BUG at fs/jfs/jfs_logmgr.c:1585 assert(list_empty(&log->cqueue))
------------[ cut here ]------------
kernel BUG at fs/jfs/jfs_logmgr.c:1585!
Oops: invalid opcode: 0000 [#1] SMP KASAN PTI
CPU: 0 UID: 0 PID: 14648 Comm: syz.2.1021 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
RIP: 0010:jfs_flush_journal+0xf2b/0xf50 fs/jfs/jfs_logmgr.c:1585
Code: e9 9e f5 ff ff e8 e5 5c 6c fe 48 c7 c7 00 5a 6b 8b 48 c7 c6 00 55 6b 8b ba 31 06 00 00 48 c7 c1 40 5a 6b 8b e8 16 a7 cf fd 90 <0f> 0b e8 be 5c 6c fe bf 02 00 00 00 e8 84 89 3b fe e9 a9 f7 ff ff
RSP: 0018:ffffc90005ddfb40 EFLAGS: 00010246
RAX: 0000000000000040 RBX: dffffc0000000000 RCX: 7561d9bc22774e00
RDX: ffffc9001a000000 RSI: 0000000000005a74 RDI: 0000000000005a75
RBP: ffffc90005ddfc70 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: fffff52000bbbf19 R12: 00000000000000c7
R13: ffff888067282218 R14: ffff888067282000 R15: ffff8880672822d8
FS:  00007ffa621766c0(0000) GS:ffff8881263a1000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f83e005beb8 CR3: 000000005de14000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 jfs_umount_rw+0x75/0x130 fs/jfs/jfs_umount.c:144
 jfs_reconfigure+0x6d3/0x990 fs/jfs/super.c:421
 reconfigure_super+0x232/0x8f0 fs/super.c:1080
 do_remount fs/namespace.c:3403 [inline]
 path_mount+0xd4b/0x1040 fs/namespace.c:4149
 do_mount fs/namespace.c:4170 [inline]
 __do_sys_mount fs/namespace.c:4386 [inline]
 __se_sys_mount+0x31d/0x420 fs/namespace.c:4363
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7ffa63f1ce59
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:00007ffa62176028 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007ffa64195fa0 RCX: 00007ffa63f1ce59
RDX: 0000000000000000 RSI: 0000200000000100 RDI: 0000000000000000
RBP: 00007ffa63fb2d6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000021 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffa64196038 R14: 00007ffa64195fa0 R15: 00007ffc63bd5ec8
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:jfs_flush_journal+0xf2b/0xf50 fs/jfs/jfs_logmgr.c:1585
Code: e9 9e f5 ff ff e8 e5 5c 6c fe 48 c7 c7 00 5a 6b 8b 48 c7 c6 00 55 6b 8b ba 31 06 00 00 48 c7 c1 40 5a 6b 8b e8 16 a7 cf fd 90 <0f> 0b e8 be 5c 6c fe bf 02 00 00 00 e8 84 89 3b fe e9 a9 f7 ff ff
RSP: 0018:ffffc90005ddfb40 EFLAGS: 00010246
RAX: 0000000000000040 RBX: dffffc0000000000 RCX: 7561d9bc22774e00
RDX: ffffc9001a000000 RSI: 0000000000005a74 RDI: 0000000000005a75
RBP: ffffc90005ddfc70 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: fffff52000bbbf19 R12: 00000000000000c7
R13: ffff888067282218 R14: ffff888067282000 R15: ffff8880672822d8
FS:  00007ffa621766c0(0000) GS:ffff8881263a1000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f83e005beb8 CR3: 000000005de14000 CR4: 00000000003526f0