------------[ cut here ]------------
kernel BUG at fs/ocfs2/aops.c:1181!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 5600 Comm: syz.5.263 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
RIP: 0010:ocfs2_write_cluster fs/ocfs2/aops.c:1181 [inline]
RIP: 0010:ocfs2_write_cluster_by_desc+0x1de4/0x1e10 fs/ocfs2/aops.c:1242
Code: 00 00 48 c7 c6 0d 6c c6 8b ba 80 04 00 00 48 c7 c1 80 ba 67 8a e8 1c 32 1a 00 48 8b 44 24 08 c6 40 1e f8 0f 0b e8 3c e0 5e fe <0f> 0b e8 35 e0 5e fe 0f 0b e8 2e e0 5e fe 0f 0b e8 27 e0 5e fe 0f
RSP: 0000:ffffc900037be3c0 EFLAGS: 00010293
RAX: ffffffff831a40d4 RBX: ffff88807b030014 RCX: ffff888025c38000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc900037be6f0 R08: ffff88805f280723 R09: 1ffff1100be500e4
R10: dffffc0000000000 R11: ffffed100be500e5 R12: ffff88807a018000
R13: dffffc0000000000 R14: 0000000000000000 R15: ffff88807b030014
FS:  00007fb2fa15f6c0(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00002000000001c0 CR3: 00000000627be000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 ocfs2_write_begin_nolock+0x344f/0x4400 fs/ocfs2/aops.c:1818
 ocfs2_write_begin+0x1b9/0x310 fs/ocfs2/aops.c:1905
 generic_perform_write+0x2b6/0x550 mm/filemap.c:3785
 __generic_file_write_iter+0x25f/0x4e0 mm/filemap.c:3912
 ocfs2_file_write_iter+0x1670/0x1e70 fs/ocfs2/file.c:2472
 __kernel_write+0x51c/0x970 fs/read_write.c:539
 __dump_emit+0x249/0x370 fs/coredump.c:943
 dump_user_range+0x84/0x340 fs/coredump.c:1017
 elf_core_dump+0x2fbd/0x3500 fs/binfmt_elf.c:2285
 do_coredump+0x14c7/0x2ac0 fs/coredump.c:894
 get_signal+0x40a/0x12c0 kernel/signal.c:2886
 arch_do_signal_or_restart+0xe7/0x12c0 arch/x86/kernel/signal.c:867
 handle_signal_work kernel/entry/common.c:154 [inline]
 exit_to_user_mode_loop+0x9e/0x130 kernel/entry/common.c:178
 exit_to_user_mode_prepare+0xee/0x180 kernel/entry/common.c:214
 irqentry_exit_to_user_mode+0x5/0x30 kernel/entry/common.c:320
 exc_page_fault+0x88/0x100 arch/x86/mm/fault.c:1499
 asm_exc_page_fault+0x22/0x30 arch/x86/include/asm/idtentry.h:606
RIP: 0033:0x7fb2fbf057a1
Code: 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f
RSP: 002b:fffffffffffffe70 EFLAGS: 00010217
RAX: 0000000000000000 RBX: 00007fb2fc17efa0 RCX: 00007fb2fbf05799
RDX: 0000000000000000 RSI: fffffffffffffe70 RDI: 0000000000008000
RBP: 00007fb2fbf9bc99 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000
R13: 00007fb2fc17f038 R14: 00007fb2fc17efa0 R15: 00007ffee4332568
 </TASK>
Modules linked in:
---[ end trace c2842406a63f6885 ]---
RIP: 0010:ocfs2_write_cluster fs/ocfs2/aops.c:1181 [inline]
RIP: 0010:ocfs2_write_cluster_by_desc+0x1de4/0x1e10 fs/ocfs2/aops.c:1242
Code: 00 00 48 c7 c6 0d 6c c6 8b ba 80 04 00 00 48 c7 c1 80 ba 67 8a e8 1c 32 1a 00 48 8b 44 24 08 c6 40 1e f8 0f 0b e8 3c e0 5e fe <0f> 0b e8 35 e0 5e fe 0f 0b e8 2e e0 5e fe 0f 0b e8 27 e0 5e fe 0f
RSP: 0000:ffffc900037be3c0 EFLAGS: 00010293
RAX: ffffffff831a40d4 RBX: ffff88807b030014 RCX: ffff888025c38000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc900037be6f0 R08: ffff88805f280723 R09: 1ffff1100be500e4
R10: dffffc0000000000 R11: ffffed100be500e5 R12: ffff88807a018000
R13: dffffc0000000000 R14: 0000000000000000 R15: ffff88807b030014
FS:  00007fb2fa15f6c0(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00002000000001c0 CR3: 00000000627be000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400