------------[ cut here ]------------
WARNING: CPU: 1 PID: 7032 at fs/buffer.c:1188 mark_buffer_dirty+0x2dd/0x500
Modules linked in:
CPU: 1 PID: 7032 Comm: syz-executor.0 Not tainted 6.6.0-rc4-syzkaller-00012-gce36c8b14987 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023
RIP: 0010:mark_buffer_dirty+0x2dd/0x500 fs/buffer.c:1188
Code: df e8 97 6b df ff 48 8b 3b be 04 00 00 00 5b 41 5c 41 5e 41 5f 5d e9 92 50 fc ff e8 6d ef 84 ff e9 71 ff ff ff e8 63 ef 84 ff <0f> 0b e9 6d fd ff ff e8 57 ef 84 ff 0f 0b e9 96 fd ff ff e8 4b ef
RSP: 0018:ffffc900158c6c08 EFLAGS: 00010293
RAX: ffffffff82091c4d RBX: ffff888025b67001 RCX: ffff88808584d940
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffffffff820919b4 R09: 1ffff11010bd3e00
R10: dffffc0000000000 R11: ffffed1010bd3e01 R12: ffff888085e9f000
R13: ffff888085e9f570 R14: ffff888085e9f000 R15: dffffc0000000000
FS:  00007fdd30e786c0(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fdd30198000 CR3: 0000000018ba9000 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+0x54d/0x1ac0 fs/buffer.c:2120
 __block_write_begin fs/buffer.c:2169 [inline]
 block_write_begin+0x9b/0x1e0 fs/buffer.c:2228
 bfs_write_begin+0x35/0xd0 fs/bfs/file.c:177
 generic_perform_write+0x31b/0x630 mm/filemap.c:3969
 generic_file_write_iter+0xaf/0x310 mm/filemap.c:4090
 __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
 writenote+0x221/0x3b0 fs/binfmt_elf.c:1487
 write_note_info fs/binfmt_elf.c:1977 [inline]
 elf_core_dump+0x3a50/0x4540 fs/binfmt_elf.c:2129
 do_coredump+0x1b73/0x2ab0 fs/coredump.c:764
 get_signal+0x145e/0x1840 kernel/signal.c:2878
 arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:309
 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:309
 exc_page_fault+0x57c/0x860 arch/x86/mm/fault.c:1564
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:570
RIP: 0033:0x85
Code: Unable to access opcode bytes at 0x5b.
RSP: 002b:0000000020000518 EFLAGS: 00010217
RAX: 0000000000000000 RBX: 00007fdd3019bf80 RCX: 00007fdd3007cae9
RDX: 0000000020000100 RSI: 0000000020000510 RDI: 0000000000100000
RBP: 00007fdd300c847a R08: 0000000020000340 R09: 0000000020000340
R10: 00000000200001c0 R11: 0000000000000206 R12: 0000000000000000
R13: 000000000000000b R14: 00007fdd3019bf80 R15: 00007ffee4f9fdf8
 </TASK>