insns = { | |
5033 | BPF_MOV64_REG(BPF_REG_6, BPF_REG_1), | |
5034 | BPF_MOV64_IMM(BPF_REG_1, 0), | |
5035 | BPF_LD_ABS(BPF_W, -0x200000), | |
5036 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_1), | |
5037 | BPF_EXIT_INSN(), | |
5038 | }, | |
5039 | .errstr = "R1 !read_ok", | |
5040 | .result = REJECT, | |
5041 | }, | |
5042 | { | |
5043 | "ld_abs: check calling conv, r2", | |
5044 | .insns = { | |
5045 | BPF_MOV64_REG(BPF_REG_6, BPF_REG_1), | |
5046 | BPF_MOV64_IMM(BPF_REG_2, 0), | |
5047 | BPF_LD_ABS(BPF_W, -0x200000), | |
5048 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | |
5049 | BPF_EXIT_INSN(), | |
5050 | }, | |
5051 | .errstr = "R2 !read_ok", | |
5052 | .result = REJECT, | |
5053 | }, | |
5054 | { | |
5055 | "ld_abs: check calling conv, r3", | |
5056 | .insns = { | |
5057 | BPF_MOV64_REG(BPF_REG_6, BPF_REG_1), | |
5058 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
5059 | BPF_LD_ABS(BPF_W, -0x200000), | |
5060 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_3), | |
5061 | BPF_EXIT_INSN(), | |
5062 | }, | |
5063 | .errstr = "R3 !read_ok", | |
5064 | .result = REJECT, | |
5065 | }, | |
5066 | { | |
5067 | "ld_abs: check calling conv, r4", | |
5068 | .insns = { | |
5069 | BPF_MOV64_REG(BPF_REG_6, BPF_REG_1), | |
5070 | BPF_MOV64_IMM(BPF_REG_4, 0), | |
5071 | BPF_LD_ABS(BPF_W, -0x200000), | |
5072 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_4), | |
5073 | BPF_EXIT_INSN(), | |
5074 | }, | |
5075 | .errstr = "R4 !read_ok", | |
5076 | .result = REJECT, | |
5077 | }, | |
5078 | { | |
5079 | "ld_abs: check calling conv, r5", | |
5080 | .insns = { | |
5081 | BPF_MOV64_REG(BPF_REG_6, BPF_REG_1), | |
5082 | BPF_MOV64_IMM(BPF_REG_5, 0), | |
5083 | BPF_LD_ABS(BPF_W, -0x200000), | |
5084 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_5), | |
5085 | BPF_EXIT_INSN(), | |
5086 | }, | |
5087 | .errstr = "R5 !read_ok", | |
5088 | .result = REJECT, | |
5089 | }, | |
5090 | { | |
5091 | "ld_abs: check calling conv, r7", | |
5092 | .insns = { | |
5093 | BPF_MOV64_REG(BPF_REG_6, BPF_REG_1), | |
5094 | BPF_MOV64_IMM(BPF_REG_7, 0), | |
5095 | BPF_LD_ABS(BPF_W, -0x200000), | |
5096 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_7), | |
5097 | BPF_EXIT_INSN(), | |
5098 | }, | |
5099 | .result = ACCEPT, | |
5100 | }, | |
5101 | { | |
5102 | "ld_ind: check calling conv, r1", | |
5103 | .insns = { | |
5104 | BPF_MOV64_REG(BPF_REG_6, BPF_REG_1), | |
5105 | BPF_MOV64_IMM(BPF_REG_1, 1), | |
5106 | BPF_LD_IND(BPF_W, BPF_REG_1, -0x200000), | |
5107 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_1), | |
5108 | BPF_EXIT_INSN(), | |
5109 | }, | |
5110 | .errstr = "R1 !read_ok", | |
5111 | .result = REJECT, | |
5112 | }, | |
5113 | { | |
5114 | "ld_ind: check calling conv, r2", | |
5115 | .insns = { | |
5116 | BPF_MOV64_REG(BPF_REG_6, BPF_REG_1), | |
5117 | BPF_MOV64_IMM(BPF_REG_2, 1), | |
5118 | BPF_LD_IND(BPF_W, BPF_REG_2, -0x200000), | |
