------------[ cut here ]------------
kernel BUG at fs/ocfs2/aops.c:1159!
Oops: invalid opcode: 0000 [#1] SMP KASAN PTI
CPU: 1 UID: 0 PID: 11715 Comm: syz.5.1257 Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:ocfs2_write_cluster_by_desc+0x1db4/0x1de0
Code: 00 48 c7 c6 d8 ee f4 8d ba 6a 04 00 00 48 c7 c1 60 16 12 8c e8 3d fd 1c 00 48 8b 04 24 c6 40 1e f8 90 0f 0b e8 fd ab 0d fe 90 <0f> 0b e8 f5 ab 0d fe 90 0f 0b e8 ed ab 0d fe 90 0f 0b e8 e5 ab 0d
RSP: 0000:ffffc90008675c80 EFLAGS: 00010293
RAX: ffffffff83b7e8b3 RBX: ffff888170b8e014 RCX: ffff888173f5ba80
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90008675fb0 R08: ffff8881b935cfa3 R09: 1ffff1103726b9f4
R10: dffffc0000000000 R11: ffffed103726b9f5 R12: ffff888113d20000
R13: dffffc0000000000 R14: 0000000000000000 R15: ffff888170b8e014
FS:  00007ff7e99f66c0(0000) GS:ffff8882a9462000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff7ec5a5990 CR3: 00000001b372c000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 ocfs2_write_begin_nolock+0x3316/0x41e0
 ocfs2_write_begin+0x1c5/0x320
 generic_perform_write+0x2e2/0x8f0
 ocfs2_file_write_iter+0x1663/0x1ed0
 __kernel_write_iter+0x41e/0x880
 dump_user_range+0xc19/0x12c0
 elf_core_dump+0x34c2/0x3ad0
 coredump_write+0x1216/0x1910
 vfs_coredump+0x36a9/0x4280
 get_signal+0x1107/0x1330
 arch_do_signal_or_restart+0xbc/0x830
 exit_to_user_mode_loop+0x86/0x480
 do_syscall_64+0x32d/0xf80
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0017:0x200000001000
Code: Unable to access opcode bytes at 0x200000000fd6.
RSP: 002b:0000000000000000 EFLAGS: 00000302 ORIG_RAX: 0000000000000000
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:ocfs2_write_cluster_by_desc+0x1db4/0x1de0
Code: 00 48 c7 c6 d8 ee f4 8d ba 6a 04 00 00 48 c7 c1 60 16 12 8c e8 3d fd 1c 00 48 8b 04 24 c6 40 1e f8 90 0f 0b e8 fd ab 0d fe 90 <0f> 0b e8 f5 ab 0d fe 90 0f 0b e8 ed ab 0d fe 90 0f 0b e8 e5 ab 0d
RSP: 0000:ffffc90008675c80 EFLAGS: 00010293
RAX: ffffffff83b7e8b3 RBX: ffff888170b8e014 RCX: ffff888173f5ba80
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90008675fb0 R08: ffff8881b935cfa3 R09: 1ffff1103726b9f4
R10: dffffc0000000000 R11: ffffed103726b9f5 R12: ffff888113d20000
R13: dffffc0000000000 R14: 0000000000000000 R15: ffff888170b8e014
FS:  00007ff7e99f66c0(0000) GS:ffff8882a9462000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000000fd6 CR3: 00000001b372c000 CR4: 00000000000006f0
