loop0: detected capacity change from 0 to 32768
JBD2: Ignoring recovery information on journal
ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode.
(syz.0.0,5322,0):ocfs2_mknod:506 ERROR: status = -31
(syz.0.0,5322,0):ocfs2_mkdir:662 ERROR: status = -31
------------[ cut here ]------------
kernel BUG at fs/ocfs2/aops.c:1161!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 5322 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
RIP: 0010:ocfs2_write_cluster fs/ocfs2/aops.c:1161 [inline]
RIP: 0010:ocfs2_write_cluster_by_desc+0x1da7/0x1dd0 fs/ocfs2/aops.c:1221
Code: 48 c7 c6 1b af 28 8e ba 6c 04 00 00 48 c7 c1 a0 41 34 8c e8 eb eb 1c 00 48 8b 44 24 10 c6 40 1e f8 90 0f 0b e8 3a 00 e7 fd 90 <0f> 0b e8 32 00 e7 fd 90 0f 0b e8 2a 00 e7 fd 90 0f 0b e8 22 00 e7
RSP: 0018:ffffc9000e0c6e80 EFLAGS: 00010246
RAX: ffffffff83e024e6 RBX: ffff88801335a488 RCX: 0000000000100000
RDX: ffffc9000f559000 RSI: 00000000000fffff RDI: 0000000000100000
RBP: ffffc9000e0c71d0 R08: ffff88801335a313 R09: 1ffff1100266b462
R10: dffffc0000000000 R11: ffffed100266b463 R12: 0000000000000000
R13: dffffc0000000000 R14: ffff888012d4e014 R15: 0000000000000000
FS:  00007f9874f3f6c0(0000) GS:ffff88808c53f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000600000 CR3: 000000001f535000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 ocfs2_write_begin_nolock+0x3346/0x41f0 fs/ocfs2/aops.c:1797
 ocfs2_write_begin+0x1ba/0x310 fs/ocfs2/aops.c:1885
 generic_perform_write+0x2d5/0x8f0 mm/filemap.c:4358
 ocfs2_file_write_iter+0x1706/0x1f10 fs/ocfs2/file.c:2481
 new_sync_write fs/read_write.c:595 [inline]
 vfs_write+0x612/0xba0 fs/read_write.c:687
 ksys_write+0x150/0x270 fs/read_write.c:739
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f9873f9e019
Code: ff c3 66 2e 0f 1f 84 00 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
RSP: 002b:00007f9874f3efe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f9874225fa0 RCX: 00007f9873f9e019
RDX: 00000000fffffdef RSI: 00002000000000c0 RDI: 0000000000000006
RBP: 00007f987403500c R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f9874226038 R14: 00007f9874225fa0 R15: 00007ffd111c9ce8
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:ocfs2_write_cluster fs/ocfs2/aops.c:1161 [inline]
RIP: 0010:ocfs2_write_cluster_by_desc+0x1da7/0x1dd0 fs/ocfs2/aops.c:1221
Code: 48 c7 c6 1b af 28 8e ba 6c 04 00 00 48 c7 c1 a0 41 34 8c e8 eb eb 1c 00 48 8b 44 24 10 c6 40 1e f8 90 0f 0b e8 3a 00 e7 fd 90 <0f> 0b e8 32 00 e7 fd 90 0f 0b e8 2a 00 e7 fd 90 0f 0b e8 22 00 e7
RSP: 0018:ffffc9000e0c6e80 EFLAGS: 00010246
RAX: ffffffff83e024e6 RBX: ffff88801335a488 RCX: 0000000000100000
RDX: ffffc9000f559000 RSI: 00000000000fffff RDI: 0000000000100000
RBP: ffffc9000e0c71d0 R08: ffff88801335a313 R09: 1ffff1100266b462
R10: dffffc0000000000 R11: ffffed100266b463 R12: 0000000000000000
R13: dffffc0000000000 R14: ffff888012d4e014 R15: 0000000000000000
FS:  00007f9874f3f6c0(0000) GS:ffff88808c53f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000600000 CR3: 000000001f535000 CR4: 0000000000352ef0