loop2: detected capacity change from 0 to 32768
debugfs: 'B1DE653C5FFC4D88B33B244AAB9EB3E9' already exists in 'ocfs2'
ocfs2: Mounting device (7,2) 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: 17454 Comm: syz.2.1691 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 ac e3 74 8d ba 6a 04 00 00 48 c7 c1 c0 e6 aa 8b e8 28 51 1b 00 90 0f 0b e8 30 97 20 fe 90 <0f> 0b e8 28 97 20 fe 90 0f 0b e8 20 97 20 fe 90 0f 0b e8 18 97 20
RSP: 0018:ffffc90007c56e60 EFLAGS: 00010287
RAX: ffffffff839f81e0 RBX: ffff88810c26a014 RCX: 0000000000080000
RDX: ffffc90026ec7000 RSI: 00000000000009ea RDI: 00000000000009eb
RBP: ffffc90007c57190 R08: ffff888116e75e23 R09: 1ffff11022dcebc4
R10: dffffc0000000000 R11: ffffed1022dcebc5 R12: ffff88816f574000
R13: dffffc0000000000 R14: 0000000000000000 R15: ffff88810c26a014
FS:  00007f3c636206c0(0000) GS:ffff88818eb34000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555578ab9608 CR3: 0000000198f72000 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
 __x64_sys_pwrite64+0x193/0x220
 do_syscall_64+0xfa/0xfa0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f3c6278f749
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:00007f3c63620038 EFLAGS: 00000246 ORIG_RAX: 0000000000000012
RAX: ffffffffffffffda RBX: 00007f3c629e5fa0 RCX: 00007f3c6278f749
RDX: 0000000000000001 RSI: 0000200000000140 RDI: 0000000000000006
RBP: 00007f3c62813f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000008000c61 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f3c629e6038 R14: 00007f3c629e5fa0 R15: 00007ffd1540e898
 </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 ac e3 74 8d ba 6a 04 00 00 48 c7 c1 c0 e6 aa 8b e8 28 51 1b 00 90 0f 0b e8 30 97 20 fe 90 <0f> 0b e8 28 97 20 fe 90 0f 0b e8 20 97 20 fe 90 0f 0b e8 18 97 20
RSP: 0018:ffffc90007c56e60 EFLAGS: 00010287
RAX: ffffffff839f81e0 RBX: ffff88810c26a014 RCX: 0000000000080000
RDX: ffffc90026ec7000 RSI: 00000000000009ea RDI: 00000000000009eb
RBP: ffffc90007c57190 R08: ffff888116e75e23 R09: 1ffff11022dcebc4
R10: dffffc0000000000 R11: ffffed1022dcebc5 R12: ffff88816f574000
R13: dffffc0000000000 R14: 0000000000000000 R15: ffff88810c26a014
FS:  00007f3c636206c0(0000) GS:ffff88818eb34000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c450bd4 CR3: 0000000198f72000 CR4: 00000000000006f0
