From 2221e33e5de0a17eef521b923229b2ede48abaad Mon Sep 17 00:00:00 2001
From: Ulrich Drepper <drepper@redhat.com>
Date: Sat, 9 May 2009 06:40:15 +0000
Subject: * sysdeps/x86_64/memchr.S: Handle invalid buffer pointers when

	count is zero.
---
 sysdeps/x86_64/memchr.S | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'sysdeps')

diff --git a/sysdeps/x86_64/memchr.S b/sysdeps/x86_64/memchr.S
index 09ba6d4f8d..54b7af534c 100644
--- a/sysdeps/x86_64/memchr.S
+++ b/sysdeps/x86_64/memchr.S
@@ -26,7 +26,9 @@ ENTRY (memchr)
 	movq	%rdi, %rcx
 	punpcklbw %xmm1, %xmm1
 	andq	$~15, %rdi
+	testq	%rdx, %rdx
 	punpcklbw %xmm1, %xmm1
+	jz	3f
 	orl	$0xffffffff, %esi
 	movdqa	(%rdi), %xmm0
 	pshufd	$0, %xmm1, %xmm1
-- 
cgit 1.4.1