RDX: 00007f3e7c518ae0 RSI: 00000000200001c0 RDI: 00007f3e7c518b00
RBP: 000000000075bf20 R08: 00007f3e7c518b40 R09: 00007f3e7c518ae0
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003
R13: 0000000000000ba0 R14: 00000000004cc763 R15: 0000000000000058
------------[ cut here ]------------
kernel BUG at fs/btrfs/volumes.c:890!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
Modules linked in:
CPU: 0 PID: 7410 Comm: syz-executor.3 Not tainted 4.14.174-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff88808db661c0 task.stack: ffff88808bc88000
RIP: 0010:btrfs_prepare_close_one_device fs/btrfs/volumes.c:890 [inline]
RIP: 0010:__btrfs_close_devices+0x761/0xd20 fs/btrfs/volumes.c:915
RSP: 0018:ffff88808bc8f598 EFLAGS: 00010202
RAX: fffffffffffffff4 RBX: ffff88808f2f2020 RCX: 1ffff11011b6cd51
RDX: 0000000000000000 RSI: ffff88808db66a68 RDI: 0000000000000286
RBP: ffff88808bc8f678 R08: fffffffffffffff4 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: dffffc0000000000
R13: ffff88808dad20c8 R14: ffff88808f2f2000 R15: ffff88808f2f2000
FS:  00007f3e7c519700(0000) GS:ffff8880aec00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000000075c091 CR3: 000000009294b000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 btrfs_close_devices+0x24/0x120 fs/btrfs/volumes.c:948
 btrfs_mount+0x1c2e/0x283d fs/btrfs/super.c:1642
 mount_fs+0x7f/0x269 fs/super.c:1237
 vfs_kern_mount.part.33+0x58/0x3c0 fs/namespace.c:1046
 vfs_kern_mount+0xe/0x20 fs/namespace.c:1032
 mount_subvol fs/btrfs/super.c:1392 [inline]
 btrfs_mount+0x36d/0x283d fs/btrfs/super.c:1563
 mount_fs+0x7f/0x269 fs/super.c:1237
 vfs_kern_mount.part.33+0x58/0x3c0 fs/namespace.c:1046
 vfs_kern_mount fs/namespace.c:1036 [inline]
 do_new_mount fs/namespace.c:2549 [inline]
 do_mount+0x36b/0x26a0 fs/namespace.c:2879
 SYSC_mount fs/namespace.c:3095 [inline]
 SyS_mount+0xb8/0xd0 fs/namespace.c:3072
 do_syscall_64+0x1c7/0x5b0 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x45ddea
RSP: 002b:00007f3e7c518a68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f3e7c5196d4 RCX: 000000000045ddea
RDX: 00007f3e7c518ae0 RSI: 00000000200001c0 RDI: 00007f3e7c518b00
RBP: 000000000075bf20 R08: 00007f3e7c518b40 R09: 00007f3e7c518ae0
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003
R13: 0000000000000ba0 R14: 00000000004cc763 R15: 0000000000000058
Code: 00 0f 85 9d 05 00 00 48 8d 7a 20 4d 89 46 18 48 89 f8 48 c1 e8 03 42 80 3c 20 00 0f 85 b9 03 00 00 48 83 6a 20 01 e9 c1 fa ff ff <0f> 0b 0f 0b 48 89 cf e8 53 ea ee fe e9 2d f9 ff ff 0f 0b e9 8b 
RIP: btrfs_prepare_close_one_device fs/btrfs/volumes.c:890 [inline] RSP: ffff88808bc8f598
RIP: __btrfs_close_devices+0x761/0xd20 fs/btrfs/volumes.c:915 RSP: ffff88808bc8f598
---[ end trace 5c90f698a4d3b007 ]---