From: Vasily Averin <vvs@parallels.com>
Date: Mon, 6 Jun 2011 07:33:12 +0000 (+0400)
Subject: possible memory corruption in cifs_parse_mount_options()
X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=957df4535d06a8e009101239937ca5e50a6218c6;p=sagit-ice-cold%2Fkernel_xiaomi_msm8998.git

possible memory corruption in cifs_parse_mount_options()

error path after mountdata check frees uninitialized mountdata_copy

Signed-off-by: Vasily Averin <vvs@sw.ru>
Signed-off-by: Steve French <sfrench@us.ibm.com>
---

diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index 84c730701c09..fb31c2c1bb17 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -784,7 +784,7 @@ cifs_parse_mount_options(const char *mountdata, const char *devname,
 			 struct smb_vol *vol)
 {
 	char *value, *data, *end;
-	char *mountdata_copy, *options;
+	char *mountdata_copy = NULL, *options;
 	unsigned int  temp_len, i, j;
 	char separator[2];
 	short int override_uid = -1;