loop9: detected capacity change from 0 to 32768
ocfs2: Mounting device (7,9) on (node local, slot 0) with writeback data mode.
------------[ cut here ]------------
kernel BUG at fs/ocfs2/uptodate.c:509!
Oops: invalid opcode: 0000 [#1] SMP KASAN PTI
CPU: 1 UID: 0 PID: 7187 Comm: syz.9.153 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_set_new_buffer_uptodate+0x149/0x170
Code: 80 3c 20 00 74 08 4c 89 f7 e8 e3 b2 72 fe 4d 8b 1e 48 89 df 5b 41 5c 41 5d 41 5e 41 5f 5d 2e e9 5d 2e cf 07 e8 98 0f 0d fe 90 <0f> 0b e8 90 0f 0d fe 90 0f 0b e8 88 0f 0d fe 90 0f 0b e8 80 0f 0d
RSP: 0018:ffffc90004d069c8 EFLAGS: 00010283
RAX: ffffffff83b34b88 RBX: ffff888112f796b0 RCX: 0000000000080000
RDX: ffffc90025404000 RSI: 0000000000000caa RDI: 0000000000000cab
RBP: 0000000000000001 R08: ffffffff8fc35777 R09: 1ffffffff1f86aee
R10: dffffc0000000000 R11: fffffbfff1f86aef R12: 1ffff920009a0d6c
R13: dffffc0000000000 R14: ffff888112ff5658 R15: ffff888112ff5658
FS:  00007f83d9a096c0(0000) GS:ffff8881a39fc000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c31bc1f CR3: 0000000126822000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 ocfs2_extend_dir+0x1172/0x4870
 ocfs2_prepare_dir_for_insert+0x3d7b/0x5450
 ocfs2_mknod+0x819/0x2050
 ocfs2_mkdir+0x191/0x440
 vfs_mkdir+0x306/0x510
 do_mkdirat+0x247/0x590
 __x64_sys_mkdir+0x6c/0x80
 do_syscall_64+0xfa/0xfa0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f83d8b8ec29
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:00007f83d9a09038 EFLAGS: 00000246 ORIG_RAX: 0000000000000053
RAX: ffffffffffffffda RBX: 00007f83d8dd5fa0 RCX: 00007f83d8b8ec29
RDX: 0000000000000000 RSI: 00000000000000c4 RDI: 0000200000000280
RBP: 00007f83d8c11e41 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f83d8dd6038 R14: 00007f83d8dd5fa0 R15: 00007fff25e79938
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:ocfs2_set_new_buffer_uptodate+0x149/0x170
Code: 80 3c 20 00 74 08 4c 89 f7 e8 e3 b2 72 fe 4d 8b 1e 48 89 df 5b 41 5c 41 5d 41 5e 41 5f 5d 2e e9 5d 2e cf 07 e8 98 0f 0d fe 90 <0f> 0b e8 90 0f 0d fe 90 0f 0b e8 88 0f 0d fe 90 0f 0b e8 80 0f 0d
RSP: 0018:ffffc90004d069c8 EFLAGS: 00010283
RAX: ffffffff83b34b88 RBX: ffff888112f796b0 RCX: 0000000000080000
RDX: ffffc90025404000 RSI: 0000000000000caa RDI: 0000000000000cab
RBP: 0000000000000001 R08: ffffffff8fc35777 R09: 1ffffffff1f86aee
R10: dffffc0000000000 R11: fffffbfff1f86aef R12: 1ffff920009a0d6c
R13: dffffc0000000000 R14: ffff888112ff5658 R15: ffff888112ff5658
FS:  00007f83d9a096c0(0000) GS:ffff8881a39fc000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c31bc1f CR3: 0000000126822000 CR4: 00000000000006f0
