From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-oi1-f200.google.com (mail-oi1-f200.google.com [209.85.167.200]) (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 244CF372EDB for ; Sun, 11 Oct 2026 20:50:23 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.167.200 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791751824; cv=none; b=kx99hF5aAQYDuNlvqcHUXaHvVaF1yHfG9an0h0XOHgBw3Hzt91L8+pEGfQajw8A14ywM6VSQcGimgExBXkaZXRxOSUlA9txkcj6oMXbIl3fvSTmnQDfWS0xwEsouJIlvyLQMxM54qsxO2Et2Zx2TwB7JyAae2/0bUiJgpcoN6BU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791751824; c=relaxed/simple; bh=VOMUI7EGgh3ylAYuYLulNkmJ/7OfDzhyWa0Rz4EZ8Qg=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=Y8exPr1tJ3vW9i5t4V/X+2JsRy+ePSSFIJdGu6zC2Ai0sBJm++6dsJQPvvcLqDDgzmIQchyCU+XbHjvZBM3xgYSh8Bo96KGCp3KOG7+Ei/gRyx25UFJJZ5zRCw58rjgschn/xRLXLvE3tSkSbJDAV939+e0zth6U/WgjKeVSqck= ARC-Authentication-Results:i=1; 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AKwUvBxl0MvpOt2wa0AATDBbc6PwL+tJ7RrUU+jQ+JNZg3ME4YZBbWbfwHNpzYrCb11/gLhv99f82oLjnuqa89E=@vger.kernel.org X-Gm-Message-State: AFq9FYJ7EVFaHM365pOROKWwlwIBjju3UmcuAHKaF3P7Qb9OBuaCkMQo HSipFmGiWqtQd0szsl6ujE/z7xHqQ37KpN3QO5Hivgg/HPesRK03SD2fevHouZ5mgQU1GkuJUmF w/Nu+RotiN7Sp6ebGpn2xTqaWXq/qCRGnZdlMFbAEsDRtGMHa6ojMZhTvvmE= Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6808:e84:b0:4d6:9133:cfde with SMTP id 5614622812f47-50b657ec2famr5832006b6e.35.1791751822133; Sun, 11 Oct 2026 13:50:22 -0700 (PDT) Date: Sun, 11 Oct 2026 13:50:22 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6acbf68e.6d14cce4.2677ed.016a.GAE@google.com> Subject: [syzbot] [fs?] WARNING in minix_put_super From: syzbot To: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: b88c841d1164 Merge tag 'input-for-v7.3-rc6' of git://git.k.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=12adc5d1580000 kernel config: https://syzkaller.appspot.com/x/.config?x=7d1b274ca9837366 dashboard link: https://syzkaller.appspot.com/bug?extid=bffc332f376fdab5cef0 compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=13fbc1d1580000 Downloadable assets: disk image (non-bootable): https://storage.googleapis.com/syzbot-assets/d900f083ada3/non_bootable_disk-b88c841d.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/c64cd81f2bae/vmlinux-b88c841d.xz kernel image: https://storage.googleapis.com/syzbot-assets/605b0408da7b/bzImage-b88c841d.xz mounted in repro: https://storage.googleapis.com/syzbot-assets/adc9f1a572c3/mount_10.gz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+bffc332f376fdab5cef0@syzkaller.appspotmail.com ------------[ cut here ]------------ !buffer_uptodate(bh) WARNING: fs/buffer.c:991 at mark_buffer_dirty+0x299/0x410 fs/buffer.c:991, CPU#0: syz-executor/5457 Modules linked in: CPU: 0 UID: 0 PID: 5457 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 RIP: 0010:mark_buffer_dirty+0x299/0x410 fs/buffer.c:991 Code: 4c 89 f7 e8 d9 d5 d7 ff 49 8b 3e be 40 00 00 00 5b 41 5c 41 5e 41 5f 5d e9 34 44 fb ff e8 8f 56 65 ff eb 8c e8 88 56 65 ff 90 <0f> 0b 90 e9 a5 fd ff ff e8 7a 56 65 ff 90 0f 0b 90 e9 cf fd ff ff RSP: 0018:ffffc9000e597c90 EFLAGS: 00010293 RAX: ffffffff8262ca98 RBX: ffff8880468d50e0 RCX: ffff888036f5cb00 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000002 RBP: 0000000000000001 R08: ffff8880468d50e7 R09: 1ffff11008d1aa1c R10: dffffc0000000000 R11: ffffed1008d1aa1d R12: 1ffff1100af668cf R13: ffff888041a50580 R14: ffff888057b34678 R15: ffff888041a505c8 FS: 000055557bc8e500(0000) GS:ffff88808b0b4000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f34db7ef158 CR3: 0000000014819000 CR4: 0000000000352ef0 Call Trace: minix_put_super+0x16d/0x460 fs/minix/inode.c:70 generic_shutdown_super+0x13d/0x2d0 fs/super.c:751 kill_block_super+0x44/0xa0 fs/super.c:1903 deactivate_locked_super+0xbe/0x110 fs/super.c:586 cleanup_mnt+0x204/0x2a0 fs/namespace.c:1392 task_work_run+0x1d9/0x270 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:70 [inline] exit_to_user_mode_loop+0x204/0x770 kernel/entry/common.c:101 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] syscall_exit_to_user_mode include/linux/entry-common.h:343 [inline] do_syscall_64+0x328/0x520 arch/x86/entry/syscall_64.c:89 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f4096b9f417 Code: a2 c7 05 dc 62 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 RSP: 002b:00007ffeab55db28 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 00007f4096c34ccb RCX: 00007f4096b9f417 RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffeab55dbe0 RBP: 00007ffeab55dbe0 R08: 00007ffeab55ebe0 R09: 00000000ffffffff R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffeab55ec70 R13: 00007f4096c34ccb R14: 000000000003a52d R15: 00007ffeab55ecb0 --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@googlegroups.com. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. If the report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title If you want syzbot to run the reproducer, reply with: #syz test: git://repo/address.git branch-or-commit-hash If you attach or paste a git patch, syzbot will apply it before testing. If you want to overwrite report's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the report is a duplicate of another one, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup