From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1947311AbbEBUiL (ORCPT ); Sat, 2 May 2015 16:38:11 -0400 Received: from mail.linuxfoundation.org ([140.211.169.12]:45781 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753725AbbEBTd4 (ORCPT ); Sat, 2 May 2015 15:33:56 -0400 From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Brian Norris , Richard Weinberger Subject: [PATCH 3.19 102/177] UBI: fix out of bounds write Date: Sat, 2 May 2015 21:02:04 +0200 Message-Id: <20150502190124.051281088@linuxfoundation.org> X-Mailer: git-send-email 2.3.7 In-Reply-To: <20150502190119.666291882@linuxfoundation.org> References: <20150502190119.666291882@linuxfoundation.org> User-Agent: quilt/0.64 MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-15 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 3.19-stable review patch. If anyone has any objections, please let me know. ------------------ From: Brian Norris commit d74adbdb9abf0d2506a6c4afa534d894f28b763f upstream. If aeb->len >= vol->reserved_pebs, we should not be writing aeb into the PEB->LEB mapping. Caught by Coverity, CID #711212. Signed-off-by: Brian Norris Signed-off-by: Richard Weinberger Signed-off-by: Greg Kroah-Hartman --- drivers/mtd/ubi/eba.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) --- a/drivers/mtd/ubi/eba.c +++ b/drivers/mtd/ubi/eba.c @@ -1362,7 +1362,8 @@ int ubi_eba_init(struct ubi_device *ubi, * during re-size. */ ubi_move_aeb_to_list(av, aeb, &ai->erase); - vol->eba_tbl[aeb->lnum] = aeb->pnum; + else + vol->eba_tbl[aeb->lnum] = aeb->pnum; } }