5119 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | |
5120 | BPF_EXIT_INSN(), | |
5121 | }, | |
5122 | .errstr = "R2 !read_ok", | |
5123 | .result = REJECT, | |
5124 | }, | |
5125 | { | |
5126 | "ld_ind: check calling conv, r3", | |
5127 | .insns = { | |
5128 | BPF_MOV64_REG(BPF_REG_6, BPF_REG_1), | |
5129 | BPF_MOV64_IMM(BPF_REG_3, 1), | |
5130 | BPF_LD_IND(BPF_W, BPF_REG_3, -0x200000), | |
5131 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_3), | |
5132 | BPF_EXIT_INSN(), | |
5133 | }, | |
5134 | .errstr = "R3 !read_ok", | |
5135 | .result = REJECT, | |
5136 | }, | |
5137 | { | |
5138 | "ld_ind: check calling conv, r4", | |
5139 | .insns = { | |
5140 | BPF_MOV64_REG(BPF_REG_6, BPF_REG_1), | |
5141 | BPF_MOV64_IMM(BPF_REG_4, 1), | |
5142 | BPF_LD_IND(BPF_W, BPF_REG_4, -0x200000), | |
5143 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_4), | |
5144 | BPF_EXIT_INSN(), | |
5145 | }, | |
5146 | .errstr = "R4 !read_ok", | |
5147 | .result = REJECT, | |
5148 | }, | |
5149 | { | |
5150 | "ld_ind: check calling conv, r5", | |
5151 | .insns = { | |
5152 | BPF_MOV64_REG(BPF_REG_6, BPF_REG_1), | |
5153 | BPF_MOV64_IMM(BPF_REG_5, 1), | |
5154 | BPF_LD_IND(BPF_W, BPF_REG_5, -0x200000), | |
5155 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_5), | |
5156 | BPF_EXIT_INSN(), | |
5157 | }, | |
5158 | .errstr = "R5 !read_ok", | |
5159 | .result = REJECT, | |
5160 | }, | |
5161 | { | |
5162 | "ld_ind: check calling conv, r7", | |
5163 | .insns = { | |
5164 | BPF_MOV64_REG(BPF_REG_6, BPF_REG_1), | |
5165 | BPF_MOV64_IMM(BPF_REG_7, 1), | |
5166 | BPF_LD_IND(BPF_W, BPF_REG_7, -0x200000), | |
5167 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_7), | |
5168 | BPF_EXIT_INSN(), | |
5169 | }, | |
5170 | .result = ACCEPT, | |
5171 | }, | |
3c731eba AS |
5172 | }; |
5173 | ||
5aa5bd14 | 5174 | static int probe_filter_length(const struct bpf_insn *fp) |
3c731eba | 5175 | { |
5aa5bd14 | 5176 | int len; |
3c731eba AS |
5177 | |
5178 | for (len = MAX_INSNS - 1; len > 0; --len) | |
5179 | if (fp[len].code != 0 || fp[len].imm != 0) | |
5180 | break; | |
3c731eba AS |
5181 | return len + 1; |
5182 | } | |
5183 | ||
5aa5bd14 | 5184 | static int create_map(uint32_t size_value, uint32_t max_elem) |
3c731eba | 5185 | { |
5aa5bd14 | 5186 | int fd; |
3c731eba | 5187 | |
f4874d01 | 5188 | fd = bpf_create_map(BPF_MAP_TYPE_HASH, sizeof(long long), |
5aa5bd14 DB |
5189 | size_value, max_elem, BPF_F_NO_PREALLOC); |
5190 | if (fd < 0) | |
5191 | printf("Failed to create hash map '%s'!\n", strerror(errno)); | |
bf508877 | 5192 | |
5aa5bd14 | 5193 | return fd; |
bf508877 AS |
5194 | } |
5195 | ||
5196 | static int create_prog_array(void) | |
5197 | { | |
5aa5bd14 | 5198 | int fd; |
bf508877 | 5199 | |
f4874d01 | 5200 | fd = bpf_create_map(BPF_MAP_TYPE_PROG_ARRAY, sizeof(int), |
5aa5bd14 DB |
5201 | sizeof(int), 4, 0); |
5202 | if (fd < 0) | |
5203 | printf("Failed to create prog array '%s'!\n", strerror(errno)); | |
3c731eba | 5204 | |
