------------[ cut here ]------------
WARNING: CPU: 0 PID: 5421 at fs/buffer.c:1130 mark_buffer_dirty+0x2d9/0x4f0
Modules linked in:
CPU: 0 PID: 5421 Comm: syz-executor.0 Not tainted 6.3.0-syzkaller-13294-g418d5c98319f #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023
RIP: 0010:mark_buffer_dirty+0x2d9/0x4f0 fs/buffer.c:1130
Code: df e8 fb 6c e0 ff 48 8b 3b be 04 00 00 00 5b 41 5c 41 5e 41 5f 5d e9 c6 71 fc ff e8 61 44 86 ff e9 71 ff ff ff e8 57 44 86 ff <0f> 0b e9 6d fd ff ff e8 4b 44 86 ff 0f 0b e9 96 fd ff ff e8 3f 44
RSP: 0018:ffffc900056aebc8 EFLAGS: 00010293
RAX: ffffffff820458d9 RBX: ffff888022d9b201 RCX: ffff888070269dc0
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffffffff82045640 R09: ffffed100e75ab5d
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff888073ad5ae0
R13: ffff888073ad52b8 R14: ffff888073ad5ae0 R15: dffffc0000000000
FS:  00007f8ab0682700(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fb1b34b0378 CR3: 000000006fda9000 CR4: 00000000003506f0
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+0x852/0xac0 fs/bfs/file.c:125
 __block_write_begin_int+0x544/0x1a30 fs/buffer.c:2064
 __block_write_begin fs/buffer.c:2114 [inline]
 block_write_begin+0x98/0x1f0 fs/buffer.c:2175
 bfs_write_begin+0x31/0xd0 fs/bfs/file.c:177
 generic_perform_write+0x2fc/0x5e0 mm/filemap.c:3923
 __generic_file_write_iter+0x176/0x400 mm/filemap.c:4051
 generic_file_write_iter+0xab/0x310 mm/filemap.c:4083
 __kernel_write_iter+0x2ff/0x710 fs/read_write.c:517
 __kernel_write+0x11c/0x170 fs/read_write.c:537
 __dump_emit+0x232/0x350 fs/coredump.c:811
 writenote+0x21d/0x3b0 fs/binfmt_elf.c:1487
 write_note_info fs/binfmt_elf.c:1969 [inline]
 elf_core_dump+0x3849/0x4470 fs/binfmt_elf.c:2129
 do_coredump+0x190f/0x28b0 fs/coredump.c:762
 get_signal+0x1466/0x17e0 kernel/signal.c:2860
 arch_do_signal_or_restart+0x8d/0x610 arch/x86/kernel/signal.c:306
 exit_to_user_mode_loop+0x6a/0x100 kernel/entry/common.c:168
 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:204
 irqentry_exit_to_user_mode+0x5/0x30 kernel/entry/common.c:310
 exc_page_fault+0x6de/0x8c0 arch/x86/mm/fault.c:1593
 asm_exc_page_fault+0x22/0x30 arch/x86/include/asm/idtentry.h:570
RIP: 0033:0x0
Code: Unable to access opcode bytes at 0xffffffffffffffd6.
RSP: 002b:0000000020000008 EFLAGS: 00010217
RAX: 0000000000000000 RBX: 00007f8aaf9abf80 RCX: 00007f8aaf88c0f9
RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000000
RBP: 00007f8aaf8e7b39 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc08c560cf R14: 00007f8ab0682300 R15: 0000000000022000
 </TASK>