BUG at fs/jfs/jfs_logmgr.c:1587 assert(list_empty(&log->cqueue))
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kernel BUG at fs/jfs/jfs_logmgr.c:1587!
Oops: invalid opcode: 0000 [#1] SMP KASAN PTI
CPU: 1 UID: 0 PID: 6891 Comm: syz.8.97 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 bc 70 fe 48 c7 c7 40 b0 8a 8b 48 c7 c6 40 ab 8a 8b ba 33 06 00 00 48 c7 c1 80 b0 8a 8b e8 94 d1 d3 fd 90 <0f> 0b e8 ec bb 70 fe bf 02 00 00 00 e8 f2 04 40 fe e9 10 f8 ff ff
RSP: 0000:ffffc900051a7b20 EFLAGS: 00010246
RAX: 0000000000000040 RBX: dffffc0000000000 RCX: f2e38a0482245a00
RDX: ffffc90006541000 RSI: 0000000000005726 RDI: 0000000000005727
RBP: ffffc900051a7c58 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: fffff52000a34f15 R12: 00000000000000c7
R13: ffff8880328bba18 R14: ffff8880328bb800 R15: ffff8880328bbad8
FS: 00007efc93a0e6c0(0000) GS:ffff888126440000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f0259159000 CR3: 0000000051158000 CR4: 00000000003526f0
Call Trace:
<TASK>
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: 0033:0x7efc957bc799
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:00007efc93a0e028 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007efc95a35fa0 RCX: 00007efc957bc799
RDX: 0000000000000000 RSI: 0000200000000100 RDI: 0000000000000000
RBP: 00007efc95852bd9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000021 R11: 0000000000000246 R12: 0000000000000000
R13: 00007efc95a36038 R14: 00007efc95a35fa0 R15: 00007ffdfc042408
</TASK>
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 bc 70 fe 48 c7 c7 40 b0 8a 8b 48 c7 c6 40 ab 8a 8b ba 33 06 00 00 48 c7 c1 80 b0 8a 8b e8 94 d1 d3 fd 90 <0f> 0b e8 ec bb 70 fe bf 02 00 00 00 e8 f2 04 40 fe e9 10 f8 ff ff
RSP: 0000:ffffc900051a7b20 EFLAGS: 00010246
RAX: 0000000000000040 RBX: dffffc0000000000 RCX: f2e38a0482245a00
RDX: ffffc90006541000 RSI: 0000000000005726 RDI: 0000000000005727
RBP: ffffc900051a7c58 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: fffff52000a34f15 R12: 00000000000000c7
R13: ffff8880328bba18 R14: ffff8880328bb800 R15: ffff8880328bbad8
FS: 00007efc93a0e6c0(0000) GS:ffff888126440000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f0259159000 CR3: 0000000051158000 CR4: 00000000003526f0