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-7,10.128.15.208' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   40.631228] kvm: KVM_SET_TSS_ADDR need to be called before entering vcpu
[   40.633732] usercopy: kernel memory overwrite attempt detected to ffff8801d21c9bd4 (kvm_vcpu) (1320 bytes)
[   40.635122] ------------[ cut here ]------------
[   40.635789] kernel BUG at mm/usercopy.c:84!
[   40.636410] invalid opcode: 0000 [#1] SMP KASAN
[   40.637064] Dumping ftrace buffer:
[   40.637536]    (ftrace buffer empty)
[   40.638031] Modules linked in:
[   40.638464] CPU: 1 PID: 2988 Comm: syzkaller562838 Not tainted 4.14.0-rc5-next-20171018+ #36
[   40.639581] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   40.640797] task: ffff8801d1da0100 task.stack: ffff8801d1c30000
[   40.641600] RIP: 0010:__check_object_size+0x3a2/0x4f0
[   40.642282] RSP: 0018:ffff8801d1c37148 EFLAGS: 00010286
[   40.643018] RAX: 000000000000005e RBX: ffffffff8511a0e0 RCX: 0000000000000000
[   40.643992] RDX: 000000000000005e RSI: 1ffff1003a386de9 RDI: ffffed003a386e1d
[   40.644993] RBP: ffff8801d1c37238 R08: 0000000000000001 R09: 0000000000000000
[   40.646013] R10: 0000000000000001 R11: 0000000000000000 R12: ffffffff8511a0a0
[   40.646964] R13: ffff8801d21c9bd4 R14: 0000000000000528 R15: ffffea0007487200
[   40.647943] FS:  0000000000964880(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000
[   40.649044] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   40.649817] CR2: 0000000020ae6fe8 CR3: 00000001d2184000 CR4: 00000000001426e0
[   40.650833] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   40.654765] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   40.661999] Call Trace:
[   40.664553]  ? lock_release+0xa40/0xa40
[   40.668494]  ? check_stack_object+0x140/0x140
[   40.672954]  ? check_noncircular+0x20/0x20
[   40.677155]  ? __might_sleep+0x95/0x190
[   40.681102]  kvm_vcpu_ioctl_set_cpuid2+0x75/0x1a0
[   40.685916]  kvm_arch_vcpu_ioctl+0x1718/0x4710
[   40.690463]  ? find_held_lock+0x35/0x1d0
[   40.694490]  ? kvm_arch_vcpu_put+0x3e0/0x3e0
[   40.698863]  ? depot_save_stack+0x3b5/0x490
[   40.703150]  ? lock_downgrade+0x990/0x990
[   40.707265]  ? do_raw_spin_trylock+0x190/0x190
[   40.711812]  ? is_bpf_text_address+0xa4/0x120
[   40.716271]  ? kernel_text_address+0x102/0x140
[   40.720819]  ? __kernel_text_address+0xd/0x40
[   40.725279]  ? unwind_get_return_address+0x61/0xa0
[   40.730173]  ? trace_hardirqs_off+0xd/0x10
[   40.734377]  ? _raw_spin_unlock_irqrestore+0xa6/0xba
[   40.739445]  ? depot_save_stack+0x3b5/0x490
[   40.743734]  ? __vunmap+0x247/0x2e0
[   40.747327]  ? save_stack+0xa3/0xd0
[   40.750923]  ? lock_acquire+0x1d5/0x580
[   40.754860]  ? lock_acquire+0x1d5/0x580
[   40.758797]  ? vcpu_load+0x1c/0x70
[   40.762303]  ? lock_release+0xa40/0xa40
[   40.766242]  ? trace_event_raw_event_sched_switch+0x8a0/0x8a0
[   40.772106]  ? rcu_note_context_switch+0x710/0x710
[   40.777001]  ? __might_sleep+0x95/0x190
[   40.780939]  ? vcpu_load+0x1c/0x70
[   40.784445]  ? __mutex_lock+0x16f/0x19d0
[   40.788470]  ? vcpu_load+0x1c/0x70
