From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751574AbdKVEBe (ORCPT ); Tue, 21 Nov 2017 23:01:34 -0500 Received: from userp1040.oracle.com ([156.151.31.81]:43209 "EHLO userp1040.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751445AbdKVEBd (ORCPT ); Tue, 21 Nov 2017 23:01:33 -0500 To: "Gustavo A. R. Silva" Cc: Vinayak Holikatti , "James E.J. Bottomley" , "Martin K. Petersen" , linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] scsi: ufs: ufshcd: fix potential NULL pointer dereference in ufshcd_config_vreg From: "Martin K. Petersen" Organization: Oracle Corporation References: <20171120141229.GA2130@embeddedor.com> Date: Tue, 21 Nov 2017 23:01:15 -0500 In-Reply-To: <20171120141229.GA2130@embeddedor.com> (Gustavo A. R. Silva's message of "Mon, 20 Nov 2017 08:12:29 -0600") Message-ID: User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/25.3 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain X-Source-IP: userv0022.oracle.com [156.151.31.74] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Gustavo A., > _vreg_ is being dereferenced before it is null checked, hence there is a > potential null pointer dereference. > > Fix this by moving the pointer dereference after _vreg_ has been null > checked. Applied to 4.15/scsi-fixes, thank you! -- Martin K. Petersen Oracle Linux Engineering