------------[ cut here ]------------
btrfs_abort_should_print_stack(__error)
WARNING: fs/btrfs/inode.c:6751 at btrfs_create_new_inode+0x1ddc/0x1ee0 fs/btrfs/inode.c:6751, CPU#0: syz.0.0/5310
Modules linked in:
CPU: 0 UID: 0 PID: 5310 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:btrfs_create_new_inode+0x1ddc/0x1ee0 fs/btrfs/inode.c:6751
Code: 00 00 00 83 fb f4 0f 85 e8 00 00 00 e8 dd c4 b3 fd e9 e7 00 00 00 e8 d3 c4 b3 fd eb 10 e8 cc c4 b3 fd eb 09 e8 c5 c4 b3 fd 90 <0f> 0b 90 89 d9 f7 d9 e9 b8 f8 ff ff e8 b3 c4 b3 fd eb 10 e8 ac c4
RSP: 0018:ffffc9000f3b79c0 EFLAGS: 00010283
RAX: ffffffff84134ceb RBX: 00000000ffffffe4 RCX: 0000000000100000
RDX: ffffc90020001000 RSI: 0000000000001caf RDI: 0000000000001cb0
RBP: ffffc9000f3b7bf0 R08: ffff888012504a80 R09: 0000000000000003
R10: 00000000fffffffb R11: 0000000000000002 R12: ffff888043a4e7b8
R13: ffff888043a0c610 R14: 00000000ffffffe4 R15: ffff888052450001
FS:  00007f8502cee6c0(0000) GS:ffff88808c549000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f8502cccfe8 CR3: 0000000043172000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 btrfs_create_common+0x189/0x310 fs/btrfs/inode.c:6978
 btrfs_mkdir+0xc7/0xf0 fs/btrfs/inode.c:7117
 vfs_mkdir+0x406/0x620 fs/namei.c:5276
 filename_mkdirat+0x285/0x510 fs/namei.c:5309
 __do_sys_mkdirat fs/namei.c:5330 [inline]
 __se_sys_mkdirat+0x35/0x150 fs/namei.c:5327
 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: 0033:0x7f8501d9e0d9
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:00007f8502cedfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000102
RAX: ffffffffffffffda RBX: 00007f8502026090 RCX: 00007f8501d9e0d9
RDX: 00000000000001ff RSI: 0000200000000000 RDI: ffffffffffffff9c
RBP: 00007f8501e35024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f8502026128 R14: 00007f8502026090 R15: 00007ffd165b4128
 </TASK>