loop0: detected capacity change from 0 to 64
------------[ cut here ]------------
WARNING: CPU: 1 PID: 5055 at fs/buffer.c:1176 mark_buffer_dirty+0x37b/0x3f0 fs/buffer.c:1176
Modules linked in:
CPU: 1 PID: 5055 Comm: syz-executor162 Not tainted 6.8.0-rc1-syzkaller-00049-g6098d87eaf31 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
RIP: 0010:mark_buffer_dirty+0x37b/0x3f0 fs/buffer.c:1176
Code: 86 ff e8 58 e9 86 ff 48 89 ef e8 00 a1 e6 ff 5b 5d e9 49 e9 86 ff e8 44 e9 86 ff 90 0f 0b 90 e9 0c fe ff ff e8 36 e9 86 ff 90 <0f> 0b 90 e9 b1 fc ff ff e8 28 e9 86 ff 90 0f 0b 90 e9 ce fc ff ff
RSP: 0018:ffffc900040df920 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffff8880782647c0 RCX: ffffffff820135db
RDX: ffff888021a21dc0 RSI: ffffffff8201392a RDI: 0000000000000001
RBP: ffff888078264100 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000009
R13: dffffc0000000000 R14: ffff888021960000 R15: ffffed100432c02c
FS:  00007f3e6c75a6c0(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f3e6c7d9ad0 CR3: 000000001d6e2000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 bfs_move_block fs/bfs/file.c:44 [inline]
 bfs_move_blocks fs/bfs/file.c:57 [inline]
 bfs_get_block+0x3e5/0xeb0 fs/bfs/file.c:126
 __block_write_begin_int+0x4fb/0x16e0 fs/buffer.c:2103
 __block_write_begin fs/buffer.c:2152 [inline]
 block_write_begin+0xb1/0x490 fs/buffer.c:2211
 bfs_write_begin+0x31/0xd0 fs/bfs/file.c:179
 generic_perform_write+0x278/0x600 mm/filemap.c:3930
 __generic_file_write_iter+0x1f9/0x240 mm/filemap.c:4025
 generic_file_write_iter+0xe3/0x350 mm/filemap.c:4051
 call_write_iter include/linux/fs.h:2085 [inline]
 new_sync_write fs/read_write.c:497 [inline]
 vfs_write+0x6d5/0x1100 fs/read_write.c:590
 ksys_write+0x12f/0x250 fs/read_write.c:643
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xd3/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7f3e6c79dbd9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 18 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:00007f3e6c75a218 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f3e6c8256c8 RCX: 00007f3e6c79dbd9
RDX: 000000000208e24b RSI: 0000000020000440 RDI: 0000000000000004
RBP: 00007f3e6c8256c0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f3e6c7f20c0
R13: 00007f3e6c7f206b R14: 0030656c69662f2e R15: 0031656c69662f2e
 </TASK>