------------[ cut here ]------------
kernel BUG at fs/btrfs/volumes.c:1275!
invalid opcode: 0000 [#1] PREEMPT SMP
CPU: 0 PID: 967 Comm: syz-executor.3 Not tainted 5.3.0+ #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:btrfs_close_one_device fs/btrfs/volumes.c:1275 [inline]
RIP: 0010:close_fs_devices.part.0+0x4ff/0x510 fs/btrfs/volumes.c:1300
Code: 00 00 e8 84 5d 55 ff 48 8b 45 d0 65 48 33 04 25 28 00 00 00 75 1d 48 83 c4 60 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 61 82 48 ff <0f> 0b e8 5a 82 48 ff 0f 0b e8 83 7e 30 ff 0f 1f 00 55 48 89 e5 41
RSP: 0018:ffffc90000e9b9f8 EFLAGS: 00010246
RAX: 0000000000040000 RBX: fffffffffffffff4 RCX: ffffc9000eb64000
RDX: 0000000000040000 RSI: ffffffff81fd73bf RDI: 0000000000000007
RBP: ffffc90000e9ba80 R08: ffff88808c87f040 R09: ffffc90000e9b4e7
R10: 0000000037363954 R11: 0000000037363954 R12: 0000000000000000
R13: ffff88809dfb74a8 R14: ffff88809dfb74b8 R15: ffff88809dfb7400
FS:  00007fb34232d700(0000) GS:ffff88812be00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000004 CR3: 000000008ca59000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 close_fs_devices fs/btrfs/volumes.c:1332 [inline]
 btrfs_close_devices+0x92/0x170 fs/btrfs/volumes.c:1318
 btrfs_mount_root+0xa34/0xb00 fs/btrfs/super.c:1572
 legacy_get_tree+0x7e/0xf0 fs/fs_context.c:661
 vfs_get_tree+0x58/0x200 fs/super.c:1413
 fc_mount+0x20/0x80 fs/namespace.c:962
 vfs_kern_mount.part.0+0xe6/0xf0 fs/namespace.c:992
 vfs_kern_mount+0x49/0x70 fs/namespace.c:979
 btrfs_mount+0x250/0xf41 fs/btrfs/super.c:1619
 legacy_get_tree+0x7e/0xf0 fs/fs_context.c:661
 vfs_get_tree+0x58/0x200 fs/super.c:1413
 do_new_mount fs/namespace.c:2791 [inline]
 do_mount+0x1045/0x1580 fs/namespace.c:3111
 ksys_mount+0xe8/0x160 fs/namespace.c:3320
 __do_sys_mount fs/namespace.c:3334 [inline]
 __se_sys_mount fs/namespace.c:3331 [inline]
 __x64_sys_mount+0x70/0x90 fs/namespace.c:3331
 do_syscall_64+0xcf/0x2f0 arch/x86/entry/common.c:296
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x45c47a
Code: b8 a6 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 9d 8d fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 7a 8d fb ff c3 66 0f 1f 84 00 00 00 00 00
RSP: 002b:00007fb34232ca88 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007fb34232cb40 RCX: 000000000045c47a
RDX: 00007fb34232cae0 RSI: 0000000020000100 RDI: 00007fb34232cb00
RBP: 0000000000000001 R08: 00007fb34232cb40 R09: 00007fb34232cae0
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000005
R13: 00000000004c8d37 R14: 00000000004e0180 R15: 0000000000000004
Modules linked in:
---[ end trace 7528f5712372e96a ]---
RIP: 0010:btrfs_close_one_device fs/btrfs/volumes.c:1275 [inline]
RIP: 0010:close_fs_devices.part.0+0x4ff/0x510 fs/btrfs/volumes.c:1300
Code: 00 00 e8 84 5d 55 ff 48 8b 45 d0 65 48 33 04 25 28 00 00 00 75 1d 48 83 c4 60 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 61 82 48 ff <0f> 0b e8 5a 82 48 ff 0f 0b e8 83 7e 30 ff 0f 1f 00 55 48 89 e5 41
RSP: 0018:ffffc90000e9b9f8 EFLAGS: 00010246
RAX: 0000000000040000 RBX: fffffffffffffff4 RCX: ffffc9000eb64000
RDX: 0000000000040000 RSI: ffffffff81fd73bf RDI: 0000000000000007
RBP: ffffc90000e9ba80 R08: ffff88808c87f040 R09: ffffc90000e9b4e7
R10: 0000000037363954 R11: 0000000037363954 R12: 0000000000000000
R13: ffff88809dfb74a8 R14: ffff88809dfb74b8 R15: ffff88809dfb7400
FS:  00007fb34232d700(0000) GS:ffff88812bf00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 000000008ca59000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400