From 67daf5f11f06b9b15f8320de1d237ccc2e74fe43 Mon Sep 17 00:00:00 2001
From: Paul Mackerras <paulus@samba.org>
Date: Fri, 13 Jan 2006 14:23:25 +1100
Subject: [PATCH] [PATCH] Increase AT_VECTOR_SIZE

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>
---
 include/linux/auxvec.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/auxvec.h b/include/linux/auxvec.h
index 9a7b374c9fb4..d2bc0d66e65d 100644
--- a/include/linux/auxvec.h
+++ b/include/linux/auxvec.h
@@ -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 */
-- 
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