tipc: Node identity ac14141b, cluster identity 4711
tipc: New replicast peer: 255.255.255.255
tipc: Enabled bearer <udp:syz2>, priority 10
------------[ cut here ]------------
WARNING: fs/buffer.c:1184 at mark_buffer_dirty+0x299/0x400 fs/buffer.c:1184, CPU#0: syz.6.1314/12234
Modules linked in:
CPU: 0 UID: 0 PID: 12234 Comm: syz.6.1314 Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:mark_buffer_dirty+0x299/0x400 fs/buffer.c:1184
Code: 4c 89 f7 e8 f9 44 db ff 49 8b 3e be 40 00 00 00 5b 41 5c 41 5e 41 5f 5d e9 14 af fb ff e8 af 6f 74 ff eb 8c e8 a8 6f 74 ff 90 <0f> 0b 90 e9 a5 fd ff ff e8 9a 6f 74 ff 90 0f 0b 90 e9 cf fd ff ff
RSP: 0018:ffffc900035f7468 EFLAGS: 00010283
RAX: ffffffff824ca9f8 RBX: ffff888056270e80 RCX: 0000000000080000
RDX: ffffc9000e62a000 RSI: 00000000000008d2 RDI: 00000000000008d3
RBP: ffff88807c48a001 R08: ffff888056270e87 R09: 1ffff1100ac4e1d0
R10: dffffc0000000000 R11: ffffed100ac4e1d1 R12: ffff888073e9f600
R13: ffff88803ec95658 R14: ffff888056270e80 R15: 000000000000000a
FS:  00007f77c4d0e6c0(0000) GS:ffff888125bf9000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fdceca51768 CR3: 000000004c98a000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 bfs_move_block fs/bfs/file.c:44 [inline]
 bfs_move_blocks fs/bfs/file.c:57 [inline]
 bfs_get_block+0x5da/0xae0 fs/bfs/file.c:126
 __block_write_begin_int+0x6b5/0x1900 fs/buffer.c:2146
 block_write_begin+0x8d/0x120 fs/buffer.c:2257
 bfs_write_begin+0x35/0xd0 fs/bfs/file.c:180
 generic_perform_write+0x2c5/0x900 mm/filemap.c:4314
 generic_file_write_iter+0x117/0x550 mm/filemap.c:4457
 do_iter_readv_writev+0x623/0x8c0 fs/read_write.c:-1
 vfs_writev+0x31a/0x960 fs/read_write.c:1059
 do_pwritev fs/read_write.c:1155 [inline]
 __do_sys_pwritev2 fs/read_write.c:1213 [inline]
 __se_sys_pwritev2+0x179/0x290 fs/read_write.c:1204
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xec/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f77c3d8f749
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f77c4d0e038 EFLAGS: 00000246 ORIG_RAX: 0000000000000148
RAX: ffffffffffffffda RBX: 00007f77c3fe5fa0 RCX: 00007f77c3d8f749
RDX: 0000000000000001 RSI: 00002000000001c0 RDI: 0000000000000009
RBP: 00007f77c3e13f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000e7b R11: 0000000000000246 R12: 0000000000000000
R13: 00007f77c3fe6038 R14: 00007f77c3fe5fa0 R15: 00007fffd8aed0d8
 </TASK>