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=-3.7 required=3.0 tests=BAYES_00,FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no 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 3E903C433E6 for ; Sat, 9 Jan 2021 07:21:11 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 0FAC023A69 for ; Sat, 9 Jan 2021 07:21:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726077AbhAIHUt (ORCPT ); Sat, 9 Jan 2021 02:20:49 -0500 Received: from mail-il1-f197.google.com ([209.85.166.197]:39607 "EHLO mail-il1-f197.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725850AbhAIHUt (ORCPT ); Sat, 9 Jan 2021 02:20:49 -0500 Received: by mail-il1-f197.google.com with SMTP id f2so12450228ils.6 for ; Fri, 08 Jan 2021 23:20:34 -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=pwlzMsvPhHWdCYhkogMUXxJRp4tYIVlfkKGPQ7+nxL0=; b=PpFUFSsM+5gOiI5iRtLV2+Q+VbX09LRkcM2H1vRn+0dr9zYDBkdpzy6Tm9NIfcARGy f01AxApZbo66nfWeY0B8YuODq0kF3y0GXmxu3+F+xzIMX5OlLHgw+HmYRhC27QRUAo9L /xibOu8OYleaPpRgB1zQdz52y2VTmNf+x1POhhBDbTfOUklldrTnzaFt7IFlld2kAzgk yGodd7sa1OKKeZKG6qGbBEqBgxjanudV3skMPBEGhBNcZiqsmeAMJrglkl6J8iAkrRue 7kFm9h2y+WsmLTSxDuL+jYB5++5xLndmoai+1WhJel3WA1S1KDBMHmhYf08/gyZbZLBV 53TA== X-Gm-Message-State: AOAM533mHjmsO/YhJCsORahKM3V2xambEp6ZUG69xrEtq6i+yJGzd7o4 yVl6Z3yChwGZ2C+kt58qtBK+pr95nRLKBHvUVCthnESaew76 X-Google-Smtp-Source: ABdhPJwA+Mc5PFaC0yCPB3v9+L1044sATU8eG2faM5z6IFbIQfEP8SliAOyimFLXQ8J471KSRH0b3iip2QE9qZrE/Flj+Aslg+9g MIME-Version: 1.0 X-Received: by 2002:a05:6602:93:: with SMTP id h19mr8312686iob.59.1610176808615; Fri, 08 Jan 2021 23:20:08 -0800 (PST) Date: Fri, 08 Jan 2021 23:20:08 -0800 In-Reply-To: <000000000000b0bbc905b05ab8d5@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000b4098905b872801e@google.com> Subject: Re: BUG: unable to handle kernel NULL pointer dereference in __lookup_slow From: syzbot To: jack@suse.cz, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, rkovhaev@gmail.com, syzkaller-bugs@googlegroups.com, viro@zeniv.linux.org.uk Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org syzbot suspects this issue was fixed by commit: commit d24396c5290ba8ab04ba505176874c4e04a2d53c Author: Rustam Kovhaev Date: Sun Nov 1 14:09:58 2020 +0000 reiserfs: add check for an invalid ih_entry_count bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=111480e7500000 start commit: a68a0262 mm/madvise: remove racy mm ownership check git tree: upstream kernel config: https://syzkaller.appspot.com/x/.config?x=e597c2b53c984cd8 dashboard link: https://syzkaller.appspot.com/bug?extid=3db80bbf66b88d68af9d syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1737b8a7500000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1697246b500000 If the result looks correct, please mark the issue as fixed by replying with: #syz fix: reiserfs: add check for an invalid ih_entry_count For information about bisection process see: https://goo.gl/tpsmEJ#bisection