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1 /*
2  * Copyright (C) 2006 Jeff Dike ([email protected])
3  * Licensed under the GPL V2
4  */
5
6 #include <linux/uaccess.h>
7
8 /*
9  * Mostly copied from i386/x86_86 - eliminated the eip < PAGE_OFFSET because
10  * that's not relevant in skas mode.
11  */
12
13 int is_valid_bugaddr(unsigned long eip)
14 {
15         unsigned short ud2;
16
17         if (probe_kernel_address((unsigned short __user *)eip, ud2))
18                 return 0;
19
20         return ud2 == 0x0b0f;
21 }
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