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, URIBL_BLOCKED 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 A73D6C4338F for ; Tue, 17 Aug 2021 22:21:13 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 86EFA60524 for ; Tue, 17 Aug 2021 22:21:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236069AbhHQWVo (ORCPT ); Tue, 17 Aug 2021 18:21:44 -0400 Received: from mail-io1-f71.google.com ([209.85.166.71]:51754 "EHLO mail-io1-f71.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229729AbhHQWVn (ORCPT ); Tue, 17 Aug 2021 18:21:43 -0400 Received: by mail-io1-f71.google.com with SMTP id p22-20020a5d8d160000b02905a150b13b20so16099ioj.18 for ; Tue, 17 Aug 2021 15:21:09 -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=umDmu+4hB/JDNHdbTJk5sLucv5/bOLVHY7bndijJFTA=; b=B4xxtDpt7Q8kpAAWowr8HZYBS6BQXcpmB1vN9b95x/WrCS8Q8ZX1JnRt5v6uLABpl3 LHjpkCktfPq0sc/ufdIBQIzHr4mWFO9gnvZQJSd9ZRUGKi4vXnFNuR836zCvC0WuXq/T QVy6f+4WPk3E3xFZbnOoecXoFEBOZlVOrB15JdgZckK43HMo6S4ZS8qBkgs+IDlXPo4V 4r5O8r+7YrUVthFsnhVahwkdkG3Ru+uKGXrLwN2/lffpiN3aX8qJ5N+iWtupWzRlUHCC d1bFEtoZYIq29xiWAma5eDM0QT64l9RU/sE7vSuVUs7TSvgTamXpHCr7K3dl2JW8t6Bh SN3A== X-Gm-Message-State: AOAM531llc91WC49elHibjRtO9xvwaJLxEtAOAVJx7Lf5CapMCLOGy7k jcpA6D9xe7TeTL3BcMYpx4h4/UqSdF/1uIMg09lvuy9gNFM/ X-Google-Smtp-Source: ABdhPJzaDcwt4eaiB4ndqrwZbsMFOJdKO3Yu0KMKfK1Kr5midZbCbjKzgjJY5yO6zqRjKZKrk/3nxoTRvoMMG4XwWaB7JHSI/tXL MIME-Version: 1.0 X-Received: by 2002:a05:6e02:547:: with SMTP id i7mr3835170ils.102.1629238869490; Tue, 17 Aug 2021 15:21:09 -0700 (PDT) Date: Tue, 17 Aug 2021 15:21:09 -0700 In-Reply-To: <00000000000080486305c9a8f818@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <00000000000012030e05c9c8bc85@google.com> Subject: Re: [syzbot] KFENCE: use-after-free in kvm_fastop_exception From: syzbot To: davem@davemloft.net, johan.hedberg@gmail.com, kuba@kernel.org, linux-bluetooth@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, luiz.dentz@gmail.com, marcel@holtmann.org, mathew.j.martineau@linux.intel.com, matthieu.baerts@tessares.net, netdev@vger.kernel.org, pabeni@redhat.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-kernel@vger.kernel.org syzbot has bisected this issue to: commit c4512c63b1193c73b3f09c598a6d0a7f88da1dd8 Author: Matthieu Baerts Date: Fri Jun 25 21:25:22 2021 +0000 mptcp: fix 'masking a bool' warning bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=122b0655300000 start commit: b9011c7e671d Add linux-next specific files for 20210816 git tree: linux-next final oops: https://syzkaller.appspot.com/x/report.txt?x=112b0655300000 console output: https://syzkaller.appspot.com/x/log.txt?x=162b0655300000 kernel config: https://syzkaller.appspot.com/x/.config?x=a245d1aa4f055cc1 dashboard link: https://syzkaller.appspot.com/bug?extid=7b938780d5deeaaf938f syz repro: https://syzkaller.appspot.com/x/repro.syz?x=157a41ee300000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=14f78ff9300000 Reported-by: syzbot+7b938780d5deeaaf938f@syzkaller.appspotmail.com Fixes: c4512c63b119 ("mptcp: fix 'masking a bool' warning") For information about bisection process see: https://goo.gl/tpsmEJ#bisection