loop0: detected capacity change from 0 to 64
------------[ cut here ]------------
WARNING: CPU: 0 PID: 15807 at fs/buffer.c:1183 mark_buffer_dirty+0x2e5/0x520 fs/buffer.c:1183
Modules linked in:
CPU: 0 PID: 15807 Comm: syz-executor Not tainted 6.9.0-next-20240520-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
RIP: 0010:mark_buffer_dirty+0x2e5/0x520 fs/buffer.c:1183
Code: 89 df e8 3e 84 dd ff 48 8b 3b be 04 00 00 00 5b 41 5e 41 5f 5d e9 fb 08 fc ff e8 c6 9f 77 ff e9 73 ff ff ff e8 bc 9f 77 ff 90 <0f> 0b 90 e9 61 fd ff ff e8 ae 9f 77 ff 90 0f 0b 90 e9 88 fd ff ff
RSP: 0018:ffffc90004f27808 EFLAGS: 00010293
RAX: ffffffff821ec414 RBX: ffff88807d7d5301 RCX: ffff88801c325a00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffffffff821ec171 R09: 1ffff1100fab4579
R10: dffffc0000000000 R11: ffffed100fab457a R12: dffffc0000000000
R13: ffff88807d5a2bc8 R14: ffff88807d5a2bc8 R15: ffff8880679a3200
FS:  00007f7754bb16c0(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020004000 CR3: 000000001eb66000 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+0xadd/0xb70 fs/bfs/file.c:126
 __block_write_begin_int+0x50c/0x1a70 fs/buffer.c:2128
 __block_write_begin fs/buffer.c:2177 [inline]
 block_write_begin+0x9b/0x1e0 fs/buffer.c:2236
 bfs_write_begin+0x35/0xd0 fs/bfs/file.c:179
 generic_perform_write+0x322/0x640 mm/filemap.c:4016
 generic_file_write_iter+0xaf/0x310 mm/filemap.c:4137
 new_sync_write fs/read_write.c:497 [inline]
 vfs_write+0xa72/0xc90 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: 0033:0x7f7753e7cee9
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:00007f7754bb10c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f7753fabf80 RCX: 00007f7753e7cee9
RDX: 000000000208e24b RSI: 0000000020000600 RDI: 0000000000000005
RBP: 00007f7753ec949e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f7753fabf80 R15: 00007ffd16de2ce8
 </TASK>