reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1248 [inline]
 __free_frozen_pages+0xc71/0xe70 mm/page_alloc.c:2706
 tlb_batch_list_free mm/mmu_gather.c:159 [inline]
 tlb_finish_mmu+0x112/0x1d0 mm/mmu_gather.c:500
 exit_mmap+0x44c/0xb50 mm/mmap.c:1297
 __mmput+0x118/0x420 kernel/fork.c:1121
 exit_mm+0x1da/0x2c0 kernel/exit.c:581
 do_exit+0x640/0x22e0 kernel/exit.c:943
 do_group_exit+0x21c/0x2d0 kernel/exit.c:1104
 get_signal+0x1286/0x1340 kernel/signal.c:3034
 arch_do_signal_or_restart+0x9a/0x750 arch/x86/kernel/signal.c:337
 exit_to_user_mode_loop+0x75/0x110 kernel/entry/common.c:111
 exit_to_user_mode_prepare include/linux/entry-common.h:330 [inline]
 syscall_exit_to_user_mode_work include/linux/entry-common.h:414 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:449 [inline]
 do_syscall_64+0x2bd/0x3b0 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
------------[ cut here ]------------
kernel BUG at mm/filemap.c:1498!
Oops: invalid opcode: 0000 [#1] SMP KASAN PTI
CPU: 1 UID: 0 PID: 16843 Comm: kworker/u8:33 Not tainted 6.15.0-next-20250529-syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Workqueue: writeback wb_workfn (flush-7:1)
RIP: 0010:folio_unlock+0x13d/0x160 mm/filemap.c:1498
Code: d3 c8 ff 48 89 df 48 c7 c6 60 36 94 8b e8 3b 78 10 00 90 0f 0b e8 33 d3 c8 ff 48 89 df 48 c7 c6 80 2c 94 8b e8 24 78 10 00 90 <0f> 0b e8 1c d3 c8 ff 48 89 df 48 c7 c6 60 36 94 8b e8 0d 78 10 00
RSP: 0018:ffffc900033f6e28 EFLAGS: 00010246
RAX: 2a788e54b27fcc00 RBX: ffffea0001696800 RCX: 0000000000000000
RDX: 0000000000000006 RSI: ffffffff8d982956 RDI: 00000000ffffffff
RBP: ffffc900033f7110 R08: ffffffff8fa137f7 R09: 1ffffffff1f426fe
R10: dffffc0000000000 R11: fffffbfff1f426ff R12: 1ffffd40002d2d01
R13: 00fff2800000403c R14: ffffea0001696808 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff888125d52000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b3081eff8 CR3: 0000000028ade000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 f2fs_sync_node_pages+0x180a/0x1a10 fs/f2fs/node.c:2081
 f2fs_write_node_pages+0x303/0x6e0 fs/f2fs/node.c:2183
 do_writepages+0x32e/0x550 mm/page-writeback.c:2636
 __writeback_single_inode+0x145/0xff0 fs/fs-writeback.c:1680
 writeback_sb_inodes+0x6b5/0x1000 fs/fs-writeback.c:1976
 wb_writeback+0x43b/0xaf0 fs/fs-writeback.c:2156
 wb_do_writeback fs/fs-writeback.c:2303 [inline]
 wb_workfn+0x409/0xef0 fs/fs-writeback.c:2343
 process_one_work kernel/workqueue.c:3238 [inline]
 process_scheduled_works+0xade/0x17b0 kernel/workqueue.c:3321
 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3402
 kthread+0x711/0x8a0 kernel/kthread.c:464
 ret_from_fork+0x3fc/0x770 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:folio_unlock+0x13d/0x160 mm/filemap.c:1498
Code: d3 c8 ff 48 89 df 48 c7 c6 60 36 94 8b e8 3b 78 10 00 90 0f 0b e8 33 d3 c8 ff 48 89 df 48 c7 c6 80 2c 94 8b e8 24 78 10 00 90 <0f> 0b e8 1c d3 c8 ff 48 89 df 48 c7 c6 60 36 94 8b e8 0d 78 10 00
RSP: 0018:ffffc900033f6e28 EFLAGS: 00010246
RAX: 2a788e54b27fcc00 RBX: ffffea0001696800 RCX: 0000000000000000
RDX: 0000000000000006 RSI: ffffffff8d982956 RDI: 00000000ffffffff
RBP: ffffc900033f7110 R08: ffffffff8fa137f7 R09: 1ffffffff1f426fe
R10: dffffc0000000000 R11: fffffbfff1f426ff R12: 1ffffd40002d2d01
R13: 00fff2800000403c R14: ffffea0001696808 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff888125d52000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b3081dff8 CR3: 0000000028ade000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400