[   40.791975]  ? vcpu_load+0x1c/0x70
[   40.795482]  ? trace_hardirqs_off+0xd/0x10
[   40.799682]  ? mutex_lock_io_nested+0x1880/0x1880
[   40.804491]  ? find_held_lock+0x35/0x1d0
[   40.808520]  ? __might_fault+0x110/0x1d0
[   40.812544]  ? lock_downgrade+0x990/0x990
[   40.816659]  ? vmx_vcpu_load+0x9c6/0xdd0
[   40.820687]  ? handle_invept+0x5f0/0x5f0
[   40.824714]  ? __might_sleep+0x95/0x190
[   40.828654]  ? kasan_check_read+0x11/0x20
[   40.832765]  ? _copy_to_user+0xa2/0xc0
[   40.836624]  ? kvm_arch_dev_ioctl+0xc7/0x3b0
[   40.840997]  ? kvm_vm_ioctl_check_extension+0x510/0x510
[   40.846330]  ? kvm_arch_vcpu_load+0x1c1/0x890
[   40.850802]  ? kvm_arch_vcpu_load+0x4b1/0x890
[   40.855263]  ? find_held_lock+0x35/0x1d0
[   40.859288]  ? kvm_arch_dev_ioctl+0x3b0/0x3b0
[   40.863749]  ? __hrtick_start+0x1d0/0x1d0
[   40.867863]  ? avc_has_extended_perms+0x6e5/0x12c0
[   40.872759]  ? vcpu_load+0x4b/0x70
[   40.876264]  kvm_vcpu_ioctl+0x240/0x1010
[   40.880293]  ? __kvm_gfn_to_hva_cache_init+0xbb0/0xbb0
[   40.885534]  ? is_bpf_text_address+0xa4/0x120
[   40.889993]  ? avc_has_extended_perms+0x7fa/0x12c0
[   40.894888]  ? unwind_get_return_address+0x6e/0xa0
[   40.899788]  ? avc_ss_reset+0x110/0x110
[   40.903728]  ? putname+0xee/0x130
[   40.907145]  ? save_stack+0xa3/0xd0
[   40.910737]  ? save_stack+0x43/0xd0
[   40.914327]  ? kasan_slab_free+0x71/0xc0
[   40.918350]  ? kmem_cache_free+0x77/0x280
[   40.922460]  ? putname+0xee/0x130
[   40.925875]  ? do_sys_open+0x31b/0x6d0
[   40.929729]  ? __lock_is_held+0xb6/0x140
[   40.933762]  ? trace_event_raw_event_sched_switch+0x8a0/0x8a0
[   40.939613]  ? rcu_note_context_switch+0x710/0x710
[   40.944504]  ? get_unused_fd_flags+0x190/0x190
[   40.949053]  ? __kvm_gfn_to_hva_cache_init+0xbb0/0xbb0
[   40.954292]  do_vfs_ioctl+0x1b1/0x1520
[   40.958160]  ? _cond_resched+0x14/0x30
[   40.962014]  ? ioctl_preallocate+0x2b0/0x2b0
[   40.966408]  ? selinux_capable+0x40/0x40
[   40.970435]  ? putname+0xf3/0x130
[   40.973867]  ? do_sys_open+0x320/0x6d0
[   40.977727]  ? security_file_ioctl+0x89/0xb0
[   40.982110]  SyS_ioctl+0x8f/0xc0
[   40.985452]  entry_SYSCALL_64_fastpath+0x1f/0xbe
[   40.990171] RIP: 0033:0x442f27
[   40.993328] RSP: 002b:00007ffc7f9721b8 EFLAGS: 00000217 ORIG_RAX: 0000000000000010
[   41.000999] RAX: ffffffffffffffda RBX: 00007ffc7f972890 RCX: 0000000000442f27
[   41.008232] RDX: 00007ffc7f972890 RSI: 000000004008ae90 RDI: 0000000000000005
[   41.015466] RBP: 0000000000000082 R08: 0000000000000001 R09: ffffffffffffffff
[   41.022698] R10: 0000000000000000 R11: 0000000000000217 R12: 0000000000404040
[   41.029931] R13: 00000000004040d0 R14: 0000000000000000 R15: 0000000000000000
[   41.037177] 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 
[   41.056240] RIP: __check_object_size+0x3a2/0x4f0 RSP: ffff8801d1c37148
[   41.062933] ---[ end trace d80029d430f95081 ]---
[   41.067840] Kernel panic - not syncing: Fatal exception
[   41.073527] Dumping ftrace buffer:
[   41.077036]    (ftrace buffer empty)
[   41.080716] Kernel Offset: disabled
[   41.084310] Rebooting in 86400 seconds..