list_add corruption. next is NULL.
------------[ cut here ]------------
kernel BUG at lib/list_debug.c:26!
Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP
Modules linked in:
CPU: 1 PID: 93 Comm: jfsCommit Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025
pstate: 624000c5 (nZCv daIF +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
pc : __list_add_valid+0xdc/0x110 lib/list_debug.c:25
lr : __list_add_valid+0xdc/0x110 lib/list_debug.c:25
sp : ffff80001cfe7ac0
x29: ffff80001cfe7ac0 x28: 0000000000000004 x27: ffff0000d8b0a000
x26: dfff800000000000 x25: 0000000000000004 x24: 0000000000000000
x23: ffff0000d8b0a010 x22: 0000000000000020 x21: 0000000000000000
x20: ffff80001fd04230 x19: 0000000000000000 x18: ffff800011a5bd40
x17: 0000000000000000 x16: ffff8000082e9244 x15: 0000000000000000
x14: 00000000ffffffff x13: 0000000000000001 x12: 0000000000ff0100
x11: ff0080000830b6e8 x10: 0000000000000000 x9 : 8827cb4d194dee00
x8 : 8827cb4d194dee00 x7 : 0000000000000001 x6 : 0000000000000001
x5 : ffff80001cfe7598 x4 : ffff800015134e00 x3 : ffff80000a84818c
x2 : ffff00019f75ed10 x1 : 0000000100000001 x0 : 0000000000000022
Call trace:
 __list_add_valid+0xdc/0x110 lib/list_debug.c:25
 __list_add include/linux/list.h:69 [inline]
 list_add include/linux/list.h:88 [inline]
 dbUpdatePMap+0x5f0/0xc40 fs/jfs/jfs_dmap.c:577
 txAllocPMap+0x4a0/0x5d4 fs/jfs/jfs_txnmgr.c:2426
 txUpdateMap+0x628/0x79c fs/jfs/jfs_txnmgr.c:2364
 txLazyCommit fs/jfs/jfs_txnmgr.c:2665 [inline]
 jfs_lazycommit+0x378/0x918 fs/jfs/jfs_txnmgr.c:2733
 kthread+0x250/0x2d8 kernel/kthread.c:376
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850
Code: d4210000 9003b5a0 91398000 95be2cfa (d4210000) 
---[ end trace 0000000000000000 ]---