------------[ cut here ]------------
kernel BUG at fs/btrfs/volumes.c:1266!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 26552 Comm: syz-executor.5 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:1266 [inline]
RIP: 0010:close_fs_devices+0x8ff/0x910 fs/btrfs/volumes.c:1291
Code: 8b 5d c0 e9 4f ff ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c 63 ff ff ff 48 89 df e8 db 66 fb fe e9 56 ff ff ff e8 b1 fe c1 fe <0f> 0b e8 aa fe c1 fe 0f 0b 0f 1f 84 00 00 00 00 00 55 48 89 e5 41
RSP: 0018:ffff88805cd37980 EFLAGS: 00010246
RAX: ffffffff82b143bf RBX: ffff88809285ea28 RCX: 0000000000040000
RDX: ffffc900109a6000 RSI: 000000000003ffff RDI: 0000000000040000
RBP: ffff88805cd37a10 R08: ffff88805cab4958 R09: fffffbfff12bb0b4
R10: fffffbfff12bb0b4 R11: 0000000000000000 R12: dffffc0000000000
R13: ffff88809285ea30 R14: ffff88809285e940 R15: ffff88809883e2c0
FS:  00007fbd6e35d700(0000) GS:ffff8880aeb00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000000046f020 CR3: 000000009cc0a000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 btrfs_close_devices+0x33/0x130 fs/btrfs/volumes.c:1309
 btrfs_mount_root+0xa9d/0x1050 fs/btrfs/super.c:1574
 legacy_get_tree+0xf9/0x1a0 fs/fs_context.c:659
 vfs_get_tree+0x8f/0x380 fs/super.c:1542
 fc_mount fs/namespace.c:962 [inline]
 vfs_kern_mount+0xc2/0x160 fs/namespace.c:992
 btrfs_mount+0x34f/0x18e0 fs/btrfs/super.c:1621
 legacy_get_tree+0xf9/0x1a0 fs/fs_context.c:659
 vfs_get_tree+0x8f/0x380 fs/super.c:1542
 do_new_mount fs/namespace.c:2825 [inline]
 do_mount+0x16c7/0x2510 fs/namespace.c:3145
 ksys_mount+0xcc/0x100 fs/namespace.c:3354
 __do_sys_mount fs/namespace.c:3368 [inline]
 __se_sys_mount fs/namespace.c:3365 [inline]
 __x64_sys_mount+0xbf/0xd0 fs/namespace.c:3365
 do_syscall_64+0xf7/0x1c0 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45c45a
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:00007fbd6e35ca88 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007fbd6e35cb40 RCX: 000000000045c45a
RDX: 00007fbd6e35cae0 RSI: 0000000020000100 RDI: 00007fbd6e35cb00
RBP: 0000000000000001 R08: 00007fbd6e35cb40 R09: 00007fbd6e35cae0
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000004
R13: 00000000004c8af1 R14: 00000000004dfba8 R15: 0000000000000003
Modules linked in:
---[ end trace ed6dd39678b22f79 ]---
RIP: 0010:btrfs_close_one_device fs/btrfs/volumes.c:1266 [inline]
RIP: 0010:close_fs_devices+0x8ff/0x910 fs/btrfs/volumes.c:1291
Code: 8b 5d c0 e9 4f ff ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c 63 ff ff ff 48 89 df e8 db 66 fb fe e9 56 ff ff ff e8 b1 fe c1 fe <0f> 0b e8 aa fe c1 fe 0f 0b 0f 1f 84 00 00 00 00 00 55 48 89 e5 41
RSP: 0018:ffff88805cd37980 EFLAGS: 00010246
RAX: ffffffff82b143bf RBX: ffff88809285ea28 RCX: 0000000000040000
RDX: ffffc900109a6000 RSI: 000000000003ffff RDI: 0000000000040000
RBP: ffff88805cd37a10 R08: ffff88805cab4958 R09: fffffbfff12bb0b4
R10: fffffbfff12bb0b4 R11: 0000000000000000 R12: dffffc0000000000
R13: ffff88809285ea30 R14: ffff88809285e940 R15: ffff88809883e2c0
FS:  00007fbd6e35d700(0000) GS:ffff8880aea00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f5337831db8 CR3: 000000009cc0a000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400