Patch "ovl: add NULL check in ovl_alloc_inode" has been added to the 4.13-stable tree

Patch "ovl: add NULL check in ovl_alloc_inode" has been added to the 4.13-stable tree

[gregkh]

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

    ovl: add NULL check in ovl_alloc_inode

to the 4.13-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:
     ovl-add-null-check-in-ovl_alloc_inode.patch
and it can be found in the queue-4.13 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 b3885bd6edb41b91a0e3976469f72ae31bfb8d95 Mon Sep 17 00:00:00 2001
From: Hirofumi Nakagawa <nklabs@gmail.com>
Date: Tue, 26 Sep 2017 03:09:53 +0900
Subject: ovl: add NULL check in ovl_alloc_inode

From: Hirofumi Nakagawa <nklabs@gmail.com>

commit b3885bd6edb41b91a0e3976469f72ae31bfb8d95 upstream.

This was detected by fault injection test

Signed-off-by: Hirofumi Nakagawa <nklabs@gmail.com>
Fixes: 13cf199d0088 ("ovl: allocate an ovl_inode struct")
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 fs/overlayfs/super.c |    3 +++
 1 file changed, 3 insertions(+)

--- a/fs/overlayfs/super.c
+++ b/fs/overlayfs/super.c
@@ -174,6 +174,9 @@ static struct inode *ovl_alloc_inode(str
 {
 	struct ovl_inode *oi = kmem_cache_alloc(ovl_inode_cachep, GFP_KERNEL);
 
+	if (!oi)
+		return NULL;
+
 	oi->cache = NULL;
 	oi->redirect = NULL;
 	oi->version = 0;


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

queue-4.13/ovl-add-null-check-in-ovl_alloc_inode.patch