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=-10.3 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=unavailable 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 CCF05C433E2 for ; Thu, 17 Sep 2020 13:17:26 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 832ED2083B for ; Thu, 17 Sep 2020 13:17:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726843AbgIQNRO (ORCPT ); Thu, 17 Sep 2020 09:17:14 -0400 Received: from mx2.suse.de ([195.135.220.15]:34514 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727015AbgIQNQB (ORCPT ); Thu, 17 Sep 2020 09:16:01 -0400 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.221.27]) by mx2.suse.de (Postfix) with ESMTP id 36D62AC3F; Thu, 17 Sep 2020 13:16:06 +0000 (UTC) Received: by ds.suse.cz (Postfix, from userid 10065) id D6053DA7C7; Thu, 17 Sep 2020 15:14:19 +0200 (CEST) Date: Thu, 17 Sep 2020 15:14:19 +0200 From: David Sterba To: syzbot Cc: clm@fb.com, dsterba@suse.com, josef@toxicpanda.com, linux-btrfs@vger.kernel.org, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Subject: Re: kernel BUG at lib/string.c:LINE! (5) Message-ID: <20200917131419.GU1791@twin.jikos.cz> Reply-To: dsterba@suse.cz Mail-Followup-To: dsterba@suse.cz, syzbot , clm@fb.com, dsterba@suse.com, josef@toxicpanda.com, linux-btrfs@vger.kernel.org, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com References: <000000000000a61d6b05af580e62@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <000000000000a61d6b05af580e62@google.com> User-Agent: Mutt/1.5.23.1-rc1 (2014-03-12) Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Sep 15, 2020 at 04:00:21AM -0700, syzbot wrote: > Hello, > > syzbot found the following issue on: > > HEAD commit: e4c26faa Merge tag 'usb-5.9-rc5' of git://git.kernel.org/p.. > git tree: upstream > console output: https://syzkaller.appspot.com/x/log.txt?x=13b17bed900000 > kernel config: https://syzkaller.appspot.com/x/.config?x=c61610091f4ca8c4 > dashboard link: https://syzkaller.appspot.com/bug?extid=e864a35d361e1d4e29a5 > compiler: gcc (GCC) 10.1.0-syz 20200507 > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=177582be900000 > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=13deb2b5900000 > > IMPORTANT: if you fix the issue, please add the following tag to the commit: > Reported-by: syzbot+e864a35d361e1d4e29a5@syzkaller.appspotmail.com #syz fix: btrfs: fix overflow when copying corrupt csums for a message