From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-oo1-f69.google.com (mail-oo1-f69.google.com [209.85.161.69]) (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 1E1232BDC16 for ; Sun, 1 Mar 2026 21:09:21 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.161.69 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772399363; cv=none; b=fCexV5t+dP2NzKAc+/q12SjTExoK24DbUymy4U17PKlEyMykX71vFBU9KQshHoEj1QJsA0bttfqlD3Ae75Fe1AnartLd/5OH0J5I0aBj+WK8XEEBiab3r/NYEXYpd7I0r1oW2URRDGu1dk37fKhjwHtba5MnPRsonW+jw9WmpFI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772399363; c=relaxed/simple; bh=d4sbeT7aWUjq4CffzC0g8XcSYIGY6/rsi+V9ZiAgmwA=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=GYrQDjU4KCh82YNpfW7Mh0jmZrwRL2EpEi6qQMWoJV8PnKVxxNXA7Y1KZMFKORqpqKD9+OZb2Z7PIQ7CAnOSe6iD/jvlWPd/+xf3ApMt34i7ALyvAAbzTEtrgA+2A+1Aq2zk+c//jhnYZHIRlgcBFtU4Oe+YLQss2P902O/IJPI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com; arc=none smtp.client-ip=209.85.161.69 Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com Received: by mail-oo1-f69.google.com with SMTP id 006d021491bc7-679caf7ec07so82976142eaf.1 for ; Sun, 01 Mar 2026 13:09:21 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1772399361; x=1773004161; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=fEQ0iAya6HPisiCNC02e+MNaco1uu24wTEBT6z+ciHs=; b=ok45+BIy5YloVRyWfLr57SqLgSzI33wMvk78sTpMB0mujbUdaPVQ0hRuXuGxDJ24Al SytSSY/JW2BDsaNe/JK7yf/w20W9SZZVQTGLIIaRzHqo3J1dByoSckCc7Aq9GzM3xi2D 2kVmyJ7HJDUza4GGeh1xbLda0jpITnDC5+Iik/C2MTod/eGXuMGUQtALgFJK/8VdhDDM 6EA9WTzOkoG3RyzqocizjEYyDVBIlF/lMWWIrEyoOQwp5QerqB8dc8LBBhfjCVmUDsYU jkBVfopaKiNYohfSeh9jYICfeHFgdmAZp91dTGMvWE83hbWUpfENNMZ6a5Wbivzzz3uk Shog== X-Forwarded-Encrypted: i=1; AJvYcCXG3JHrk0d4v+XaGSD4r0TtzEZiwDChxkufylCmf+pLI0MgckxGnllC2Zy4laroX/Yr4fiGDeqqq0s9XgQ=@vger.kernel.org X-Gm-Message-State: AOJu0Yyk4RKcj5t6hvXU1zIsDwaj5nR6COA+B51fmYtC/v/wFgZuOw6A 9qNQtCpFf9Y3O8D5bUIK6Wqe2oPutepZhApU8nBSirz6oiFNO2m1MrEDvzf9Wib+ot1eC1BU2a9 3YUMaIbJIJfxqnM/vXCOjFe6fnGZUgUMeoqll8O3KJz2sj2C9iG796bbI7+4= Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6820:3088:b0:677:87ab:a78a with SMTP id 006d021491bc7-679faf4fb6emr5243537eaf.61.1772399361175; Sun, 01 Mar 2026 13:09:21 -0800 (PST) Date: Sun, 01 Mar 2026 13:09:21 -0800 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <69a4ab01.050a0220.3a55be.0069.GAE@google.com> Subject: [syzbot] [jfs?] kernel BUG in jfs_flush_journal (3) From: syzbot To: jfs-discussion@lists.sourceforge.net, linux-kernel@vger.kernel.org, shaggy@kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: d9d32e5bd5a4 Merge tag 'ata-7.0-rc2' of git://git.kernel.o.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=172e80ba580000 kernel config: https://syzkaller.appspot.com/x/.config?x=70fe0401f305d8d4 dashboard link: https://syzkaller.appspot.com/bug?extid=4c8d1f29732a21567e4e compiler: Debian clang version 21.1.8 (++20251221033036+2078da43e25a-1~exp1~20251221153213.50), Debian LLD 21.1.8 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/7b88c2d85ff3/disk-d9d32e5b.