BTRFS error (device loop5): open_ctree failed
print_req_error: I/O error, dev loop0, sector 128
kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] SMP KASAN
CPU: 0 PID: 18787 Comm: syz-executor3 Not tainted 4.17.0+ #92
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:open_fs_devices+0x7e8/0xc60 fs/btrfs/volumes.c:1124
Code: 48 8b 85 e0 fe ff ff 41 c7 87 14 01 00 00 01 00 00 00 48 8d b8 a0 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 01 04 00 00 48 8b 85 e0 fe ff ff 49 8d 7f 50 48 
RSP: 0018:ffff8801b62af1d8 EFLAGS: 00010206
RAX: dffffc0000000000 RBX: 0000000000000001 RCX: ffffc900036c0000
RDX: 0000000000000014 RSI: ffffffff82c54f0d RDI: 00000000000000a0
RBP: ffff8801b62af348 R08: ffff88018091e400 R09: ffffed003718d670
R10: ffffed003718d670 R11: ffff8801b8c6b383 R12: ffff8801ba2cb698
R13: ffff8801b62af2a0 R14: dffffc0000000000 R15: ffff8801ba2cb5c0
FS:  00007f8a68d09700(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000004bae6a CR3: 00000001c837b000 CR4: 00000000001406f0
DR0: 00000000200001c0 DR1: 00000000200001c0 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
 btrfs_open_devices+0xc0/0xd0 fs/btrfs/volumes.c:1155
 btrfs_mount_root+0x91f/0x1e70 fs/btrfs/super.c:1568
 mount_fs+0xae/0x328 fs/super.c:1277
 vfs_kern_mount.part.34+0xd4/0x4d0 fs/namespace.c:1037
 vfs_kern_mount+0x40/0x60 fs/namespace.c:1027
 btrfs_mount+0x4a1/0x213e fs/btrfs/super.c:1661
 mount_fs+0xae/0x328 fs/super.c:1277
 vfs_kern_mount.part.34+0xd4/0x4d0 fs/namespace.c:1037
 vfs_kern_mount fs/namespace.c:1027 [inline]
 do_new_mount fs/namespace.c:2518 [inline]
 do_mount+0x564/0x30b0 fs/namespace.c:2848
 ksys_mount+0x12d/0x140 fs/namespace.c:3064
 __do_sys_mount fs/namespace.c:3078 [inline]
 __se_sys_mount fs/namespace.c:3075 [inline]
 __x64_sys_mount+0xbe/0x150 fs/namespace.c:3075
 do_syscall_64+0x1b1/0x800 arch/x86/entry/common.c:287
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45842a
Code: b8 a6 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 dd 8f 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 ba 8f fb ff c3 66 0f 1f 84 00 00 00 00 00 
RSP: 002b:00007f8a68d08ba8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 0000000020000080 RCX: 000000000045842a
RDX: 0000000020000080 RSI: 00000000200004c0 RDI: 00007f8a68d08bf0
RBP: 0000000000000001 R08: 0000000020000240 R09: 0000000020000080
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000014
R13: 0000000000000001 R14: 00000000004d2bc0 R15: 0000000000000000
Modules linked in:
Dumping ftrace buffer:
   (ftrace buffer empty)
---[ end trace 47940e96b18a1f7a ]---
RIP: 0010:open_fs_devices+0x7e8/0xc60 fs/btrfs/volumes.c:1124
Code: 48 8b 85 e0 fe ff ff 41 c7 87 14 01 00 00 01 00 00 00 48 8d b8 a0 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 01 04 00 00 48 8b 85 e0 fe ff ff 49 8d 7f 50 48 
RSP: 0018:ffff8801b62af1d8 EFLAGS: 00010206
RAX: dffffc0000000000 RBX: 0000000000000001 RCX: ffffc900036c0000
RDX: 0000000000000014 RSI: ffffffff82c54f0d RDI: 00000000000000a0
RBP: ffff8801b62af348 R08: ffff88018091e400 R09: ffffed003718d670
R10: ffffed003718d670 R11: ffff8801b8c6b383 R12: ffff8801ba2cb698
R13: ffff8801b62af2a0 R14: dffffc0000000000 R15: ffff8801ba2cb5c0
FS:  00007f8a68d09700(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000004bae6a CR3: 00000001c837b000 CR4: 00000000001406f0
DR0: 00000000200001c0 DR1: 00000000200001c0 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600