Fix htab_delete loop counter

dlclose can crash or stuck the system:

When calling dlclose() then system can crash or freeze, because
htab_delete() in ldso/ldso/fdpic/dl-inlines.h uses size_t for i which
is a typedef to unsigned int.  We exit the loop on negative value of i
which can never occur since i is an unsigned int. This leads to random
free of various pointers that kill the system.

	* ldso/include/inline-hashtab.h (htab_delete): Change type of 'i' to int.

Signed-off-by: Mickaël Guêné <[email protected]>
Signed-off-by: Christophe Lyon <[email protected]>

diff --git a/ldso/include/inline-hashtab.h b/ldso/include/inline-hashtab.h
index 4a4812027a9a4be69af09c73a53b3ed81a0f4ada..c6c584b0848e1ed6b94dbcd93fe8d2c4ad13a2fa 100644 (file)
--- a/ldso/include/inline-hashtab.h
+++ b/ldso/include/inline-hashtab.h
@@ -107,7 +107,7 @@ htab_create(void)
 static __always_inline void
 htab_delete(struct funcdesc_ht *htab)
 {
-       size_t i;
+       int i;
 
        for (i = htab->size - 1; i >= 0; i--)
                if (htab->entries[i])