------------[ cut here ]------------
WARNING: mm/memcontrol-v1.c:642 at memcg1_swapout+0x6c2/0x8d0 mm/memcontrol-v1.c:642, CPU#0: kswapd0/88
Modules linked in:
CPU: 0 UID: 0 PID: 88 Comm: kswapd0 Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:memcg1_swapout+0x6c2/0x8d0 mm/memcontrol-v1.c:642
Code: ce 7e 0d 00 0f 85 01 fa ff ff 48 89 df 48 c7 c6 20 c4 98 8b e8 8f 4e f8 fe c6 05 3b ce 7e 0d 01 90 0f 0b 90 e9 e2 f9 ff ff 90 <0f> 0b 90 e9 eb fb ff ff 90 0f 0b 90 41 80 3c 2e 00 0f 85 d5 fe ff
RSP: 0018:ffffc900025cec18 EFLAGS: 00010002
RAX: 0000000000000004 RBX: ffffea0002645640 RCX: ffff8880462c8150
RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffffc90003ff161c
RBP: dffffc0000000000 R08: ffffc90003ff161f R09: 1ffff920007fe2c3
R10: dffffc0000000000 R11: fffff520007fe2c4 R12: ffffea0002645648
R13: 1ffffd40004c8ac8 R14: 1ffffd40004c8ac9 R15: ffff888038b98538
FS:  0000000000000000(0000) GS:ffff8881259ad000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000558747cd2930 CR3: 000000005e83a000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 __remove_mapping+0xac5/0xe30 mm/vmscan.c:764
 shrink_folio_list+0x28d8/0x5320 mm/vmscan.c:1542
 evict_folios+0x473e/0x57f0 mm/vmscan.c:4748
 try_to_shrink_lruvec+0x8be/0xb60 mm/vmscan.c:4911
 shrink_one+0x25c/0x720 mm/vmscan.c:4956
 shrink_many mm/vmscan.c:5019 [inline]
 lru_gen_shrink_node mm/vmscan.c:5097 [inline]
 shrink_node+0x31da/0x39c0 mm/vmscan.c:6077
 kswapd_shrink_node mm/vmscan.c:6924 [inline]
 balance_pgdat mm/vmscan.c:7100 [inline]
 kswapd+0x13d0/0x27e0 mm/vmscan.c:7370
 kthread+0x389/0x480 kernel/kthread.c:467
 ret_from_fork+0x510/0xa50 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246
 </TASK>