BUG at fs/jfs/jfs_logmgr.c:1588 assert(list_empty(&log->cqueue))
------------[ cut here ]------------
kernel BUG at fs/jfs/jfs_logmgr.c:1588!
Oops: invalid opcode: 0000 [#1] SMP KASAN PTI
CPU: 1 UID: 0 PID: 5838 Comm: syz-executor Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
RIP: 0010:jfs_flush_journal+0xeb2/0xed0 fs/jfs/jfs_logmgr.c:1588
Code: e9 07 f6 ff ff e8 6e a6 86 fe 48 c7 c7 60 ac 43 8b 48 c7 c6 60 a7 43 8b ba 34 06 00 00 48 c7 c1 a0 ac 43 8b e8 df 88 ef fd 90 <0f> 0b f3 0f 1e fa e8 43 a6 86 fe bf 02 00 00 00 e8 69 02 58 fe e9
RSP: 0018:ffffc90004b17980 EFLAGS: 00010246
RAX: 0000000000000040 RBX: dffffc0000000000 RCX: cf35cb28d61e5700
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90004b17ab0 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: fffff52000962ed5 R12: 00000000000000c7
R13: ffff8880290a6218 R14: ffff8880290a6000 R15: ffff8880290a62d8
FS:  0000000000000000(0000) GS:ffff8881269bc000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055558c702608 CR3: 000000005624a000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 jfs_umount+0x178/0x3c0 fs/jfs/jfs_umount.c:58
 jfs_put_super+0x8c/0x190 fs/jfs/super.c:194
 generic_shutdown_super+0x132/0x2c0 fs/super.c:643
 kill_block_super+0x44/0x90 fs/super.c:1766
 deactivate_locked_super+0xbc/0x130 fs/super.c:474
 cleanup_mnt+0x425/0x4c0 fs/namespace.c:1375
 task_work_run+0x1d4/0x260 kernel/task_work.c:227
 exit_task_work include/linux/task_work.h:40 [inline]
 do_exit+0x6b5/0x2300 kernel/exit.c:961
 do_group_exit+0x21c/0x2d0 kernel/exit.c:1102
 __do_sys_exit_group kernel/exit.c:1113 [inline]
 __se_sys_exit_group kernel/exit.c:1111 [inline]
 __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1111
 x64_sys_call+0x21f7/0x2200 arch/x86/include/generated/asm/syscalls_64.h:232
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fbf3c90eba9
Code: Unable to access opcode bytes at 0x7fbf3c90eb7f.
RSP: 002b:00007ffc7e3d5598 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 00007fbf3c991c2a RCX: 00007fbf3c90eba9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001
RBP: 0000000000000002 R08: 00007ffc7e3d3337 R09: 00007ffc7e3d6850
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc7e3d6850
R13: 00007fbf3c991c05 R14: 0000555580b524a8 R15: 00007ffc7e3d7920
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:jfs_flush_journal+0xeb2/0xed0 fs/jfs/jfs_logmgr.c:1588
Code: e9 07 f6 ff ff e8 6e a6 86 fe 48 c7 c7 60 ac 43 8b 48 c7 c6 60 a7 43 8b ba 34 06 00 00 48 c7 c1 a0 ac 43 8b e8 df 88 ef fd 90 <0f> 0b f3 0f 1e fa e8 43 a6 86 fe bf 02 00 00 00 e8 69 02 58 fe e9
RSP: 0018:ffffc90004b17980 EFLAGS: 00010246
RAX: 0000000000000040 RBX: dffffc0000000000 RCX: cf35cb28d61e5700
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90004b17ab0 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: fffff52000962ed5 R12: 00000000000000c7
R13: ffff8880290a6218 R14: ffff8880290a6000 R15: ffff8880290a62d8
FS:  0000000000000000(0000) GS:ffff8881269bc000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055558c702608 CR3: 000000005624a000 CR4: 00000000003526f0