list_add corruption. next is NULL.
------------[ cut here ]------------
kernel BUG at lib/list_debug.c:28!
Internal error: Oops - BUG: 00000000f2000800 [#1]  SMP
Modules linked in:
CPU: 0 UID: 0 PID: 100 Comm: jfsCommit Not tainted syzkaller #0 PREEMPT 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025
pstate: 634000c5 (nZCv daIF +PAN -UAO +TCO +DIT -SSBS BTYPE=--)
pc : __list_add_valid_or_report+0xdc/0x148 lib/list_debug.c:27
lr : __list_add_valid_or_report+0xdc/0x148 lib/list_debug.c:27
sp : ffff800099c47a40
x29: ffff800099c47a40 x28: 0000000000000000 x27: 0000000000000000
x26: 00000000ffffffff x25: 0000000000000020 x24: ffff0000d2db14e8
x23: ffff0000e1d8a280 x22: dfff800000000000 x21: ffff0000d2db14d8
x20: ffff800099a19230 x19: 0000000000000000 x18: 1fffe0003377d090
x17: ffff80008f86e000 x16: ffff800082e5e68c x15: 0000000000000001
x14: 1ffff00013388ec4 x13: 0000000000000000 x12: 0000000000000000
x11: ffff700013388ec5 x10: 0000000000ff0100 x9 : 3a4d076ec099b500
x8 : 3a4d076ec099b500 x7 : ffff8000805761f8 x6 : 0000000000000000
x5 : 0000000000000001 x4 : 0000000000000000 x3 : ffff8000807f1260
x2 : 0000000000000001 x1 : 0000000100000001 x0 : 0000000000000022
Call trace:
 __list_add_valid_or_report+0xdc/0x148 lib/list_debug.c:27 (P)
 __list_add_valid include/linux/list.h:96 [inline]
 __list_add include/linux/list.h:158 [inline]
 list_add include/linux/list.h:177 [inline]
 dbUpdatePMap+0x6cc/0xd48 fs/jfs/jfs_dmap.c:577
 txAllocPMap+0x4a0/0x5d4 fs/jfs/jfs_txnmgr.c:2426
 txUpdateMap+0x744/0x8d0 fs/jfs/jfs_txnmgr.c:2364
 txLazyCommit fs/jfs/jfs_txnmgr.c:2665 [inline]
 jfs_lazycommit+0x394/0x94c fs/jfs/jfs_txnmgr.c:2734
 kthread+0x5fc/0x75c kernel/kthread.c:463
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:844
Code: d4210000 f0043a40 91388000 974a983d (d4210000) 
---[ end trace 0000000000000000 ]---