From: Alan Cox <alan@linux.intel.com>
Date: Fri, 20 Jul 2012 13:18:36 +0000 (-0500)
Subject: ceph: fix potential double free
X-Git-Tag: firefly_0821_release~3680^2~2292^2~48
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=21ec6ffa46719a4ed45531b5b01014c26f0416c4;p=firefly-linux-kernel-4.4.55.git

ceph: fix potential double free

We re-run the loop but we don't re-set the attrs pointer back to NULL.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Reviewed-by: Alex Elder <elder@inktank.com>
---

diff --git a/fs/ceph/xattr.c b/fs/ceph/xattr.c
index 785cb3057c95..2c2ae5be9902 100644
--- a/fs/ceph/xattr.c
+++ b/fs/ceph/xattr.c
@@ -457,6 +457,7 @@ start:
 			for (i = 0; i < numattr; i++)
 				kfree(xattrs[i]);
 			kfree(xattrs);
+			xattrs = NULL;
 			goto start;
 		}
 		err = -EIO;