arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:337
 exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
 syscall_exit_to_user_mode+0xce/0x340 kernel/entry/common.c:218
 do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
------------[ cut here ]------------
WARNING: CPU: 1 PID: 993 at ./include/linux/mm_inline.h:265 lru_gen_add_folio+0xad2/0xc30 include/linux/mm_inline.h:265
Modules linked in:
CPU: 1 UID: 0 PID: 993 Comm: kworker/u8:5 Not tainted 6.13.0-rc1-next-20241205-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Workqueue: writeback wb_workfn (flush-8:0)
RIP: 0010:lru_gen_add_folio+0xad2/0xc30 include/linux/mm_inline.h:265
Code: 44 89 c2 ff ba 01 00 00 00 e9 8b fa ff ff e8 35 89 c2 ff 4c 89 ff 48 c7 c6 c0 c8 13 8c e8 c6 41 0c 00 c6 05 f1 32 27 0e 01 90 <0f> 0b 90 e9 82 f6 ff ff 89 d9 80 e1 07 38 c1 0f 8c 19 f7 ff ff 48
RSP: 0018:ffffc9000400e8a0 EFLAGS: 00010046
RAX: 37f11d4609823700 RBX: ffffea0001dc39c8 RCX: ffffc9000400e403
RDX: 0000000000000007 RSI: ffffffff8c0aa440 RDI: ffffffff8c5fbe80
RBP: ffffc9000400e998 R08: ffffffff9019d9b7 R09: 1ffffffff2033b36
R10: dffffc0000000000 R11: fffffbfff2033b37 R12: 0000000000000000
R13: 1ffffd40003b8738 R14: 0000020000000000 R15: ffffea0001dc39c0
FS:  0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffcac85c94c CR3: 000000007d35a000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 lruvec_add_folio include/linux/mm_inline.h:352 [inline]
 lru_add+0x704/0xdb0 mm/swap.c:154
 folio_batch_move_lru+0x26b/0x420 mm/swap.c:168
 lru_add_drain_cpu+0x118/0x890 mm/swap.c:635
 lru_add_drain+0x123/0x3e0 mm/swap.c:723
 __folio_batch_release+0x55/0xa0 mm/swap.c:1044
 folio_batch_release include/linux/pagevec.h:101 [inline]
 mpage_map_and_submit_buffers fs/ext4/inode.c:2183 [inline]
 mpage_map_and_submit_extent fs/ext4/inode.c:2310 [inline]
 ext4_do_writepages+0x1f3e/0x3df0 fs/ext4/inode.c:2735
 ext4_writepages+0x213/0x3c0 fs/ext4/inode.c:2824
 do_writepages+0x35f/0x880 mm/page-writeback.c:2681
 __writeback_single_inode+0x14f/0x10d0 fs/fs-writeback.c:1680
 writeback_sb_inodes+0x820/0x1360 fs/fs-writeback.c:1976
 __writeback_inodes_wb+0x11b/0x260 fs/fs-writeback.c:2047
 wb_writeback+0x427/0xb80 fs/fs-writeback.c:2158
 wb_check_old_data_flush fs/fs-writeback.c:2262 [inline]
 wb_do_writeback fs/fs-writeback.c:2315 [inline]
 wb_workfn+0xb94/0x1080 fs/fs-writeback.c:2343
 process_one_work kernel/workqueue.c:3229 [inline]
 process_scheduled_works+0xa66/0x1840 kernel/workqueue.c:3310
 worker_thread+0x870/0xd30 kernel/workqueue.c:3391
 kthread+0x2f0/0x390 kernel/kthread.c:389
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>