From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:36102 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752075AbdEQP5M (ORCPT ); Wed, 17 May 2017 11:57:12 -0400 Subject: Patch "cifs: fix leak in FSCTL_ENUM_SNAPS response handling" has been added to the 4.11-stable tree To: ddiss@suse.de, gregkh@linuxfoundation.org, smfrench@gmail.com Cc: , From: Date: Wed, 17 May 2017 17:55:53 +0200 Message-ID: <1495036553185155@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org List-ID: This is a note to let you know that I've just added the patch titled cifs: fix leak in FSCTL_ENUM_SNAPS response handling to the 4.11-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: cifs-fix-leak-in-fsctl_enum_snaps-response-handling.patch and it can be found in the queue-4.11 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >>From 0e5c795592930d51fd30d53a2e7b73cba022a29b Mon Sep 17 00:00:00 2001 From: David Disseldorp Date: Wed, 3 May 2017 17:39:09 +0200 Subject: cifs: fix leak in FSCTL_ENUM_SNAPS response handling From: David Disseldorp commit 0e5c795592930d51fd30d53a2e7b73cba022a29b upstream. The server may respond with success, and an output buffer less than sizeof(struct smb_snapshot_array) in length. Do not leak the output buffer in this case. Fixes: 834170c85978 ("Enable previous version support") Signed-off-by: David Disseldorp Signed-off-by: Steve French Signed-off-by: Greg Kroah-Hartman --- fs/cifs/smb2ops.c | 1 + 1 file changed, 1 insertion(+) --- a/fs/cifs/smb2ops.c +++ b/fs/cifs/smb2ops.c @@ -942,6 +942,7 @@ smb3_enum_snapshots(const unsigned int x } if (snapshot_in.snapshot_array_size < sizeof(struct smb_snapshot_array)) { rc = -ERANGE; + kfree(retbuf); return rc; } Patches currently in stable-queue which might be from ddiss@suse.de are queue-4.11/cifs-fix-cifs_ioc_get_mnt_info-oops.patch queue-4.11/target-fileio-fix-zero-length-read-and-write-handling.patch queue-4.11/cifs-fix-cifs_enumerate_snapshots-oops.patch queue-4.11/cifs-fix-leak-in-fsctl_enum_snaps-response-handling.patch