loop4: detected capacity change from 0 to 64
------------[ cut here ]------------
WARNING: CPU: 1 PID: 22262 at fs/buffer.c:1130 mark_buffer_dirty+0x2dd/0x500
Modules linked in:
CPU: 1 PID: 22262 Comm: syz-executor.4 Not tainted 6.4.0-rc3-syzkaller-00017-g9d646009f65d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/16/2023
RIP: 0010:mark_buffer_dirty+0x2dd/0x500 fs/buffer.c:1130
Code: df e8 77 17 e0 ff 48 8b 3b be 04 00 00 00 5b 41 5c 41 5e 41 5f 5d e9 22 69 fc ff e8 3d 43 88 ff e9 71 ff ff ff e8 33 43 88 ff <0f> 0b e9 6d fd ff ff e8 27 43 88 ff 0f 0b e9 96 fd ff ff e8 1b 43
RSP: 0018:ffffc90014f3f6e8 EFLAGS: 00010287
RAX: ffffffff8203396d RBX: ffff888079332201 RCX: 0000000000040000
RDX: ffffc9000c4e1000 RSI: 000000000000597c RDI: 000000000000597d
RBP: 0000000000000000 R08: ffffffff820336d4 R09: ffffed100789db7a
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88803c4edbc8
R13: ffff88803c4ed0e8 R14: ffff88803c4edbc8 R15: dffffc0000000000
FS:  00007fd7cb16f700(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 000000002b352000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 bfs_move_block fs/bfs/file.c:43 [inline]
 bfs_move_blocks fs/bfs/file.c:56 [inline]
 bfs_get_block+0x856/0xad0 fs/bfs/file.c:125
 __block_write_begin_int+0x548/0x1a50 fs/buffer.c:2064
 __block_write_begin fs/buffer.c:2114 [inline]
 block_write_begin+0x9c/0x1f0 fs/buffer.c:2175
 bfs_write_begin+0x35/0xd0 fs/bfs/file.c:177
 generic_perform_write+0x300/0x5e0 mm/filemap.c:3923
 __generic_file_write_iter+0x17a/0x400 mm/filemap.c:4051
 generic_file_write_iter+0xaf/0x310 mm/filemap.c:4083
 do_iter_write+0x7b1/0xcb0 fs/read_write.c:860
 vfs_writev fs/read_write.c:933 [inline]
 do_pwritev+0x21a/0x360 fs/read_write.c:1030
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fd7ca48c169
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fd7cb16f168 EFLAGS: 00000246 ORIG_RAX: 0000000000000148
RAX: ffffffffffffffda RBX: 00007fd7ca5abf80 RCX: 00007fd7ca48c169
RDX: 0000000000000005 RSI: 0000000020000480 RDI: 0000000000000004
RBP: 00007fd7ca4e7ca1 R08: 0000000000000000 R09: 0000000000000010
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd8c2b1c9f R14: 00007fd7cb16f300 R15: 0000000000022000
 </TASK>