From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-io1-f69.google.com (mail-io1-f69.google.com [209.85.166.69]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id A16962F25 for ; Sat, 5 Feb 2022 22:39:07 +0000 (UTC) Received: by mail-io1-f69.google.com with SMTP id p65-20020a6bbf44000000b00604c0757591so6282429iof.6 for ; Sat, 05 Feb 2022 14:39:07 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:date:in-reply-to:message-id:subject :from:to; bh=Up70b3+pLCOVWXRm8xQGxM6soIoNpamDU4Qviu67t6s=; b=W+qcKyTsNWdHShAijbiXOJWtJQrB3c2YnhKOLW+UwvYEjQFRHPhDo4kZ6tcGOZBn5i Je0hD0cDxYy03f9YAOK5aIG6Za1Ryc+c0Ujh4Kv+juw6xPfCQ9EV59JDQcFTcMIVVzkv Nh+ZIJvyBTC/+mLRKbr7z/K141GuGIyulkW0pwtWiNiNfFArx+JYPAIS5trLMsW/9RMt U6bBUoAkBSwgtFd8r9T2b+If+80ELRPnTWVJzuRHO32bDb6pK8A15kdx8SxDCIMRCG2b eMSbkpryCGQ5Quw+eyvNn4m+y3B2DvA/E/POOhnuvPjiA3F5dRXbaghCSMjJpZkUjY2k oJng== X-Gm-Message-State: AOAM533mW4iaigY+ODaLK8xkZrvMVOD2kSOR2LyyOT0L1Zpt12615FJM 1TkFN+E4eqquhFUa9KrEj69NKivH9Gw3KtoOuUm1Kcj8XO8g X-Google-Smtp-Source: ABdhPJwhXVky5srzWBAsfF1q1R4zzGYARXATF9jvvYWrr7M3ptKfEHCqn/PdpC+3ZcIv6FBX3fauuvSw8FwpN57klvVaV++1frpl Precedence: bulk X-Mailing-List: llvm@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a92:cda9:: with SMTP id g9mr2419625ild.29.1644100746734; Sat, 05 Feb 2022 14:39:06 -0800 (PST) Date: Sat, 05 Feb 2022 14:39:06 -0800 In-Reply-To: <0000000000001e0ba105d5c2dede@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000fbf22d05d74d08fb@google.com> Subject: Re: [syzbot] general protection fault in ext4_fill_super From: syzbot To: adilger.kernel@dilger.ca, cmaiolino@redhat.com, lczerner@redhat.com, linux-ext4@vger.kernel.org, linux-kernel@vger.kernel.org, llvm@lists.linux.dev, nathan@kernel.org, ndesaulniers@google.com, syzkaller-bugs@googlegroups.com, tytso@mit.edu Content-Type: text/plain; charset="UTF-8" syzbot has bisected this issue to: commit cebe85d570cf84804e848332d6721bc9e5300e07 Author: Lukas Czerner Date: Wed Oct 27 14:18:56 2021 +0000 ext4: switch to the new mount api bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=14902978700000 start commit: 0457e5153e0e Merge tag 'for-linus' of git://git.kernel.org.. git tree: upstream final oops: https://syzkaller.appspot.com/x/report.txt?x=16902978700000 console output: https://syzkaller.appspot.com/x/log.txt?x=12902978700000 kernel config: https://syzkaller.appspot.com/x/.config?x=cd57c0f940a9a1ec dashboard link: https://syzkaller.appspot.com/bug?extid=138c9e58e3cb22eae3b4 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=17f7004fb00000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=178cf108700000 Reported-by: syzbot+138c9e58e3cb22eae3b4@syzkaller.appspotmail.com Fixes: cebe85d570cf ("ext4: switch to the new mount api") For information about bisection process see: https://goo.gl/tpsmEJ#bisection