INIT: Entering runlevel: 2

[info] Using makefile-style concurrent boot in runlevel 2.
[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c.
[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c.
[....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c.

Debian GNU/Linux 7 syzkaller ttyS0

Warning: Permanently added 'ci-upstream-next-kasan-gce-1,10.128.0.38' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   40.625736] kvm: KVM_SET_TSS_ADDR need to be called before entering vcpu
[   40.632240] usercopy: kernel memory overwrite attempt detected to ffff8801d2429bd4 (kvm_vcpu) (1320 bytes)
[   40.633627] ------------[ cut here ]------------
[   40.634284] kernel BUG at mm/usercopy.c:84!
[   40.634865] invalid opcode: 0000 [#1] SMP KASAN
[   40.635486] Dumping ftrace buffer:
[   40.635960]    (ftrace buffer empty)
[   40.636456] Modules linked in:
[   40.636891] CPU: 0 PID: 2993 Comm: syzkaller686766 Not tainted 4.14.0-rc5-next-20171018+ #36
[   40.638008] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   40.639226] task: ffff8801d274c200 task.stack: ffff8801d2270000
[   40.640029] RIP: 0010:__check_object_size+0x3a2/0x4f0
[   40.640713] RSP: 0018:ffff8801d2277148 EFLAGS: 00010286
[   40.641423] RAX: 000000000000005e RBX: ffffffff8511a0e0 RCX: 0000000000000000
[   40.642374] RDX: 000000000000005e RSI: 1ffff1003a44ede9 RDI: ffffed003a44ee1d
[   40.643323] RBP: ffff8801d2277238 R08: 0000000000000001 R09: 0000000000000000
[   40.644272] R10: 0000000000000001 R11: 0000000000000000 R12: ffffffff8511a0a0
[   40.645222] R13: ffff8801d2429bd4 R14: 0000000000000528 R15: ffffea0007490a00
[   40.648321] FS:  0000000001ebc880(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000
[   40.656510] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   40.662356] CR2: 0000000020b70000 CR3: 00000001d0cd0000 CR4: 00000000001426f0
[   40.669591] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   40.676825] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   40.684057] Call Trace:
[   40.686610]  ? lock_release+0xa40/0xa40
[   40.690550]  ? check_stack_object+0x140/0x140
[   40.695011]  ? check_noncircular+0x20/0x20
[   40.699211]  ? __might_sleep+0x95/0x190
[   40.703155]  kvm_vcpu_ioctl_set_cpuid2+0x75/0x1a0
[   40.707964]  kvm_arch_vcpu_ioctl+0x1718/0x4710
[   40.712510]  ? find_held_lock+0x35/0x1d0
[   40.716537]  ? kvm_arch_vcpu_put+0x3e0/0x3e0
[   40.720915]  ? depot_save_stack+0x3b5/0x490
[   40.725202]  ? lock_downgrade+0x990/0x990
[   40.729315]  ? do_raw_spin_trylock+0x190/0x190
[   40.733861]  ? is_bpf_text_address+0xa4/0x120
[   40.738320]  ? kernel_text_address+0x102/0x140
[   40.742870]  ? __kernel_text_address+0xd/0x40
[   40.747330]  ? unwind_get_return_address+0x61/0xa0
[   40.752224]  ? trace_hardirqs_off+0xd/0x10
[   40.756426]  ? _raw_spin_unlock_irqrestore+0xa6/0xba
[   40.761495]  ? depot_save_stack+0x3b5/0x490
[   40.765781]  ? __vunmap+0x247/0x2e0
[   40.769372]  ? save_stack+0xa3/0xd0
[   40.772964]  ? lock_acquire+0x1d5/0x580
[   40.776899]  ? lock_acquire+0x1d5/0x580
[   40.780836]  ? vcpu_load+0x1c/0x70
[   40.784341]  ? lock_release+0xa40/0xa40
[   40.788281]  ? trace_event_raw_event_sched_switch+0x8a0/0x8a0
[   40.794134]  ? rcu_note_context_switch+0x710/0x710
[   40.799030]  ? __might_sleep+0x95/0x190
[   40.802970]  ? vcpu_load+0x1c/0x70
