------------[ cut here ]------------
WARNING: CPU: 1 PID: 5023 at fs/buffer.c:1193 mark_buffer_dirty+0x2dd/0x500
Modules linked in:
CPU: 1 PID: 5023 Comm: syz-executor748 Not tainted 6.5.0-rc7-syzkaller-00185-g28f20a19294d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023
RIP: 0010:mark_buffer_dirty+0x2dd/0x500 fs/buffer.c:1193
Code: df e8 a7 12 e0 ff 48 8b 3b be 04 00 00 00 5b 41 5c 41 5e 41 5f 5d e9 62 5d fc ff e8 cd 31 87 ff e9 71 ff ff ff e8 c3 31 87 ff <0f> 0b e9 6d fd ff ff e8 b7 31 87 ff 0f 0b e9 96 fd ff ff e8 ab 31
RSP: 0018:ffffc90003a4ece8 EFLAGS: 00010293
RAX: ffffffff820486bd RBX: ffff888016be9201 RCX: ffff88807c090000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffffffff82048424 R09: 1ffff1100ec4c35c
R10: dffffc0000000000 R11: ffffed100ec4c35d R12: ffff888076261ae0
R13: ffff888076261570 R14: ffff888076261ae0 R15: dffffc0000000000
FS:  00005555571453c0(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 00000000734ee000 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+0x555/0x1a60 fs/buffer.c:2128
 __block_write_begin fs/buffer.c:2178 [inline]
 block_write_begin+0x9c/0x1f0 fs/buffer.c:2239
 bfs_write_begin+0x35/0xd0 fs/bfs/file.c:177
 generic_perform_write+0x31b/0x630 mm/filemap.c:3923
 generic_file_write_iter+0xaf/0x310 mm/filemap.c:4044
 __kernel_write_iter+0x32a/0x7c0 fs/read_write.c:517
 __kernel_write+0x120/0x170 fs/read_write.c:537
 __dump_emit+0x236/0x360 fs/coredump.c:813
 elf_core_dump+0x336a/0x4490 fs/binfmt_elf.c:2121
 do_coredump+0x1b73/0x2ab0 fs/coredump.c:764
 get_signal+0x145e/0x17e0 kernel/signal.c:2867
 arch_do_signal_or_restart+0x91/0x670 arch/x86/kernel/signal.c:308
 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+0x9/0x40 kernel/entry/common.c:310
 exc_page_fault+0x4e7/0x7c0 arch/x86/mm/fault.c:1545
 asm_exc_page_fault+0x26/0x30 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: 000000000000001a RCX: 00007f9d1491ba39
RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000000
RBP: 00007ffe5806fcd8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe5806fd10
R13: 00007f9d1499d590 R14: 0000000000000000 R15: 00007ffe5806fcf0
 </TASK>