------------[ cut here ]------------
kernel BUG at fs/ocfs2/aops.c:1180!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 9637 Comm: syz.3.721 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:ocfs2_write_cluster fs/ocfs2/aops.c:1180 [inline]
RIP: 0010:ocfs2_write_cluster_by_desc+0x1c75/0x1ca0 fs/ocfs2/aops.c:1241
Code: 4c 8b 03 48 8d bc 24 10 02 00 00 48 c7 c6 7e 53 62 8c ba 7f 04 00 00 48 c7 c1 00 90 e9 8a e8 92 3b 1a 00 0f 0b e8 2b 20 39 fe <0f> 0b e8 24 20 39 fe 0f 0b e8 1d 20 39 fe 0f 0b e8 16 20 39 fe 0f
RSP: 0018:ffffc9000519e520 EFLAGS: 00010293
RAX: ffffffff834c7095 RBX: ffff88802b6be014 RCX: ffff888019f40000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc9000519e850 R08: ffff8880700fce63 R09: 1ffff1100e01f9cc
R10: dffffc0000000000 R11: ffffed100e01f9cd R12: ffff88807a3e0000
R13: dffffc0000000000 R14: 0000000000000000 R15: ffff88802b6be014
FS:  00007f36a59b46c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555561061608 CR3: 000000005ed86000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 ocfs2_write_begin_nolock+0x2fcb/0x4190 fs/ocfs2/aops.c:1817
 ocfs2_write_begin+0x1bc/0x310 fs/ocfs2/aops.c:1904
 generic_perform_write+0x2fb/0x5b0 mm/filemap.c:4031
 ocfs2_file_write_iter+0x1582/0x1d00 fs/ocfs2/file.c:2468
 __kernel_write_iter+0x274/0x670 fs/read_write.c:517
 dump_emit_page fs/coredump.c:957 [inline]
 dump_user_range+0x3f6/0x800 fs/coredump.c:984
 elf_core_dump+0x3114/0x36e0 fs/binfmt_elf.c:2184
 do_coredump+0x1755/0x2480 fs/coredump.c:833
 get_signal+0x1133/0x1400 kernel/signal.c:2888
 arch_do_signal_or_restart+0x9c/0x7b0 arch/x86/kernel/signal.c:310
 exit_to_user_mode_loop+0x70/0x110 kernel/entry/common.c:174
 exit_to_user_mode_prepare+0xf6/0x180 kernel/entry/common.c:210
 irqentry_exit_to_user_mode+0x9/0x40 kernel/entry/common.c:315
 exc_page_fault+0x8f/0x110 arch/x86/mm/fault.c:1524
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:608
RIP: 0033:0x7f36a4b8f751
Code: 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 48 3d 01 f0 ff ff 73 01 <c3> 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f
RSP: 002b:0000000000000030 EFLAGS: 00010217
RAX: 0000000000000000 RBX: 00007f36a4de6090 RCX: 00007f36a4b8f749
RDX: 0000000000000000 RSI: 0000000000000030 RDI: 0000000000000600
RBP: 00007f36a4c13f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000
R13: 00007f36a4de6128 R14: 00007f36a4de6090 R15: 00007ffc35515dd8
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:ocfs2_write_cluster fs/ocfs2/aops.c:1180 [inline]
RIP: 0010:ocfs2_write_cluster_by_desc+0x1c75/0x1ca0 fs/ocfs2/aops.c:1241
Code: 4c 8b 03 48 8d bc 24 10 02 00 00 48 c7 c6 7e 53 62 8c ba 7f 04 00 00 48 c7 c1 00 90 e9 8a e8 92 3b 1a 00 0f 0b e8 2b 20 39 fe <0f> 0b e8 24 20 39 fe 0f 0b e8 1d 20 39 fe 0f 0b e8 16 20 39 fe 0f
RSP: 0018:ffffc9000519e520 EFLAGS: 00010293
RAX: ffffffff834c7095 RBX: ffff88802b6be014 RCX: ffff888019f40000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc9000519e850 R08: ffff8880700fce63 R09: 1ffff1100e01f9cc
R10: dffffc0000000000 R11: ffffed100e01f9cd R12: ffff88807a3e0000
R13: dffffc0000000000 R14: 0000000000000000 R15: ffff88802b6be014
FS:  00007f36a59b46c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555561061608 CR3: 000000005ed86000 CR4: 00000000003526f0