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-mmots-kasan-gce-2,10.128.15.234' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   40.156221] kvm: KVM_SET_TSS_ADDR need to be called before entering vcpu
[   40.162473] usercopy: kernel memory overwrite attempt detected to ffff8801d1cb1bd4 (kvm_vcpu) (1320 bytes)
[   40.163902] ------------[ cut here ]------------
[   40.164569] kernel BUG at mm/usercopy.c:84!
[   40.165225] invalid opcode: 0000 [#1] SMP KASAN
[   40.165909] Dumping ftrace buffer:
[   40.166385]    (ftrace buffer empty)
[   40.166922] Modules linked in:
[   40.167371] CPU: 1 PID: 2989 Comm: syzkaller576238 Not tainted 4.14.0-rc5-mm1+ #20
[   40.168391] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   40.169611] task: ffff8801d1d86080 task.stack: ffff8801d2338000
[   40.170416] RIP: 0010:__check_object_size+0x3a2/0x4f0
[   40.171101] RSP: 0018:ffff8801d233f148 EFLAGS: 00010286
[   40.171810] RAX: 000000000000005e RBX: ffffffff8511a100 RCX: 0000000000000000
[   40.172814] RDX: 000000000000005e RSI: 1ffff1003a467de9 RDI: ffffed003a467e1d
[   40.173798] RBP: ffff8801d233f238 R08: 0000000000000001 R09: 0000000000000000
[   40.174762] R10: 0000000000000001 R11: 0000000000000000 R12: ffffffff8511a0c0
[   40.175725] R13: ffff8801d1cb1bd4 R14: 0000000000000528 R15: ffffea0007472c00
[   40.178894] FS:  0000000000c39880(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000
[   40.187086] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   40.192935] CR2: 00007ffde960c980 CR3: 00000001d42cc000 CR4: 00000000001426e0
[   40.200175] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   40.207414] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   40.214652] Call Trace:
[   40.217220]  ? lock_release+0xa40/0xa40
[   40.221164]  ? check_stack_object+0x140/0x140
[   40.225630]  ? check_noncircular+0x20/0x20
[   40.229837]  ? __might_sleep+0x95/0x190
[   40.233971]  kvm_vcpu_ioctl_set_cpuid2+0x75/0x1a0
[   40.238799]  kvm_arch_vcpu_ioctl+0x1718/0x4710
[   40.243352]  ? find_held_lock+0x35/0x1d0
[   40.247385]  ? kvm_arch_vcpu_put+0x3e0/0x3e0
[   40.251765]  ? depot_save_stack+0x3b5/0x490
[   40.256055]  ? lock_downgrade+0x990/0x990
[   40.260172]  ? do_raw_spin_trylock+0x190/0x190
[   40.264725]  ? is_bpf_text_address+0xa4/0x120
[   40.269190]  ? kernel_text_address+0x102/0x140
[   40.273743]  ? __kernel_text_address+0xd/0x40
[   40.278224]  ? unwind_get_return_address+0x61/0xa0
[   40.283129]  ? trace_hardirqs_off+0xd/0x10
[   40.287349]  ? _raw_spin_unlock_irqrestore+0xa6/0xba
[   40.292447]  ? depot_save_stack+0x3b5/0x490
[   40.296767]  ? __vunmap+0x247/0x2e0
[   40.300366]  ? save_stack+0xa3/0xd0
[   40.303981]  ? lock_acquire+0x1d5/0x580
[   40.307923]  ? lock_acquire+0x1d5/0x580
[   40.311867]  ? vcpu_load+0x1c/0x70
[   40.315396]  ? lock_release+0xa40/0xa40
[   40.319344]  ? trace_event_raw_event_sched_switch+0x8a0/0x8a0
[   40.325201]  ? rcu_note_context_switch+0x710/0x710
[   40.330103]  ? __might_sleep+0x95/0x190
[   40.334045]  ? vcpu_load+0x1c/0x70
[   40.337567]  ? __mutex_lock+0x16f/0x19d0
[   40.341596]  ? vcpu_load+0x1c/0x70
[   40.345106]  ? vcpu_load+0x1c/0x70
[   40.348616]  ? trace_hardirqs_off+0xd/0x10
