------------[ cut here ]------------
WARNING: CPU: 1 PID: 12407 at fs/buffer.c:1176 mark_buffer_dirty+0x2e5/0x520 fs/buffer.c:1176
Modules linked in:
CPU: 1 PID: 12407 Comm: syz-executor.1 Not tainted 6.9.0-rc5-syzkaller-00296-g5eb4573ea63d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
RIP: 0010:mark_buffer_dirty+0x2e5/0x520 fs/buffer.c:1176
Code: 89 df e8 9e 57 dd ff 48 8b 3b be 04 00 00 00 5b 41 5e 41 5f 5d e9 7b 0b fc ff e8 96 07 7c ff e9 73 ff ff ff e8 8c 07 7c ff 90 <0f> 0b 90 e9 61 fd ff ff e8 7e 07 7c ff 90 0f 0b 90 e9 88 fd ff ff
RSP: 0018:ffffc900099a77e0 EFLAGS: 00010283
RAX: ffffffff8219f8e4 RBX: dffffc0000000001 RCX: 0000000000040000
RDX: ffffc90012af8000 RSI: 0000000000000b19 RDI: 0000000000000b1a
RBP: 0000000000000000 R08: ffffffff8219f641 R09: 1ffff1100c7598cb
R10: dffffc0000000000 R11: ffffed100c7598cc R12: ffff8880620cd740
R13: ffff888063acc658 R14: ffff888063acc658 R15: ffff888061390200
FS:  00007f6f63ac06c0(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020001000 CR3: 000000006e986000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 bfs_move_block fs/bfs/file.c:44 [inline]
 bfs_move_blocks fs/bfs/file.c:57 [inline]
 bfs_get_block+0x8f8/0xb90 fs/bfs/file.c:126
 __block_write_begin_int+0x50c/0x1a70 fs/buffer.c:2105
 __block_write_begin fs/buffer.c:2154 [inline]
 block_write_begin+0x9b/0x1e0 fs/buffer.c:2213
 bfs_write_begin+0x35/0xd0 fs/bfs/file.c:179
 generic_perform_write+0x322/0x640 mm/filemap.c:3974
 generic_file_write_iter+0xaf/0x310 mm/filemap.c:4095
 call_write_iter include/linux/fs.h:2110 [inline]
 new_sync_write fs/read_write.c:497 [inline]
 vfs_write+0xa84/0xcb0 fs/read_write.c:590
 ksys_write+0x1a0/0x2c0 fs/read_write.c:643
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f6f62c7dea9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f6f63ac00c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f6f62dabf80 RCX: 00007f6f62c7dea9
RDX: 0000000000001006 RSI: 0000000020000940 RDI: 0000000000000004
RBP: 00007f6f62cca4a4 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f6f62dabf80 R15: 00007ffc5abac978
 </TASK>