5aa5bd14 | 5205 | return fd; |
3c731eba AS |
5206 | } |
5207 | ||
fb30d4b7 MKL |
5208 | static int create_map_in_map(void) |
5209 | { | |
5210 | int inner_map_fd, outer_map_fd; | |
5211 | ||
5212 | inner_map_fd = bpf_create_map(BPF_MAP_TYPE_ARRAY, sizeof(int), | |
5213 | sizeof(int), 1, 0); | |
5214 | if (inner_map_fd < 0) { | |
5215 | printf("Failed to create array '%s'!\n", strerror(errno)); | |
5216 | return inner_map_fd; | |
5217 | } | |
5218 | ||
5219 | outer_map_fd = bpf_create_map_in_map(BPF_MAP_TYPE_ARRAY_OF_MAPS, | |
5220 | sizeof(int), inner_map_fd, 1, 0); | |
5221 | if (outer_map_fd < 0) | |
5222 | printf("Failed to create array of maps '%s'!\n", | |
5223 | strerror(errno)); | |
5224 | ||
5225 | close(inner_map_fd); | |
5226 | ||
5227 | return outer_map_fd; | |
5228 | } | |
5229 | ||
5aa5bd14 DB |
5230 | static char bpf_vlog[32768]; |
5231 | ||
5232 | static void do_test_fixup(struct bpf_test *test, struct bpf_insn *prog, | |
fb30d4b7 | 5233 | int *map_fds) |
3c731eba | 5234 | { |
5aa5bd14 DB |
5235 | int *fixup_map1 = test->fixup_map1; |
5236 | int *fixup_map2 = test->fixup_map2; | |
5237 | int *fixup_prog = test->fixup_prog; | |
fb30d4b7 | 5238 | int *fixup_map_in_map = test->fixup_map_in_map; |
3c731eba | 5239 | |
5aa5bd14 DB |
5240 | /* Allocating HTs with 1 elem is fine here, since we only test |
5241 | * for verifier and not do a runtime lookup, so the only thing | |
5242 | * that really matters is value size in this case. | |
5243 | */ | |
5244 | if (*fixup_map1) { | |
fb30d4b7 | 5245 | map_fds[0] = create_map(sizeof(long long), 1); |
5aa5bd14 | 5246 | do { |
fb30d4b7 | 5247 | prog[*fixup_map1].imm = map_fds[0]; |
5aa5bd14 DB |
5248 | fixup_map1++; |
5249 | } while (*fixup_map1); | |
5250 | } | |
3c731eba | 5251 | |
5aa5bd14 | 5252 | if (*fixup_map2) { |
fb30d4b7 | 5253 | map_fds[1] = create_map(sizeof(struct test_val), 1); |
5aa5bd14 | 5254 | do { |
fb30d4b7 | 5255 | prog[*fixup_map2].imm = map_fds[1]; |
5aa5bd14 DB |
5256 | fixup_map2++; |
5257 | } while (*fixup_map2); | |
5258 | } | |
3c731eba | 5259 | |
5aa5bd14 | 5260 | if (*fixup_prog) { |
fb30d4b7 | 5261 | map_fds[2] = create_prog_array(); |
5aa5bd14 | 5262 | do { |
fb30d4b7 | 5263 | prog[*fixup_prog].imm = map_fds[2]; |
5aa5bd14 DB |
5264 | fixup_prog++; |
5265 | } while (*fixup_prog); | |
5266 | } | |
fb30d4b7 MKL |
5267 | |
5268 | if (*fixup_map_in_map) { | |
5269 | map_fds[3] = create_map_in_map(); | |
5270 | do { | |
5271 | prog[*fixup_map_in_map].imm = map_fds[3]; | |
5272 | fixup_map_in_map++; | |
5273 | } while (*fixup_map_in_map); | |
5274 | } | |
5aa5bd14 | 5275 | } |
bf508877 | 5276 | |
5aa5bd14 DB |
5277 | static void do_test_single(struct bpf_test *test, bool unpriv, |
5278 | int *passes, int *errors) | |
5279 | { | |
02ea80b1 | 5280 | int fd_prog, expected_ret, reject_from_alignment; |
5aa5bd14 DB |
5281 | struct bpf_insn *prog = test->insns; |
5282 | int prog_len = probe_filter_length(prog); | |