[   40.352820]  ? mutex_lock_io_nested+0x1880/0x1880
[   40.357637]  ? find_held_lock+0x35/0x1d0
[   40.361700]  ? __might_fault+0x110/0x1d0
[   40.365733]  ? lock_downgrade+0x990/0x990
[   40.369848]  ? vmx_vcpu_load+0x9c6/0xdd0
[   40.373882]  ? handle_invept+0x5f0/0x5f0
[   40.377929]  ? __might_sleep+0x95/0x190
[   40.381875]  ? kasan_check_read+0x11/0x20
[   40.385994]  ? _copy_to_user+0xa2/0xc0
[   40.389852]  ? kvm_arch_dev_ioctl+0xc7/0x3b0
[   40.394230]  ? kvm_vm_ioctl_check_extension+0x510/0x510
[   40.399564]  ? kvm_arch_vcpu_load+0x1c1/0x890
[   40.404027]  ? kvm_arch_vcpu_load+0x4b1/0x890
[   40.408489]  ? find_held_lock+0x35/0x1d0
[   40.412516]  ? kvm_arch_dev_ioctl+0x3b0/0x3b0
[   40.416979]  ? __hrtick_start+0x1d0/0x1d0
[   40.421096]  ? avc_has_extended_perms+0x6e5/0x12c0
[   40.425998]  ? vcpu_load+0x4b/0x70
[   40.429509]  kvm_vcpu_ioctl+0x240/0x1010
[   40.433558]  ? __kvm_gfn_to_hva_cache_init+0xbb0/0xbb0
[   40.438805]  ? is_bpf_text_address+0xa4/0x120
[   40.443281]  ? avc_has_extended_perms+0x7fa/0x12c0
[   40.448182]  ? unwind_get_return_address+0x6e/0xa0
[   40.453085]  ? avc_ss_reset+0x110/0x110
[   40.457033]  ? putname+0xee/0x130
[   40.460458]  ? save_stack+0xa3/0xd0
[   40.464053]  ? save_stack+0x43/0xd0
[   40.467647]  ? kasan_slab_free+0x71/0xc0
[   40.471695]  ? kmem_cache_free+0x77/0x280
[   40.475810]  ? putname+0xee/0x130
[   40.479230]  ? do_sys_open+0x31b/0x6d0
[   40.483089]  ? __lock_is_held+0xb6/0x140
[   40.487128]  ? trace_event_raw_event_sched_switch+0x8a0/0x8a0
[   40.492986]  ? rcu_note_context_switch+0x710/0x710
[   40.497882]  ? get_unused_fd_flags+0x190/0x190
[   40.502443]  ? __kvm_gfn_to_hva_cache_init+0xbb0/0xbb0
[   40.507691]  do_vfs_ioctl+0x1b1/0x1520
[   40.511550]  ? _cond_resched+0x14/0x30
[   40.515424]  ? ioctl_preallocate+0x2b0/0x2b0
[   40.519809]  ? selinux_capable+0x40/0x40
[   40.523843]  ? putname+0xf3/0x130
[   40.527283]  ? do_sys_open+0x320/0x6d0
[   40.531151]  ? security_file_ioctl+0x89/0xb0
[   40.535540]  SyS_ioctl+0x8f/0xc0
[   40.538882]  entry_SYSCALL_64_fastpath+0x1f/0xbe
[   40.543609] RIP: 0033:0x442fa7
[   40.546774] RSP: 002b:00007ffde960c978 EFLAGS: 00000217 ORIG_RAX: 0000000000000010
[   40.554451] RAX: ffffffffffffffda RBX: 00007ffde960d050 RCX: 0000000000442fa7
[   40.561693] RDX: 00007ffde960d050 RSI: 000000004008ae90 RDI: 0000000000000005
[   40.568935] RBP: 0000000000000082 R08: 0000000000000001 R09: fffffffffffffffe
[   40.576291] R10: 0000000000000000 R11: 0000000000000217 R12: 00000000004040c0
[   40.583534] R13: 0000000000404150 R14: 0000000000000004 R15: 0000000000000000
[   40.590791] Code: 48 0f 44 da e8 e0 d7 c3 ff 48 8b 85 28 ff ff ff 4d 89 f1 4c 89 e9 4c 89 e2 48 89 de 48 c7 c7 c0 a1 11 85 49 89 c0 e8 33 e3 ad ff <0f> 0b 48 c7 c0 80 9f 11 85 eb 96 48 c7 c0 c0 9f 11 85 eb 8d 48 
[   40.609873] RIP: __check_object_size+0x3a2/0x4f0 RSP: ffff8801d233f148
[   40.616569] ---[ end trace 229dbb169a1e5634 ]---
[   40.621325] Kernel panic - not syncing: Fatal exception
[   40.627013] Dumping ftrace buffer:
[   40.630531]    (ftrace buffer empty)
[   40.634213] Kernel Offset: disabled
[   40.637813] Rebooting in 86400 seconds..