Patch "hpfs: kstrdup() out of memory handling" has been added to the 4.1-stable tree

Patch "hpfs: kstrdup() out of memory handling" has been added to the 4.1-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    hpfs: kstrdup() out of memory handling

to the 4.1-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     hpfs-kstrdup-out-of-memory-handling.patch
and it can be found in the queue-4.1 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From ce657611baf902f14ae559ce4e0787ead6712067 Mon Sep 17 00:00:00 2001
From: Sanidhya Kashyap <sanidhya.gatech@gmail.com>
Date: Sat, 21 Mar 2015 12:57:50 -0400
Subject: hpfs: kstrdup() out of memory handling

From: Sanidhya Kashyap <sanidhya.gatech@gmail.com>

commit ce657611baf902f14ae559ce4e0787ead6712067 upstream.

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>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 fs/hpfs/super.c |    7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

--- a/fs/hpfs/super.c
+++ b/fs/hpfs/super.c
@@ -424,11 +424,14 @@ 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;


Patches currently in stable-queue which might be from sanidhya.gatech@gmail.com are

queue-4.1/hpfs-kstrdup-out-of-memory-handling.patch