RDX: 00007f29c1d16ae0 RSI: 00000000200001c0 RDI: 00007f29c1d16b00
RBP: 000000000078bf00 R08: 00007f29c1d16b40 R09: 00007f29c1d16ae0
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000003
R13: 0000000000000bd9 R14: 00000000004cdf51 R15: 00007f29c1d176d4
------------[ cut here ]------------
kernel BUG at fs/btrfs/volumes.c:890!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
Modules linked in:
CPU: 0 PID: 23032 Comm: syz-executor.4 Not tainted 4.14.176-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff888036d7c380 task.stack: ffff888036228000
RIP: 0010:btrfs_prepare_close_one_device fs/btrfs/volumes.c:890 [inline]
RIP: 0010:__btrfs_close_devices+0x798/0xa30 fs/btrfs/volumes.c:915
RSP: 0018:ffff88803622f748 EFLAGS: 00010246
RAX: 0000000000040000 RBX: ffff88809bdc8d80 RCX: ffffc90005d5f000
RDX: 0000000000040000 RSI: ffffffff828d8178 RDI: 0000000000000282
RBP: dffffc0000000000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffff888094b675c0
R13: ffff88809bdc8e48 R14: fffffffffffffff4 R15: ffff88809bdc8d80
FS:  00007f29c1d17700(0000) GS:ffff8880aea00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c41f3943f7 CR3: 00000000a0258000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 btrfs_close_devices+0x24/0x140 fs/btrfs/volumes.c:948
 btrfs_mount+0x1de5/0x282d fs/btrfs/super.c:1642
 mount_fs+0x92/0x2a0 fs/super.c:1237
 vfs_kern_mount.part.0+0x5b/0x3c0 fs/namespace.c:1046
 vfs_kern_mount+0x3c/0x60 fs/namespace.c:1036
 mount_subvol fs/btrfs/super.c:1392 [inline]
 btrfs_mount+0x3cc/0x282d fs/btrfs/super.c:1563
 mount_fs+0x92/0x2a0 fs/super.c:1237
 vfs_kern_mount.part.0+0x5b/0x3c0 fs/namespace.c:1046
 vfs_kern_mount fs/namespace.c:1036 [inline]
 do_new_mount fs/namespace.c:2549 [inline]
 do_mount+0x3c9/0x24f0 fs/namespace.c:2879
 SYSC_mount fs/namespace.c:3095 [inline]
 SyS_mount+0xa8/0x120 fs/namespace.c:3072
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x45f27a
RSP: 002b:00007f29c1d16a68 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 0000000000508100 RCX: 000000000045f27a
RDX: 00007f29c1d16ae0 RSI: 00000000200001c0 RDI: 00007f29c1d16b00
RBP: 000000000078bf00 R08: 00007f29c1d16b40 R09: 00007f29c1d16ae0
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000003
R13: 0000000000000bd9 R14: 00000000004cdf51 R15: 00007f29c1d176d4
Code: ea 03 0f b6 04 02 84 c0 74 08 3c 03 0f 8e 40 02 00 00 48 8b 44 24 08 c7 80 10 01 00 00 00 00 00 00 e9 27 f9 ff ff e8 28 c5 cc fe <0f> 0b e8 21 c5 cc fe 0f 0b 48 89 cf e8 77 17 f6 fe e9 f1 f8 ff 
RIP: btrfs_prepare_close_one_device fs/btrfs/volumes.c:890 [inline] RSP: ffff88803622f748
RIP: __btrfs_close_devices+0x798/0xa30 fs/btrfs/volumes.c:915 RSP: ffff88803622f748
---[ end trace 5732310cb00bccd8 ]---