kvm: KVM_SET_TSS_ADDR need to be called before entering vcpu
BUG: unable to handle kernel paging request at 0000000089fdc2d6
IP: lock_acquire+0x183/0x580 kernel/locking/lockdep.c:4002
PGD 5e28067 P4D 5e28067 PUD 5e2a067 PMD 0 
Oops: 0002 [#1] SMP KASAN
Dumping ftrace buffer:
   (ftrace buffer empty)
Modules linked in:
CPU: 0 PID: 3123 Comm: syz-executor1 Not tainted 4.15.0-rc1-next-20171201+ #57
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: 0000000052cdfd80 task.stack: 00000000cfd9c12e
RIP: 0010:lock_acquire+0x183/0x580 kernel/locking/lockdep.c:4002
RSP: 0018:ffff88019947e928 EFLAGS: 00010046
RAX: 0000000000000007 RBX: 0000000000000000 RCX: 0000000000000000
RDX: ffff8801ca89a100 RSI: 0000000000000000 RDI: ffff8801ca89a984
RBP: ffff88019947ea20 R08: 0000000000000000 R09: 0000000000000000
R10: 1ffff1003328fd2b R11: ffffed003328fd7c R12: 1ffff1003328fd2b
R13: 0000000000000000 R14: 0000000000000002 R15: 0000000000000000
FS:  000000000224d940(0000) GS:ffff8801db400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: fffffffffffffff8 CR3: 00000001994e9000 CR4: 00000000001426f0
Call Trace:
 rcu_lock_acquire include/linux/rcupdate.h:244 [inline]
 rcu_read_lock include/linux/rcupdate.h:630 [inline]
 __is_insn_slot_addr+0xb4/0x330 kernel/kprobes.c:293
 is_kprobe_optinsn_slot include/linux/kprobes.h:344 [inline]
 kernel_text_address+0x11b/0x140 kernel/extable.c:150
 __kernel_text_address+0xd/0x40 kernel/extable.c:107
 unwind_get_return_address+0x61/0xa0 arch/x86/kernel/unwind_frame.c:18
 __save_stack_trace+0x7e/0xd0 arch/x86/kernel/stacktrace.c:45
 save_stack_trace+0x1a/0x20 arch/x86/kernel/stacktrace.c:60
 save_stack+0x43/0xd0 mm/kasan/kasan.c:447
 set_track mm/kasan/kasan.c:459 [inline]
 kasan_kmalloc+0xad/0xe0 mm/kasan/kasan.c:551
 kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:489
 slab_post_alloc_hook mm/slab.h:446 [inline]
 slab_alloc mm/slab.c:3386 [inline]
 __do_kmalloc mm/slab.c:3710 [inline]
 __kmalloc+0x14b/0x760 mm/slab.c:3721
 kmalloc include/linux/slab.h:521 [inline]
 kzalloc include/linux/slab.h:705 [inline]
 ops_init+0x172/0x570 net/core/net_namespace.c:108
 setup_net+0x319/0x720 net/core/net_namespace.c:295
 copy_net_ns+0x27c/0x580 net/core/net_namespace.c:419
 create_new_namespaces+0x425/0x880 kernel/nsproxy.c:107
 copy_namespaces+0x340/0x400 kernel/nsproxy.c:165
 copy_process.part.35+0x2364/0x4b30 kernel/fork.c:1805
 copy_process kernel/fork.c:1615 [inline]
 _do_fork+0x1ef/0xf10 kernel/fork.c:2096
 SYSC_clone kernel/fork.c:2203 [inline]
 SyS_clone+0x37/0x50 kernel/fork.c:2197
 do_syscall_64+0x26c/0x920 arch/x86/entry/common.c:285
 entry_SYSCALL64_slow_path+0x25/0x25
RIP: 0033:0x455369
RSP: 002b:00007fff88c25008 EFLAGS: 00000202 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 00007fff88c250c0 RCX: 0000000000455369
RDX: 0000000000000000 RSI: 0000000000a6ffb0 RDI: 0000000074000000
RBP: 0000000000000000 R08: 0000000000000017 R09: 0000000000000017
R10: 0000000000000000 R11: 0000000000000202 R12: 000000000040e8d0
R13: 000000000040e960 R14: 0000000000000000 R15: 0000000000000000
Code: df 48 89 f9 48 c1 e9 03 0f b6 0c 01 48 89 f8 83 e0 07 83 c0 03 38 c8 7c 08 84 c9 0f 85 fe 02 00 00 c7 82 84 08 00 00 01 00 00 00 <cc> 1f 44 00 00 65 8b 05 b1 c9 aa 7e 89 c0 48 0f a3 05 37 5f 08 
RIP: lock_acquire+0x183/0x580 kernel/locking/lockdep.c:4002 RSP: ffff88019947e928
CR2: fffffffffffffff8
---[ end trace 784a0293e7ce438e ]---