raw: 05ffc00000004018 fffffdffc37c5908 fffffdffc3ef5a88 ffff0000f66fc0b0
raw: 000000000000000b 0000000000000009 00000004ffffffff ffff0000dae13200
page dumped because: VM_BUG_ON_FOLIO(!folio_test_locked(folio))
------------[ cut here ]------------
kernel BUG at mm/filemap.c:1498!
Internal error: Oops - BUG: 00000000f2000800 [#1]  SMP
Modules linked in:
CPU: 0 UID: 0 PID: 321 Comm: kworker/u8:7 Not tainted 6.16.0-rc2-syzkaller-g9aa9b43d689e #0 PREEMPT 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Workqueue: writeback wb_workfn (flush-7:4)
pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : folio_unlock+0xfc/0x120 mm/filemap.c:1498
lr : folio_unlock+0xfc/0x120 mm/filemap.c:1498
sp : ffff80009c296df0
x29: ffff80009c296df0 x28: 0000000000000003 x27: ffff80009c297480
x26: ffff0000d7e8115c x25: ffff80009c296f28 x24: 00003e0040000000
x23: fffffdffc36103c0 x22: dfff800000000000 x21: dfff800000000000
x20: 05ffc00000004018 x19: fffffdffc36103c0 x18: 1fffe000337dc876
x17: ffff80008f62e000 x16: ffff80008aecb65c x15: 0000000000000001
x14: 1fffe000337df620 x13: 0000000000000000 x12: 0000000000000000
x11: ffff80009311fc08 x10: 0000000000ff0100 x9 : 116c7d48e4642d00
x8 : 116c7d48e4642d00 x7 : ffff800080487a94 x6 : 0000000000000000
x5 : 0000000000000001 x4 : 0000000000000001 x3 : 0000000000000010
x2 : 0000000000000006 x1 : 0000000100000000 x0 : 000000000000003f
Call trace:
 folio_unlock+0xfc/0x120 mm/filemap.c:1498 (P)
 f2fs_sync_node_pages+0x16bc/0x18d8 fs/f2fs/node.c:2081
 f2fs_write_node_pages+0x278/0x614 fs/f2fs/node.c:2183
 do_writepages+0x270/0x468 mm/page-writeback.c:2636
 __writeback_single_inode+0x15c/0x13e8 fs/fs-writeback.c:1680
 writeback_sb_inodes+0x558/0xe38 fs/fs-writeback.c:1976
 wb_writeback+0x3cc/0xd70 fs/fs-writeback.c:2156
 wb_do_writeback fs/fs-writeback.c:2303 [inline]
 wb_workfn+0x338/0xdc0 fs/fs-writeback.c:2343
 process_one_work+0x7e8/0x155c kernel/workqueue.c:3238
 process_scheduled_works kernel/workqueue.c:3321 [inline]
 worker_thread+0x958/0xed8 kernel/workqueue.c:3402
 kthread+0x5fc/0x75c kernel/kthread.c:464
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:847
Code: b0053141 91050021 aa1303e0 94032ff0 (d4210000) 
---[ end trace 0000000000000000 ]---