From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:35925 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753903AbcCGUyY (ORCPT ); Mon, 7 Mar 2016 15:54:24 -0500 Subject: Patch "ubi: Fix out of bounds write in volume update code" has been added to the 4.4-stable tree To: richard@nod.at, boris.brezillon@free-electrons.com, gregkh@linuxfoundation.org Cc: , From: Date: Mon, 07 Mar 2016 12:54:23 -0800 Message-ID: <14573840634760@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 ubi: Fix out of bounds write in volume update code to the 4.4-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: ubi-fix-out-of-bounds-write-in-volume-update-code.patch and it can be found in the queue-4.4 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >>From e4f6daac20332448529b11f09388f1d55ef2084c Mon Sep 17 00:00:00 2001 From: Richard Weinberger Date: Sun, 21 Feb 2016 10:53:03 +0100 Subject: ubi: Fix out of bounds write in volume update code From: Richard Weinberger commit e4f6daac20332448529b11f09388f1d55ef2084c upstream. ubi_start_leb_change() allocates too few bytes. ubi_more_leb_change_data() will write up to req->upd_bytes + ubi->min_io_size bytes. Signed-off-by: Richard Weinberger Reviewed-by: Boris Brezillon Signed-off-by: Greg Kroah-Hartman --- drivers/mtd/ubi/upd.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/mtd/ubi/upd.c +++ b/drivers/mtd/ubi/upd.c @@ -193,7 +193,7 @@ int ubi_start_leb_change(struct ubi_devi vol->changing_leb = 1; vol->ch_lnum = req->lnum; - vol->upd_buf = vmalloc(req->bytes); + vol->upd_buf = vmalloc(ALIGN((int)req->bytes, ubi->min_io_size)); if (!vol->upd_buf) return -ENOMEM; Patches currently in stable-queue which might be from richard@nod.at are queue-4.4/ubi-fix-out-of-bounds-write-in-volume-update-code.patch