RBP: 000000000072bea0 R08: 00000000200002c0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000013
R13: 00000000004c248a R14: 00000000004d0058 R15: 0000000000000008
Filesystem sysfs get_tree() didn't set fc->root
------------[ cut here ]------------
kernel BUG at fs/super.c:1753!
invalid opcode: 0000 [#1] SMP KASAN
CPU: 1 PID: 20365 Comm: syz-executor5 Not tainted 4.18.0-rc4-next-20180710+ #3
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:vfs_get_tree.cold.21+0x4f/0x60 fs/super.c:1748
Code: 37 00 48 c1 e0 2a 48 89 da 48 c1 ea 03 80 3c 02 00 74 08 48 89 df e8 40 ef f4 ff 48 8b 33 48 c7 c7 20 5c f3 87 e8 55 23 9d ff <0f> 0b 4c 89 ef e8 27 ef f4 ff eb c0 90 90 90 90 90 55 48 89 e5 53 
RSP: 0018:ffff880197fd7be0 EFLAGS: 00010286
RAX: 000000000000002f RBX: ffffffff8906e7c0 RCX: ffffc90005849000
RDX: 0000000000000000 RSI: ffffffff81634451 RDI: ffff880197fd78f0
RBP: ffff880197fd7c10 R08: ffff880192f8a100 R09: fffffbfff11f1260
R10: fffffbfff11f1260 R11: ffffffff88f89303 R12: 0000000000000000
R13: ffff8801ae5a9d88 R14: 0000000000000020 R15: ffff8801ae5a9d98
FS:  00007fc27bf80700(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000004e8664 CR3: 00000001c9bf3000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 do_new_mount fs/namespace.c:2567 [inline]
 do_mount+0x6c1/0x1fb0 fs/namespace.c:2889
 ksys_mount+0x12d/0x140 fs/namespace.c:3105
 __do_sys_mount fs/namespace.c:3119 [inline]
 __se_sys_mount fs/namespace.c:3116 [inline]
 __x64_sys_mount+0xbe/0x150 fs/namespace.c:3116
 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x455e29
Code: 1d ba fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 eb b9 fb ff c3 66 2e 0f 1f 84 00 00 00 00 
RSP: 002b:00007fc27bf7fc68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007fc27bf806d4 RCX: 0000000000455e29
RDX: 0000000020000200 RSI: 00000000200000c0 RDI: 0000000020000240
RBP: 000000000072bea0 R08: 00000000200002c0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000013
R13: 00000000004c248a R14: 00000000004d0058 R15: 0000000000000008
Modules linked in:
Dumping ftrace buffer:
   (ftrace buffer empty)
---[ end trace 2dc613f3f320adb1 ]---
RIP: 0010:vfs_get_tree.cold.21+0x4f/0x60 fs/super.c:1748
Code: 37 00 48 c1 e0 2a 48 89 da 48 c1 ea 03 80 3c 02 00 74 08 48 89 df e8 40 ef f4 ff 48 8b 33 48 c7 c7 20 5c f3 87 e8 55 23 9d ff <0f> 0b 4c 89 ef e8 27 ef f4 ff eb c0 90 90 90 90 90 55 48 89 e5 53 
RSP: 0018:ffff880197fd7be0 EFLAGS: 00010286
RAX: 000000000000002f RBX: ffffffff8906e7c0 RCX: ffffc90005849000
RDX: 0000000000000000 RSI: ffffffff81634451 RDI: ffff880197fd78f0
RBP: ffff880197fd7c10 R08: ffff880192f8a100 R09: fffffbfff11f1260
R10: fffffbfff11f1260 R11: ffffffff88f89303 R12: 0000000000000000
R13: ffff8801ae5a9d88 R14: 0000000000000020 R15: ffff8801ae5a9d98
FS:  00007fc27bf80700(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000004e8664 CR3: 00000001c9bf3000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400