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[PATCH] Increase AT_VECTOR_SIZE

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On PowerPC, we want to be able to provide an AT_PLATFORM aux table
entry to userspace, so that glibc can choose optimized libraries for
the processor we're running on.  Unfortunately that would be the 21st
aux table entry on powerpc, meaning that the aux table including the
terminating null entry would overflow the mm->saved_auxv[] array,
leading to userland programs segfaulting.

This increases the size of the mm->saved_auxv array to be large enough
to accommodate an AT_PLATFORM entry on powerpc.

Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Paul Mackerras 2006-01-13 14:23:25 +11:00 committed by Linus Torvalds
parent 8a430d74fe
commit 67daf5f11f
1 changed files with 1 additions and 1 deletions
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2
include/linux/auxvec.h
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@ -26,6 +26,6 @@
#define AT_SECURE 23 /* secure mode boolean */
#define AT_VECTOR_SIZE 42 /* Size of auxiliary table. */
#define AT_VECTOR_SIZE 44 /* Size of auxiliary table. */
#endif /* _LINUX_AUXVEC_H */