From: Liubov Dmitrieva <liubov.dmitrieva@intel.com>
Date: Wed, 26 Jun 2013 19:28:43 +0000 (-0700)
Subject: Fix buffers overrun in x86_64 memcmp-ssse3.S
X-Git-Tag: glibc-2.18~81
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=11b8a0e1d7b6175470ffc9077e94104c896093b7;p=platform%2Fupstream%2Fglibc.git

Fix buffers overrun in x86_64 memcmp-ssse3.S
---

diff --git a/ChangeLog b/ChangeLog
index 64f2fe3..fd3a90f 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2013-06-26  Liubov Dmitrieva  <liubov.dmitrieva@intel.com>
+
+	[BZ #15674]
+	* sysdeps/x86_64/multiarch/memcmp-ssse3.S: Fix buffers overrun.
+
 2013-06-26  Maciej W. Rozycki  <macro@codesourcery.com>
 
 	[BZ #15022]
diff --git a/sysdeps/x86_64/multiarch/memcmp-ssse3.S b/sysdeps/x86_64/multiarch/memcmp-ssse3.S
index bdd2ed2..e319df9 100644
--- a/sysdeps/x86_64/multiarch/memcmp-ssse3.S
+++ b/sysdeps/x86_64/multiarch/memcmp-ssse3.S
@@ -1463,10 +1463,8 @@ L(next_24_bytes):
 	test	$0x40, %dh
 	jnz	L(Byte22)
 
-	mov	-9(%rdi), %eax
-	and	$0xff, %eax
-	mov	-9(%rsi), %edx
-	and	$0xff, %edx
+	movzbl	-9(%rdi), %eax
+	movzbl	-9(%rsi), %edx
 	sub	%edx, %eax
 	ret
 # else