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=-8.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING,SPF_PASS,URIBL_BLOCKED, USER_AGENT_NEOMUTT 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 92DE1C43387 for ; Wed, 26 Dec 2018 10:42:28 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 64B9D2171F for ; Wed, 26 Dec 2018 10:42:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726790AbeLZKm1 (ORCPT ); Wed, 26 Dec 2018 05:42:27 -0500 Received: from Chamillionaire.breakpoint.cc ([146.0.238.67]:58564 "EHLO Chamillionaire.breakpoint.cc" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726549AbeLZKm1 (ORCPT ); Wed, 26 Dec 2018 05:42:27 -0500 Received: from fw by Chamillionaire.breakpoint.cc with local (Exim 4.89) (envelope-from ) id 1gc6dp-0007uD-66; Wed, 26 Dec 2018 11:42:21 +0100 Date: Wed, 26 Dec 2018 11:42:21 +0100 From: Florian Westphal To: syzbot Cc: davem@davemloft.net, herbert@gondor.apana.org.au, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, steffen.klassert@secunet.com, syzkaller-bugs@googlegroups.com Subject: Re: KASAN: use-after-free Write in __xfrm_policy_unlink Message-ID: <20181226104221.pojiahsinsspkkxf@breakpoint.cc> References: <000000000000f16b5e05714225b8@google.com> <0000000000003878ad057d97d241@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <0000000000003878ad057d97d241@google.com> User-Agent: NeoMutt/20170113 (1.7.2) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org syzbot wrote: > syzbot has found a reproducer for the following crash on: > > HEAD commit: ce28bb445388 Merge git://git.kernel.org/pub/scm/linux/kern.. > git tree: net-next > console output: https://syzkaller.appspot.com/x/log.txt?x=1673fb1b400000 > kernel config: https://syzkaller.appspot.com/x/.config?x=67a2081147a23142 > dashboard link: https://syzkaller.appspot.com/bug?extid=9d971dd21eb26567036b > compiler: gcc (GCC) 8.0.1 20180413 (experimental) > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1134dcc7400000 > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=126986ed400000 > > IMPORTANT: if you fix the bug, please add the following tag to the commit: > Reported-by: syzbot+9d971dd21eb26567036b@syzkaller.appspotmail.com I've fixed this one. Chances are that at least some of the other reports are duplicates of this one. I will continue to look at other reports over the next few days and plan to send out fixes and test cases next week.