------------[ cut here ]------------
WARNING: fs/buffer.c:1183 at mark_buffer_dirty+0x2a9/0x410 fs/buffer.c:1183, CPU#1: kworker/u8:0/12
Modules linked in:
CPU: 1 UID: 0 PID: 12 Comm: kworker/u8:0 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
Workqueue: writeback wb_workfn (flush-7:1)
RIP: 0010:mark_buffer_dirty+0x2a9/0x410 fs/buffer.c:1183
Code: 4c 89 f7 e8 b9 3d dd ff 49 8b 3e be 40 00 00 00 5b 41 5c 41 5e 41 5f 5d e9 d4 fa fb ff e8 cf 36 79 ff eb 8c e8 c8 36 79 ff 90 <0f> 0b 90 e9 95 fd ff ff e8 ba 36 79 ff 90 0f 0b 90 e9 bf fd ff ff
RSP: 0018:ffffc90000116da8 EFLAGS: 00010293
RAX: ffffffff82468678 RBX: ffff888051d5a910 RCX: ffff88801d2b5ac0
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000002
RBP: ffff88802b47e001 R08: ffff888051d5a917 R09: 1ffff1100a3ab522
R10: dffffc0000000000 R11: ffffed100a3ab523 R12: ffff888011cef600
R13: ffff88802ffc82b8 R14: ffff888051d5a910 R15: 000000000000000a
FS:  0000000000000000(0000) GS:ffff888125af0000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffe19730ff8 CR3: 000000007871e000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 bfs_move_block fs/bfs/file.c:44 [inline]
 bfs_move_blocks fs/bfs/file.c:57 [inline]
 bfs_get_block+0x5da/0xae0 fs/bfs/file.c:126
 __block_write_full_folio+0x30b/0xe10 fs/buffer.c:1885
 mpage_write_folio fs/mpage.c:641 [inline]
 mpage_writepages+0xb87/0x1cc0 fs/mpage.c:670
 do_writepages+0x32b/0x550 mm/page-writeback.c:2604
 __writeback_single_inode+0x145/0xff0 fs/fs-writeback.c:1680
 writeback_sb_inodes+0x6c7/0x1010 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:3263 [inline]
 process_scheduled_works+0xae1/0x17b0 kernel/workqueue.c:3346
 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3427
 kthread+0x711/0x8a0 kernel/kthread.c:463
 ret_from_fork+0x47c/0x820 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>