------------[ cut here ]------------
kernel BUG at fs/ocfs2/aops.c:1159!
Oops: invalid opcode: 0000 [#1] SMP KASAN PTI
CPU: 0 UID: 0 PID: 6364 Comm: syz.2.100 Not tainted syzkaller #0 PREEMPT(full) 
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+0x1cc1/0x1cf0
Code: 03 48 8d bc 24 10 02 00 00 48 c7 c6 67 d9 bf 8d ba 6a 04 00 00 48 c7 c1 c0 7d ea 8b e8 78 53 1b 00 90 0f 0b e8 d0 c1 25 fe 90 <0f> 0b e8 c8 c1 25 fe 90 0f 0b e8 c0 c1 25 fe 90 0f 0b e8 b8 c1 25
RSP: 0018:ffffc9000772ee60 EFLAGS: 00010287
RAX: ffffffff839b0a10 RBX: ffff88811debc014 RCX: 0000000000080000
RDX: ffffc90021deb000 RSI: 000000000000089e RDI: 000000000000089f
RBP: ffffc9000772f190 R08: ffff88803c97b2a3 R09: 1ffff1100792f654
R10: dffffc0000000000 R11: ffffed100792f655 R12: ffff888037f4c000
R13: dffffc0000000000 R14: 0000000000000000 R15: ffff88811debc014
FS:  00007f646ec286c0(0000) GS:ffff8880b83fa000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b32213ff8 CR3: 000000003774c000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 ocfs2_write_begin_nolock+0x31a3/0x4340
 ocfs2_write_begin+0x1bb/0x310
 generic_perform_write+0x2c5/0x900
 ocfs2_file_write_iter+0x157a/0x1d10
 vfs_write+0x5c9/0xb30
 ksys_write+0x145/0x250
 do_syscall_64+0xfa/0xfa0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f646dd8ebe9
Code: ff ff c3 66 2e 0f 1f 84 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
RSP: 002b:00007f646ec28038 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f646dfc6090 RCX: 00007f646dd8ebe9
RDX: 000000000208e24b RSI: 00002000000004c0 RDI: 000000000000000a
RBP: 00007f646de11e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f646dfc6128 R14: 00007f646dfc6090 R15: 00007ffdf4048b68
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:ocfs2_write_cluster_by_desc+0x1cc1/0x1cf0
Code: 03 48 8d bc 24 10 02 00 00 48 c7 c6 67 d9 bf 8d ba 6a 04 00 00 48 c7 c1 c0 7d ea 8b e8 78 53 1b 00 90 0f 0b e8 d0 c1 25 fe 90 <0f> 0b e8 c8 c1 25 fe 90 0f 0b e8 c0 c1 25 fe 90 0f 0b e8 b8 c1 25
RSP: 0018:ffffc9000772ee60 EFLAGS: 00010287
RAX: ffffffff839b0a10 RBX: ffff88811debc014 RCX: 0000000000080000
RDX: ffffc90021deb000 RSI: 000000000000089e RDI: 000000000000089f
RBP: ffffc9000772f190 R08: ffff88803c97b2a3 R09: 1ffff1100792f654
R10: dffffc0000000000 R11: ffffed100792f655 R12: ffff888037f4c000
R13: dffffc0000000000 R14: 0000000000000000 R15: ffff88811debc014
FS:  00007f646ec286c0(0000) GS:ffff8880b83fa000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00002000000003f0 CR3: 000000003774c000 CR4: 00000000000006f0
