Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S936304AbdCVTlp (ORCPT ); Wed, 22 Mar 2017 15:41:45 -0400 Received: from shards.monkeyblade.net ([184.105.139.130]:43722 "EHLO shards.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1759481AbdCVTlS (ORCPT ); Wed, 22 Mar 2017 15:41:18 -0400 Date: Wed, 22 Mar 2017 12:40:53 -0700 (PDT) Message-Id: <20170322.124053.395077714485086280.davem@davemloft.net> To: glider@google.com Cc: dvyukov@google.com, kcc@google.com, edumazet@google.com, soheil@google.com, kuznet@ms2.inr.ac.ru, linux-kernel@vger.kernel.org, netdev@vger.kernel.org Subject: Re: [PATCH] ipv6: make sure to initialize sockc.tsflags before first use From: David Miller In-Reply-To: <20170321161427.103713-1-glider@google.com> References: <20170321161427.103713-1-glider@google.com> X-Mailer: Mew version 6.7 on Emacs 24.5 / Mule 6.0 (HANACHIRUSATO) Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Greylist: Sender succeeded SMTP AUTH, not delayed by milter-greylist-4.5.12 (shards.monkeyblade.net [149.20.54.216]); Wed, 22 Mar 2017 12:40:53 -0700 (PDT) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 437 Lines: 12 From: Alexander Potapenko Date: Tue, 21 Mar 2017 17:14:27 +0100 > In the case udp_sk(sk)->pending is AF_INET6, udpv6_sendmsg() would > jump to do_append_data, skipping the initialization of sockc.tsflags. > Fix the problem by moving sockc.tsflags initialization earlier. > > The bug was detected with KMSAN. > > Signed-off-by: Alexander Potapenko Applied and queued up for -stable, thank you.