------------[ cut here ]------------
WARNING: CPU: 0 PID: 5388 at fs/buffer.c:1130 mark_buffer_dirty+0x2dd/0x500
Modules linked in:
CPU: 0 PID: 5388 Comm: syz-executor.0 Not tainted 6.4.0-rc2-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/28/2023
RIP: 0010:mark_buffer_dirty+0x2dd/0x500 fs/buffer.c:1130
Code: df e8 f7 47 e1 ff 48 8b 3b be 04 00 00 00 5b 41 5c 41 5e 41 5f 5d e9 02 6b fc ff e8 bd 99 89 ff e9 71 ff ff ff e8 b3 99 89 ff <0f> 0b e9 6d fd ff ff e8 a7 99 89 ff 0f 0b e9 96 fd ff ff e8 9b 99
RSP: 0018:ffffc90005e0eca8 EFLAGS: 00010293
RAX: ffffffff8200644d RBX: ffff88801f13b401 RCX: ffff888018b10000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffffffff820061b4 R09: ffffed100dfac740
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88806fd639f8
R13: ffff8880752299f8 R14: ffff88806fd639f8 R15: dffffc0000000000
FS:  00007fe2da7ff700(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe2d9babf70 CR3: 000000002a6c1000 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+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
 __kernel_write_iter+0x303/0x710 fs/read_write.c:517
 __kernel_write+0x120/0x170 fs/read_write.c:537
 __dump_emit+0x236/0x360 fs/coredump.c:811
 elf_core_dump+0x335e/0x4480 fs/binfmt_elf.c:2121
 do_coredump+0x19eb/0x2980 fs/coredump.c:762
 get_signal+0x145e/0x17e0 kernel/signal.c:2860
 arch_do_signal_or_restart+0x91/0x600 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+0x9/0x40 kernel/entry/common.c:310
 exc_page_fault+0x70e/0x900 arch/x86/mm/fault.c:1593
 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: 00007fe2d9babf80 RCX: 00007fe2d9a8c0f9
RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000000
RBP: 00007fe2d9ae7b39 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe0f90467f R14: 00007fe2da7ff300 R15: 0000000000022000
 </TASK>