From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.9 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS, T_DKIMWL_WL_HIGH,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id E4DCCC04AB1 for ; Thu, 9 May 2019 18:44:39 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id B91AC217F5 for ; Thu, 9 May 2019 18:44:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1557427479; bh=hEuToZTYTh+72tR79gRIV7bx32NRmE1y/XhSGpfYvRw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=yUzWmlJiqOIXi8Zk04e92Zn4qLyvgGUYcriiBZI5CJH1Cz8T5USwNt923KUoOtpWy FwnclLp7dNSAQ+mIruKXdA05e3Mj+qXBZ7XerAvqxMtXwYSBpuJeD1sEgT8ut+6f9e DpR4tKj5lmU/gTd1lOSqGg0ozuBjzFDGz+cALtgg= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727090AbfEISoj (ORCPT ); Thu, 9 May 2019 14:44:39 -0400 Received: from mail.kernel.org ([198.145.29.99]:36012 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727053AbfEISoe (ORCPT ); Thu, 9 May 2019 14:44:34 -0400 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 13F10217D6; Thu, 9 May 2019 18:44:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1557427473; bh=hEuToZTYTh+72tR79gRIV7bx32NRmE1y/XhSGpfYvRw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=zzG4xRsdUvGkJcSCHdYm+SB7DsBsnY3B+B3Z/Cidqh8n/NQ5CnFVYP0IPW0UTLtR6 KQLKd3rEtOSDJui2cXAACxXOw2CvlzfQAM1T8Fc6gqI2GNGRgIHCvaRa1r3dHl0mB5 XVpPlHw7g2MkaFvGeUJ6U/3zEIFvsusxRBuUHFgA= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Andrew Vasquez , Himanshu Madhani , "Martin K. Petersen" Subject: [PATCH 4.9 23/28] scsi: qla2xxx: Fix incorrect region-size setting in optrom SYSFS routines Date: Thu, 9 May 2019 20:42:15 +0200 Message-Id: <20190509181255.186877923@linuxfoundation.org> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190509181247.647767531@linuxfoundation.org> References: <20190509181247.647767531@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Andrew Vasquez commit 5cbdae10bf11f96e30b4d14de7b08c8b490e903c upstream. Commit e6f77540c067 ("scsi: qla2xxx: Fix an integer overflow in sysfs code") incorrectly set 'optrom_region_size' to 'start+size', which can overflow option-rom boundaries when 'start' is non-zero. Continue setting optrom_region_size to the proper adjusted value of 'size'. Fixes: e6f77540c067 ("scsi: qla2xxx: Fix an integer overflow in sysfs code") Cc: stable@vger.kernel.org Signed-off-by: Andrew Vasquez Signed-off-by: Himanshu Madhani Signed-off-by: Martin K. Petersen Signed-off-by: Greg Kroah-Hartman --- drivers/scsi/qla2xxx/qla_attr.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) --- a/drivers/scsi/qla2xxx/qla_attr.c +++ b/drivers/scsi/qla2xxx/qla_attr.c @@ -345,7 +345,7 @@ qla2x00_sysfs_write_optrom_ctl(struct fi } ha->optrom_region_start = start; - ha->optrom_region_size = start + size; + ha->optrom_region_size = size; ha->optrom_state = QLA_SREADING; ha->optrom_buffer = vmalloc(ha->optrom_region_size); @@ -418,7 +418,7 @@ qla2x00_sysfs_write_optrom_ctl(struct fi } ha->optrom_region_start = start; - ha->optrom_region_size = start + size; + ha->optrom_region_size = size; ha->optrom_state = QLA_SWRITING; ha->optrom_buffer = vmalloc(ha->optrom_region_size);