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=-8.7 required=3.0 tests=BAYES_00,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 BE75EC4332B for ; Wed, 24 Feb 2021 13:38:28 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9F06F64E6C for ; Wed, 24 Feb 2021 13:38:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237181AbhBXNew (ORCPT ); Wed, 24 Feb 2021 08:34:52 -0500 Received: from mail-il1-f199.google.com ([209.85.166.199]:34271 "EHLO mail-il1-f199.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235572AbhBXM6t (ORCPT ); Wed, 24 Feb 2021 07:58:49 -0500 Received: by mail-il1-f199.google.com with SMTP id c16so1457099ile.1 for ; Wed, 24 Feb 2021 04:58:33 -0800 (PST) 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=9jxPZuiCA7jaDkmkeef5PEjzR4rry7NtmgRm8f+yUDg=; b=BCHLaI5MeNHS+YLnK7EWEDLZed+FkRd0AiJwJpqmFATt6o+Yqp4XIIkMbx2iVfjAMn Zld7e1X+ciN1WKwftuH3B0dGOkRLo52RSp80EI8Kthkoqqx4SQHggGnMAcg05tS+nzTY mITYcd5FUPQMRZMy9+kidfwFErgDF7/1aK5h2Qa5rGw5H/lHNwkv7M1gNPW3nFbc8eKE zHGJx1NtI5xNfwdrb9ztQkQaloAWrJKX+zZRHSPZLLf7CvmQ3z/sKkxu0KBLhTujkFfr Gur+ZmPXqc/Jpb19r+75ZWUQ+PkEYCPy//alDxNT5rS5pYv0ZsXeRoLc5l0dO0r4SPoz CMrA== X-Gm-Message-State: AOAM53081D9iYcycWoUw7mXBkHjvy4xhlJIFzkDqJEN3QQp/HMvvbRyQ hMFaESZVpluyUSG0gpaC7KriGMpOno5vH2E7/2JIdHexvXCj X-Google-Smtp-Source: ABdhPJxcfzef5JCwn2Lw5QKonBcY1+Wcl2z02Gc9BPGuIFCres4pcMzhrJkgS0NepGxc+FTfhmXSkMfR4LV4xsUl0+nR7YmDeVug MIME-Version: 1.0 X-Received: by 2002:a6b:4a0e:: with SMTP id w14mr24411528iob.140.1614171488521; Wed, 24 Feb 2021 04:58:08 -0800 (PST) Date: Wed, 24 Feb 2021 04:58:08 -0800 In-Reply-To: <0000000000005ccf1b05b7665adc@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000002e14c105bc14962e@google.com> Subject: Re: BUG: unable to handle kernel NULL pointer dereference in call_rcu From: syzbot To: adobriyan@gmail.com, akpm@linux-foundation.org, andreyknvl@google.com, aryabinin@virtuozzo.com, dvyukov@google.com, elver@google.com, glider@google.com, gustavoars@kernel.org, linux-kernel@vger.kernel.org, longman@redhat.com, sfr@canb.auug.org.au, syzkaller-bugs@googlegroups.com, torvalds@linux-foundation.org, vincenzo.frascino@arm.com, vvs@virtuozzo.com, walter-zh.wu@mediatek.com Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org syzbot has bisected this issue to: commit 97593cad003c668e2532cb2939a24a031f8de52d Author: Andrey Konovalov Date: Tue Dec 22 20:03:28 2020 +0000 kasan: sanitize objects when metadata doesn't fit bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=106689b6d00000 start commit: 614cb589 Merge tag 'acpi-5.11-rc1-2' of git://git.kernel.o.. git tree: upstream final oops: https://syzkaller.appspot.com/x/report.txt?x=126689b6d00000 console output: https://syzkaller.appspot.com/x/log.txt?x=146689b6d00000 kernel config: https://syzkaller.appspot.com/x/.config?x=bf519e1e96191576 dashboard link: https://syzkaller.appspot.com/bug?extid=9d3ede723bdc58553f13 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=11830e93500000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=13d92057500000 Reported-by: syzbot+9d3ede723bdc58553f13@syzkaller.appspotmail.com Fixes: 97593cad003c ("kasan: sanitize objects when metadata doesn't fit") For information about bisection process see: https://goo.gl/tpsmEJ#bisection