From: Mikulas Patocka <mikulas@twibright.com>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org
Subject: [PATCH] hpfs: kstrdup() out of memory handling
Date: Sun, 28 Jun 2015 15:20:47 +0200 (CEST) [thread overview]
Message-ID: <alpine.DEB.2.00.1506281519220.29365@leontynka> (raw)
From: Sanidhya Kashyap <sanidhya.gatech@gmail.com>
Date: Sat, 21 Mar 2015 12:57:50 -0400
There is a possibility of nothing being allocated to the new_opts in
case of memory pressure, therefore return ENOMEM for such case.
Signed-off-by: Sanidhya Kashyap <sanidhya.gatech@gmail.com>
Signed-off-by: Mikulas Patocka <mikulas@twibright.com>
Cc: stable@vger.kernel.org
---
fs/hpfs/super.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
Index: linux-2.6/fs/hpfs/super.c
===================================================================
--- linux-2.6.orig/fs/hpfs/super.c 2015-06-28 14:43:48.000000000 +0200
+++ linux-2.6/fs/hpfs/super.c 2015-06-28 14:45:11.000000000 +0200
@@ -459,11 +459,14 @@ static int hpfs_remount_fs(struct super_
int o;
struct hpfs_sb_info *sbi = hpfs_sb(s);
char *new_opts = kstrdup(data, GFP_KERNEL);
-
+
+ if (!new_opts)
+ return -ENOMEM;
+
sync_filesystem(s);
*flags |= MS_NOATIME;
-
+
hpfs_lock(s);
uid = sbi->sb_uid; gid = sbi->sb_gid;
umask = 0777 & ~sbi->sb_mode;
reply other threads:[~2015-06-28 13:27 UTC|newest]
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