From: Pavel Shilovsky <pshilovsky@samba.org>
Date: Thu, 5 Sep 2013 11:04:04 +0000 (+0400)
Subject: CIFS: Fix a memory leak when a lease break comes
X-Git-Tag: v3.11.2~87
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=189b939d6c6e3b4c430c7d679649e9007e55f500;p=thirdparty%2Fkernel%2Fstable.git

CIFS: Fix a memory leak when a lease break comes

commit 1a05096de82f3cd672c76389f63964952678506f upstream.

This happens when we receive a lease break from a server, then
find an appropriate lease key in opened files and schedule the
oplock_break slow work. lw pointer isn't freed in this case.

Signed-off-by: Pavel Shilovsky <pshilovsky@samba.org>
Signed-off-by: Steve French <smfrench@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/fs/cifs/smb2misc.c b/fs/cifs/smb2misc.c
index b0c43345cd981..b6c3380b16bc6 100644
--- a/fs/cifs/smb2misc.c
+++ b/fs/cifs/smb2misc.c
@@ -473,6 +473,7 @@ smb2_is_valid_lease_break(char *buffer, struct TCP_Server_Info *server)
 
 				queue_work(cifsiod_wq, &cfile->oplock_break);
 
+				kfree(lw);
 				spin_unlock(&cifs_file_list_lock);
 				spin_unlock(&cifs_tcp_ses_lock);
 				return true;