[   40.806474]  ? __mutex_lock+0x16f/0x19d0
[   40.810494]  ? vcpu_load+0x1c/0x70
[   40.814000]  ? vcpu_load+0x1c/0x70
[   40.817507]  ? trace_hardirqs_off+0xd/0x10
[   40.821708]  ? mutex_lock_io_nested+0x1880/0x1880
[   40.826604]  ? find_held_lock+0x35/0x1d0
[   40.830633]  ? __might_fault+0x110/0x1d0
[   40.834658]  ? lock_downgrade+0x990/0x990
[   40.838771]  ? vmx_vcpu_load+0x9c6/0xdd0
[   40.842799]  ? handle_invept+0x5f0/0x5f0
[   40.846826]  ? __might_sleep+0x95/0x190
[   40.850770]  ? kasan_check_read+0x11/0x20
[   40.854884]  ? _copy_to_user+0xa2/0xc0
[   40.858741]  ? kvm_arch_dev_ioctl+0xc7/0x3b0
[   40.863115]  ? kvm_vm_ioctl_check_extension+0x510/0x510
[   40.868445]  ? kvm_arch_vcpu_load+0x1c1/0x890
[   40.872904]  ? kvm_arch_vcpu_load+0x4b1/0x890
[   40.877362]  ? find_held_lock+0x35/0x1d0
[   40.881387]  ? kvm_arch_dev_ioctl+0x3b0/0x3b0
[   40.885846]  ? __hrtick_start+0x1d0/0x1d0
[   40.889960]  ? avc_has_extended_perms+0x6e5/0x12c0
[   40.894856]  ? vcpu_load+0x4b/0x70
[   40.898366]  kvm_vcpu_ioctl+0x240/0x1010
[   40.902393]  ? __kvm_gfn_to_hva_cache_init+0xbb0/0xbb0
[   40.907637]  ? is_bpf_text_address+0xa4/0x120
[   40.912107]  ? avc_has_extended_perms+0x7fa/0x12c0
[   40.917005]  ? unwind_get_return_address+0x6e/0xa0
[   40.921904]  ? avc_ss_reset+0x110/0x110
[   40.925843]  ? putname+0xee/0x130
[   40.929263]  ? save_stack+0xa3/0xd0
[   40.932852]  ? save_stack+0x43/0xd0
[   40.936444]  ? kasan_slab_free+0x71/0xc0
[   40.940470]  ? kmem_cache_free+0x77/0x280
[   40.944581]  ? putname+0xee/0x130
[   40.948026]  ? do_sys_open+0x31b/0x6d0
[   40.951883]  ? __lock_is_held+0xb6/0x140
[   40.955919]  ? trace_event_raw_event_sched_switch+0x8a0/0x8a0
[   40.961770]  ? rcu_note_context_switch+0x710/0x710
[   40.966665]  ? get_unused_fd_flags+0x190/0x190
[   40.971219]  ? __kvm_gfn_to_hva_cache_init+0xbb0/0xbb0
[   40.976459]  do_vfs_ioctl+0x1b1/0x1520
[   40.980312]  ? _cond_resched+0x14/0x30
[   40.984168]  ? ioctl_preallocate+0x2b0/0x2b0
[   40.988543]  ? selinux_capable+0x40/0x40
[   40.992569]  ? putname+0xf3/0x130
[   40.995987]  ? do_sys_open+0x320/0x6d0
[   40.999847]  ? security_file_ioctl+0x89/0xb0
[   41.004221]  SyS_ioctl+0x8f/0xc0
[   41.007555]  entry_SYSCALL_64_fastpath+0x1f/0xbe
[   41.012274] RIP: 0033:0x442f77
[   41.015428] RSP: 002b:00007fff41831558 EFLAGS: 00000217 ORIG_RAX: 0000000000000010
[   41.023103] RAX: ffffffffffffffda RBX: 00007fff41831c30 RCX: 0000000000442f77
[   41.030339] RDX: 00007fff41831c30 RSI: 000000004008ae90 RDI: 0000000000000005
[   41.037576] RBP: 0000000000000082 R08: 0000000000000001 R09: 0000000000000014
[   41.044812] R10: 0000000000000000 R11: 0000000000000217 R12: 0000000000404090
[   41.052048] R13: 0000000000404120 R14: 0000000000000000 R15: 0000000000000000
[   41.059293] Code: 48 0f 44 da e8 70 f0 c3 ff 48 8b 85 28 ff ff ff 4d 89 f1 4c 89 e9 4c 89 e2 48 89 de 48 c7 c7 a0 a1 11 85 49 89 c0 e8 c3 fb ad ff <0f> 0b 48 c7 c0 60 9f 11 85 eb 96 48 c7 c0 a0 9f 11 85 eb 8d 48 
[   41.078359] RIP: __check_object_size+0x3a2/0x4f0 RSP: ffff8801d2277148
[   41.085180] ---[ end trace ac889a59df351bc0 ]---
[   41.090109] Kernel panic - not syncing: Fatal exception
[   41.095899] Dumping ftrace buffer:
[   41.099405]    (ftrace buffer empty)
[   41.103082] Kernel Offset: disabled
[   41.106676] Rebooting in 86400 seconds..