------------[ cut here ]------------
WARNING: CPU: 0 PID: 9896 at fs/buffer.c:1084 mark_buffer_dirty+0x325/0x4b0
Modules linked in:
CPU: 0 PID: 9896 Comm: syz-executor.3 Not tainted 5.15.159-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
RIP: 0010:mark_buffer_dirty+0x325/0x4b0 fs/buffer.c:1084
Code: 89 df e8 ce 93 e4 ff 48 8b 3b be 04 00 00 00 5b 41 5c 41 5d 41 5e 41 5f 5d e9 07 80 fc ff e8 a2 c5 9a ff eb 80 e8 9b c5 9a ff <0f> 0b e9 27 fd ff ff e8 8f c5 9a ff 0f 0b e9 46 fd ff ff e8 83 c5
RSP: 0018:ffffc90002fa77a0 EFLAGS: 00010283
RAX: ffffffff81e59725 RBX: ffff88805d954200 RCX: 0000000000040000
RDX: ffffc900038b9000 RSI: 00000000000093f0 RDI: 00000000000093f1
RBP: 0000000000000000 R08: ffffffff81e59444 R09: ffffed100caaf500
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88805a4461d0
R13: dffffc0000000000 R14: 1ffff1100b488c3a R15: dffffc0000000000
FS:  00007faa323266c0(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 0000000058b80000 CR4: 00000000003506e0
Call Trace:
 <TASK>
 bfs_move_block fs/bfs/file.c:43 [inline]
 bfs_move_blocks fs/bfs/file.c:56 [inline]
 bfs_get_block+0x852/0xac0 fs/bfs/file.c:125
 __block_write_begin_int+0x60b/0x1650 fs/buffer.c:2012
 __block_write_begin fs/buffer.c:2062 [inline]
 block_write_begin+0x4f/0xc0 fs/buffer.c:2122
 bfs_write_begin+0x38/0xd0 fs/bfs/file.c:177
 generic_perform_write+0x2bf/0x5b0 mm/filemap.c:3785
 __generic_file_write_iter+0x243/0x4f0 mm/filemap.c:3912
 generic_file_write_iter+0xa7/0x1b0 mm/filemap.c:3944
 call_write_iter include/linux/fs.h:2172 [inline]
 new_sync_write fs/read_write.c:507 [inline]
 vfs_write+0xacf/0xe50 fs/read_write.c:594