WARNING: CPU: 2 PID: 13822 at fs/buffer.c:1188 mark_buffer_dirty+0x376/0x3e0 fs/buffer.c:1188
Modules linked in:
CPU: 2 PID: 13822 Comm: syz-executor.1 Not tainted 6.6.0-rc5-syzkaller #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:mark_buffer_dirty+0x376/0x3e0 fs/buffer.c:1188
Code: e9 9f e7 89 ff e8 9a e7 89 ff 48 89 ef e8 42 87 e7 ff 5b 5d e9 8b e7 89 ff e8 86 e7 89 ff 0f 0b e9 10 fe ff ff e8 7a e7 89 ff <0f> 0b e9 b7 fc ff ff e8 6e e7 89 ff 0f 0b e9 d6 fc ff ff 48 89 df
RSP: 0018:ffffc9000701f020 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffff88802770b740 RCX: 0000000000000000
RDX: ffff8880269cc800 RSI: ffffffff81fddf36 RDI: 0000000000000001
RBP: ffff88802770bd00 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: dffffc0000000000 R12: 0000000000000009
R13: ffff888025590000 R14: dffffc0000000000 R15: ffffed1004ab202c
FS:  0000000000000000(0000) GS:ffff88802c800000(0063) knlGS:00000000f7fcdb40
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 00000000fff41ed4 CR3: 0000000021953000 CR4: 0000000000350ee0
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+0x37f/0xdd0 fs/bfs/file.c:125
 __block_write_begin_int+0x3c0/0x1560 fs/buffer.c:2120
 __block_write_begin fs/buffer.c:2169 [inline]
 block_write_begin+0xb1/0x490 fs/buffer.c:2228
 bfs_write_begin+0x31/0xd0 fs/bfs/file.c:177
 generic_perform_write+0x278/0x600 mm/filemap.c:3969
 __generic_file_write_iter+0x1f9/0x240 mm/filemap.c:4064
 generic_file_write_iter+0xe3/0x350 mm/filemap.c:4090
 __kernel_write_iter+0x261/0x7e0 fs/read_write.c:517
 dump_emit_page fs/coredump.c:888 [inline]
 dump_user_range+0x299/0x790 fs/coredump.c:915
 elf_core_dump+0x2b0f/0x3eb0 fs/binfmt_elf.c:2142
 do_coredump+0x2c96/0x3fc0 fs/coredump.c:764
 get_signal+0x2434/0x2790 kernel/signal.c:2878
 arch_do_signal_or_restart+0x90/0x7f0 arch/x86/kernel/signal.c:309
 exit_to_user_mode_loop kernel/entry/common.c:168 [inline]
 exit_to_user_mode_prepare+0x11f/0x240 kernel/entry/common.c:204
 __syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline]
 syscall_exit_to_user_mode+0x1d/0x60 kernel/entry/common.c:296
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304
 </TASK>