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/82848c6df034/vmlinux-d9d32e5b.xz kernel image: https://storage.googleapis.com/syzbot-assets/7a552f182468/bzImage-d9d32e5b.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+4c8d1f29732a21567e4e@syzkaller.appspotmail.com BUG at fs/jfs/jfs_logmgr.c:1587 assert(list_empty(&log->cqueue)) ------------[ cut here ]------------ kernel BUG at fs/jfs/jfs_logmgr.c:1587! Oops: invalid opcode: 0000 [#1] SMP KASAN PTI CPU: 0 UID: 0 PID: 6732 Comm: syz.0.127 Not tainted syzkaller #0 PREEMPT_{RT,(full)} Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026 RIP: 0010:jfs_flush_journal+0xecd/0xef0 fs/jfs/jfs_logmgr.c:1587 Code: e9 ee f5 ff ff e8 13 cd 70 fe 48 c7 c7 40 af 8a 8b 48 c7 c6 40 aa 8a 8b ba 33 06 00 00 48 c7 c1 80 af 8a 8b e8 f4 db d3 fd 90 <0f> 0b e8 ec cc 70 fe bf 02 00 00 00 e8 52 1f 40 fe e9 10 f8 ff ff RSP: 0018:ffffc9000f497b20 EFLAGS: 00010246 RAX: 0000000000000040 RBX: dffffc0000000000 RCX: 1239314d71958c00 RDX: ffffc9000617b000 RSI: 0000000000004dda RDI: 0000000000004ddb RBP: ffffc9000f497c58 R08: 0000000000000000 R09: 0000000000000000 R10: dffffc0000000000 R11: fffff52001e92f15 R12: 00000000000000c7 R13: ffff888036268a18 R14: ffff888036268800 R15: ffff888036268ad8 FS: 00007f31648ae6c0(0000) GS:ffff888126343000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fbaac7c0000 CR3: 0000000036070000 CR4: 00000000003526f0 Call Trace: jfs_umount_rw+0x75/0x130 fs/jfs/jfs_umount.c:134 jfs_reconfigure+0x6f6/0xa00 fs/jfs/super.c:421 reconfigure_super+0x227/0x8a0 fs/super.c:1080 do_remount fs/namespace.c:3391 [inline] path_mount+0xdc5/0x10e0 fs/namespace.c:4151 do_mount fs/namespace.c:4172 [inline] __do_sys_mount fs/namespace.c:4361 [inline] __se_sys_mount+0x31d/0x420 fs/namespace.c:4338 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f316665c629 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f31648ae028 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f31668d5fa0 RCX: 00007f316665c629 RDX: 0000000000000000 RSI: 0000200000000100 RDI: 0000000000000000 RBP: 00007f31666f2b39 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000021 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f31668d6038 R14: 00007f31668d5fa0 R15: 00007ffd55132e68 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:jfs_flush_journal+0xecd/0xef0 fs/jfs/jfs_logmgr.c:1587 Code: e9 ee f5 ff ff e8 13 cd 70 fe 48 c7 c7 40 af 8a 8b 48 c7 c6 40 aa 8a 8b ba 33 06 00 00 48 c7 c1 80 af 8a 8b e8 f4 db d3 fd 90 <0f> 0b e8 ec cc 70 fe bf 02 00 00 00 e8 52 1f 40 fe e9 10 f8 ff ff RSP: 0018:ffffc9000f497b20 EFLAGS: 00010246 RAX: 0000000000000040 RBX: dffffc0000000000 RCX: 1239314d71958c00 RDX: ffffc9000617b000 RSI: 0000000000004dda RDI: 0000000000004ddb RBP: ffffc9000f497c58 R08: 0000000000000000 R09: 0000000000000000 R10: dffffc0000000000 R11: fffff52001e92f15 R12: 00000000000000c7 R13: ffff888036268a18 R14: ffff888036268800 R15: ffff888036268ad8 FS: 00007f31648ae6c0(0000) GS:ffff888126343000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fbaac7c0000 CR3: 0000000036070000 CR4: 00000000003526f0 --- 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 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