loop5: detected capacity change from 0 to 32768
ocfs2: Mounting device (7,5) on (node local, slot 0) with writeback data mode.
------------[ cut here ]------------
kernel BUG at fs/ocfs2/aops.c:1159!
Oops: invalid opcode: 0000 [#1] SMP KASAN PTI
CPU: 0 UID: 0 PID: 8740 Comm: syz.5.566 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 19 77 9f 8d ba 6a 04 00 00 48 c7 c1 00 49 ca 8b e8 c8 51 1b 00 90 0f 0b e8 70 cc 26 fe 90 <0f> 0b e8 68 cc 26 fe 90 0f 0b e8 60 cc 26 fe 90 0f 0b e8 58 cc 26
RSP: 0018:ffffc900046dee60 EFLAGS: 00010283
RAX: ffffffff8398df20 RBX: ffff888027096014 RCX: 0000000000080000
RDX: ffffc9000426c000 RSI: 000000000000056f RDI: 0000000000000570
RBP: ffffc900046df190 R08: ffff888033a6c123 R09: 1ffff1100674d824
R10: dffffc0000000000 R11: ffffed100674d825 R12: ffff8881054fc000
R13: dffffc0000000000 R14: 0000000000000000 R15: ffff888027096014
FS:  00007f178db4d6c0(0000) GS:ffff8880b861b000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000556ab0da37e8 CR3: 000000010a0c0000 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/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f178cd8ebe9
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:00007f178db4d038 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f178cfc5fa0 RCX: 00007f178cd8ebe9
RDX: 0000000000032600 RSI: 0000200000000100 RDI: 0000000000000004
RBP: 00007f178ce11e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f178cfc6038 R14: 00007f178cfc5fa0 R15: 00007ffc374e42e8
 </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 19 77 9f 8d ba 6a 04 00 00 48 c7 c1 00 49 ca 8b e8 c8 51 1b 00 90 0f 0b e8 70 cc 26 fe 90 <0f> 0b e8 68 cc 26 fe 90 0f 0b e8 60 cc 26 fe 90 0f 0b e8 58 cc 26
RSP: 0018:ffffc900046dee60 EFLAGS: 00010283
RAX: ffffffff8398df20 RBX: ffff888027096014 RCX: 0000000000080000
RDX: ffffc9000426c000 RSI: 000000000000056f RDI: 0000000000000570
RBP: ffffc900046df190 R08: ffff888033a6c123 R09: 1ffff1100674d824
R10: dffffc0000000000 R11: ffffed100674d825 R12: ffff8881054fc000
R13: dffffc0000000000 R14: 0000000000000000 R15: ffff888027096014
FS:  00007f178db4d6c0(0000) GS:ffff8880b861b000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000556ab0da37e8 CR3: 000000010a0c0000 CR4: 00000000000006f0
