------------[ cut here ]------------
btrfs_abort_should_print_stack(__error)
WARNING: fs/btrfs/volumes.c:3055 at btrfs_init_new_device+0x1a4a/0x1b20, CPU#0: syz.0.50/5886
Modules linked in:
CPU: 0 UID: 0 PID: 5886 Comm: syz.0.50 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:btrfs_init_new_device+0x1a4a/0x1b20
Code: 00 00 41 83 ff f4 0f 85 d8 00 00 00 e8 2f 5e a5 fd e9 d7 00 00 00 e8 25 5e a5 fd eb 10 e8 1e 5e a5 fd eb 09 e8 17 5e a5 fd 90 <0f> 0b 90 44 89 f9 f7 d9 e9 79 fc ff ff 44 89 e9 80 e1 07 38 c1 0f
RSP: 0018:ffffc900074bfda0 EFLAGS: 00010287
RAX: ffffffff84225039 RBX: ffff8881bba58001 RCX: 0000000000080000
RDX: ffffc90007f71000 RSI: 0000000000001aa2 RDI: 0000000000001aa3
RBP: 0000000000000000 R08: ffff88810ecfda00 R09: 0000000000000003
R10: 00000000fffffffb R11: 0000000000000002 R12: ffff8881bba58000
R13: ffff8881bba58968 R14: dffffc0000000000 R15: 00000000ffffffef
FS:  00007faec42346c0(0000) GS:ffff88818d6e6000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007faec33eb840 CR3: 000000010aba4000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 btrfs_ioctl_add_dev+0x1ad/0x640
 __se_sys_ioctl+0xfc/0x170
 do_syscall_64+0x166/0x520
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7faec339e159
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:00007faec4234028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007faec3625fa0 RCX: 00007faec339e159
RDX: 0000200000001000 RSI: 000000005000940a RDI: 0000000000000005
RBP: 00007faec343506b R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007faec3626038 R14: 00007faec3625fa0 R15: 00007ffd3a98c818
 </TASK>
