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=-5.4 required=3.0 tests=FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 52383C48BD5 for ; Tue, 25 Jun 2019 08:55:02 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 27067214DA for ; Tue, 25 Jun 2019 08:55:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730979AbfFYIzB (ORCPT ); Tue, 25 Jun 2019 04:55:01 -0400 Received: from mail-io1-f69.google.com ([209.85.166.69]:47995 "EHLO mail-io1-f69.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727770AbfFYIzB (ORCPT ); Tue, 25 Jun 2019 04:55:01 -0400 Received: by mail-io1-f69.google.com with SMTP id r27so25527482iob.14 for ; Tue, 25 Jun 2019 01:55:01 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:date:in-reply-to:message-id:subject :from:to; bh=Zjzrp6Z1yIYEzVPtYsq/bEDymAlSPVUgkpHVJlksCG8=; b=IgsAJbpJNJOGrxwLJ2Wz97qK1kFoKvz8DgWSpfnzmShL1UHMrHsRmYC8ga5LX8yPdP ft41qwrR/Qe+NkABaI/a60GUxjzupanb2KGl5A5CG756LQtnPgNjxqdhOZMKMU98H4s+ fhHDQIo2sDDsKCm0K65r01btTyG2LSlSLLH7Jf8vJHLEpiXoPm/eoYAeUO1uxrH3UBYw eAiJbmoZJUGeedIRm34/b8N/xQ4YFyD4Z7xZtUwVgn8Eqs4ckwMeqAZUin+voDn0QLY5 9STDrmaDYDjldNiH6mC0Vsl+CUx/UdBJGNiQDOGRqpVhRF9exEA3pNaTEEDJ19phNFhE f3iw== X-Gm-Message-State: APjAAAVgfCjVnoGoMDww3Xya8VGAKFaGnQB0C9hlgeFC8LBn5Txxe220 RCDSYjH2fwRtzFqRh8rY0yVzTJVCpzkHLZ3Bxf7mdjEgv0gB X-Google-Smtp-Source: APXvYqymIq7V92AiFr4YVas8U2D1869nxSpTalL7qPQms4TCQUQwzhr0aPenrnKgB5vpNPbSMZ1tFsnqEqu7rwuIWkHfkUg8yVy8 MIME-Version: 1.0 X-Received: by 2002:a6b:c80a:: with SMTP id y10mr7502351iof.170.1561452900713; Tue, 25 Jun 2019 01:55:00 -0700 (PDT) Date: Tue, 25 Jun 2019 01:55:00 -0700 In-Reply-To: <0000000000009ad686058bc12956@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000007b0e26058c2215d3@google.com> Subject: Re: possible deadlock in console_trylock_spinning From: syzbot To: gregkh@linuxfoundation.org, jamorris@linux.microsoft.com, jmorris@namei.org, jslaby@suse.com, linux-kernel@vger.kernel.org, linux-security-module@vger.kernel.org, penguin-kernel@I-love.SAKURA.ne.jp, penguin-kernel@i-love.sakura.ne.jp, serge@hallyn.com, syzkaller-bugs@googlegroups.com, takedakn@nttdata.co.jp Content-Type: text/plain; charset="UTF-8"; format=flowed; delsp=yes Sender: owner-linux-security-module@vger.kernel.org Precedence: bulk List-ID: syzbot has bisected this bug to: commit e80b18599a39a625bc8b2e39ba3004a62f78805a Author: Tetsuo Handa Date: Fri Apr 12 11:04:54 2019 +0000 tomoyo: Add a kernel config option for fuzzing testing. bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=156e43cea00000 start commit: abf02e29 Merge tag 'pm-5.2-rc6' of git://git.kernel.org/pu.. git tree: upstream final crash: https://syzkaller.appspot.com/x/report.txt?x=176e43cea00000 console output: https://syzkaller.appspot.com/x/log.txt?x=136e43cea00000 kernel config: https://syzkaller.appspot.com/x/.config?x=28ec3437a5394ee0 dashboard link: https://syzkaller.appspot.com/bug?extid=fc1da0f1a577d15b64fc syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1357add6a00000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1611ac89a00000 Reported-by: syzbot+fc1da0f1a577d15b64fc@syzkaller.appspotmail.com Fixes: e80b18599a39 ("tomoyo: Add a kernel config option for fuzzing testing.") For information about bisection process see: https://goo.gl/tpsmEJ#bisection