5283 | int prog_type = test->prog_type; | |
fb30d4b7 | 5284 | int map_fds[MAX_NR_MAPS]; |
5aa5bd14 | 5285 | const char *expected_err; |
fb30d4b7 MKL |
5286 | int i; |
5287 | ||
5288 | for (i = 0; i < MAX_NR_MAPS; i++) | |
5289 | map_fds[i] = -1; | |
48461135 | 5290 | |
fb30d4b7 | 5291 | do_test_fixup(test, prog, map_fds); |
3c731eba | 5292 | |
614d0d77 DB |
5293 | fd_prog = bpf_verify_program(prog_type ? : BPF_PROG_TYPE_SOCKET_FILTER, |
5294 | prog, prog_len, test->flags & F_LOAD_WITH_STRICT_ALIGNMENT, | |
5295 | "GPL", 0, bpf_vlog, sizeof(bpf_vlog)); | |
3c731eba | 5296 | |
5aa5bd14 DB |
5297 | expected_ret = unpriv && test->result_unpriv != UNDEF ? |
5298 | test->result_unpriv : test->result; | |
5299 | expected_err = unpriv && test->errstr_unpriv ? | |
5300 | test->errstr_unpriv : test->errstr; | |
02ea80b1 DB |
5301 | |
5302 | reject_from_alignment = fd_prog < 0 && | |
5303 | (test->flags & F_NEEDS_EFFICIENT_UNALIGNED_ACCESS) && | |
5304 | strstr(bpf_vlog, "Unknown alignment."); | |
5305 | #ifdef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS | |
5306 | if (reject_from_alignment) { | |
5307 | printf("FAIL\nFailed due to alignment despite having efficient unaligned access: '%s'!\n", | |
5308 | strerror(errno)); | |
5309 | goto fail_log; | |
5310 | } | |
5311 | #endif | |
5aa5bd14 | 5312 | if (expected_ret == ACCEPT) { |
02ea80b1 | 5313 | if (fd_prog < 0 && !reject_from_alignment) { |
5aa5bd14 DB |
5314 | printf("FAIL\nFailed to load prog '%s'!\n", |
5315 | strerror(errno)); | |
5316 | goto fail_log; | |
5317 | } | |
5318 | } else { | |
5319 | if (fd_prog >= 0) { | |
5320 | printf("FAIL\nUnexpected success to load!\n"); | |
5321 | goto fail_log; | |
5322 | } | |
02ea80b1 | 5323 | if (!strstr(bpf_vlog, expected_err) && !reject_from_alignment) { |
5aa5bd14 DB |
5324 | printf("FAIL\nUnexpected error message!\n"); |
5325 | goto fail_log; | |
5326 | } | |
5327 | } | |
bf508877 | 5328 | |
5aa5bd14 | 5329 | (*passes)++; |
02ea80b1 DB |
5330 | printf("OK%s\n", reject_from_alignment ? |
5331 | " (NOTE: reject due to unknown alignment)" : ""); | |
5aa5bd14 DB |
5332 | close_fds: |
5333 | close(fd_prog); | |
fb30d4b7 MKL |
5334 | for (i = 0; i < MAX_NR_MAPS; i++) |
5335 | close(map_fds[i]); | |
5aa5bd14 DB |
5336 | sched_yield(); |
5337 | return; | |
5338 | fail_log: | |
5339 | (*errors)++; | |
5340 | printf("%s", bpf_vlog); | |
5341 | goto close_fds; | |
5342 | } | |
bf508877 | 5343 | |
d02d8986 MS |
5344 | static bool is_admin(void) |
5345 | { | |
5346 | cap_t caps; | |
5347 | cap_flag_value_t sysadmin = CAP_CLEAR; | |
5348 | const cap_value_t cap_val = CAP_SYS_ADMIN; | |
5349 | ||
1da8ac7c | 5350 | #ifdef CAP_IS_SUPPORTED |
d02d8986 MS |
5351 | if (!CAP_IS_SUPPORTED(CAP_SETFCAP)) { |
5352 | perror("cap_get_flag"); | |
5353 | return false; | |
5354 | } | |
1da8ac7c | 5355 | #endif |
d02d8986 MS |
5356 | caps = cap_get_proc(); |
5357 | if (!caps) { | |
5358 | perror("cap_get_proc"); | |
5359 | return false; | |
5360 | } | |
5361 | if (cap_get_flag(caps, cap_val, CAP_EFFECTIVE, &sysadmin)) | |
5362 | perror("cap_get_flag"); | |
5363 | if (cap_free(caps)) | |
5364 | perror("cap_free"); | |
5365 | return (sysadmin == CAP_SET); | |
5366 | } | |
5367 | ||
5368 | static int set_admin(bool admin) | |
5369 | { | |
5370 | cap_t caps; | |
5371 | const cap_value_t cap_val = CAP_SYS_ADMIN; | |
5372 | int ret = -1; | |
5373 | ||
5374 | caps = cap_get_proc(); | |
5375 | if (!caps) { | |
5376 | perror("cap_get_proc"); | |
5377 | return -1; | |
5378 | } | |
5379 | if (cap_set_flag(caps, CAP_EFFECTIVE, 1, &cap_val, | |
5380 | admin ? CAP_SET : CAP_CLEAR)) { | |
5381 | perror("cap_set_flag"); | |
5382 | goto out; | |
5383 | } | |
5384 | if (cap_set_proc(caps)) { | |
5385 | perror("cap_set_proc"); | |
5386 | goto out; | |
5387 | } | |
5388 | ret = 0; | |
5389 | out: | |
5390 | if (cap_free(caps)) | |
5391 | perror("cap_free"); | |
5392 | return ret; | |
5393 | } | |
5394 | ||
5aa5bd14 DB |
5395 | static int do_test(bool unpriv, unsigned int from, unsigned int to) |
5396 | { | |
5397 | int i, passes = 0, errors = 0; | |
3c731eba | 5398 | |
5aa5bd14 DB |
5399 | for (i = from; i < to; i++) { |
5400 | struct bpf_test *test = &tests[i]; | |
3c731eba | 5401 | |
5aa5bd14 DB |
5402 | /* Program types that are not supported by non-root we |
5403 | * skip right away. | |
5404 | */ | |
d02d8986 MS |
5405 | if (!test->prog_type) { |
5406 | if (!unpriv) | |
5407 | set_admin(false); | |
5408 | printf("#%d/u %s ", i, test->descr); | |
5409 | do_test_single(test, true, &passes, &errors); | |
5410 | if (!unpriv) | |
5411 | set_admin(true); | |
5412 | } | |
5aa5bd14 | 5413 | |
d02d8986 MS |
5414 | if (!unpriv) { |
5415 | printf("#%d/p %s ", i, test->descr); | |
5416 | do_test_single(test, false, &passes, &errors); | |
5417 | } | |
3c731eba AS |
5418 | } |
5419 | ||
5aa5bd14 DB |
5420 | printf("Summary: %d PASSED, %d FAILED\n", passes, errors); |
5421 | return errors ? -errors : 0; | |
3c731eba AS |
5422 | } |
5423 | ||
5aa5bd14 | 5424 | int main(int argc, char **argv) |
3c731eba | 5425 | { |
5aa5bd14 DB |
5426 | struct rlimit rinf = { RLIM_INFINITY, RLIM_INFINITY }; |
5427 | struct rlimit rlim = { 1 << 20, 1 << 20 }; | |
5428 | unsigned int from = 0, to = ARRAY_SIZE(tests); | |
d02d8986 | 5429 | bool unpriv = !is_admin(); |
5aa5bd14 DB |
5430 | |
5431 | if (argc == 3) { | |
5432 | unsigned int l = atoi(argv[argc - 2]); | |
5433 | unsigned int u = atoi(argv[argc - 1]); | |
5434 | ||
5435 | if (l < to && u < to) { | |
5436 | from = l; | |
5437 | to = u + 1; | |
5438 | } | |
5439 | } else if (argc == 2) { | |
5440 | unsigned int t = atoi(argv[argc - 1]); | |
5441 | ||
5442 | if (t < to) { | |
5443 | from = t; | |
5444 | to = t + 1; | |
5445 | } | |
5446 | } | |
bf508877 | 5447 | |
5aa5bd14 DB |
5448 | setrlimit(RLIMIT_MEMLOCK, unpriv ? &rlim : &rinf); |
5449 | return do_test(unpriv, from, to); | |
3c731eba | 5450 | } |