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-4,10.128.0.52' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   64.245049] kvm: KVM_SET_TSS_ADDR need to be called before entering vcpu
[   64.251722] usercopy: kernel memory overwrite attempt detected to ffff8801d1c91bd4 (kvm_vcpu) (1320 bytes)
[   64.253261] ------------[ cut here ]------------
[   64.253912] kernel BUG at mm/usercopy.c:84!
[   64.254623] invalid opcode: 0000 [#1] SMP KASAN
[   64.255265] Dumping ftrace buffer:
[   64.255742]    (ftrace buffer empty)
[   64.256242] Modules linked in:
[   64.256693] CPU: 1 PID: 2992 Comm: syzkaller769125 Not tainted 4.14.0-rc5-mm1+ #20
[   64.257717] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   64.258952] task: ffff8801d22504c0 task.stack: ffff8801d27c8000
[   64.259761] RIP: 0010:__check_object_size+0x3a2/0x4f0
[   64.260449] RSP: 0018:ffff8801d27cf148 EFLAGS: 00010286
[   64.261159] RAX: 000000000000005e RBX: ffffffff8511a100 RCX: 0000000000000000
[   64.262112] RDX: 000000000000005e RSI: 1ffff1003a4f9de9 RDI: ffffed003a4f9e1d
[   64.263089] RBP: ffff8801d27cf238 R08: 0000000000000001 R09: 0000000000000000
[   64.264042] R10: 0000000000000001 R11: 0000000000000000 R12: ffffffff8511a0c0
[   64.265028] R13: ffff8801d1c91bd4 R14: 0000000000000528 R15: ffffea0007472400
[   64.271312] FS:  00000000024be880(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000
[   64.279505] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   64.285357] CR2: 0000000020af0000 CR3: 00000001d54e0000 CR4: 00000000001426e0
[   64.292596] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   64.299833] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   64.307069] Call Trace:
[   64.309637]  ? lock_release+0xa40/0xa40
[   64.313580]  ? check_stack_object+0x140/0x140
[   64.318044]  ? check_noncircular+0x20/0x20
[   64.322247]  ? __might_sleep+0x95/0x190
[   64.326192]  kvm_vcpu_ioctl_set_cpuid2+0x75/0x1a0
[   64.331002]  kvm_arch_vcpu_ioctl+0x1718/0x4710
[   64.335550]  ? find_held_lock+0x35/0x1d0
[   64.339583]  ? kvm_arch_vcpu_put+0x3e0/0x3e0
[   64.343961]  ? depot_save_stack+0x3b5/0x490
[   64.348251]  ? lock_downgrade+0x990/0x990
[   64.352368]  ? do_raw_spin_trylock+0x190/0x190
[   64.356927]  ? is_bpf_text_address+0xa4/0x120
[   64.361391]  ? kernel_text_address+0x102/0x140
[   64.365939]  ? __kernel_text_address+0xd/0x40
[   64.370403]  ? unwind_get_return_address+0x61/0xa0
[   64.375299]  ? trace_hardirqs_off+0xd/0x10
[   64.379502]  ? _raw_spin_unlock_irqrestore+0xa6/0xba
[   64.384575]  ? depot_save_stack+0x3b5/0x490
[   64.388866]  ? __vunmap+0x247/0x2e0
[   64.392474]  ? save_stack+0xa3/0xd0
[   64.396069]  ? lock_acquire+0x1d5/0x580
[   64.400007]  ? lock_acquire+0x1d5/0x580
[   64.403969]  ? vcpu_load+0x1c/0x70
[   64.407499]  ? lock_release+0xa40/0xa40
[   64.411446]  ? trace_event_raw_event_sched_switch+0x8a0/0x8a0
[   64.417301]  ? rcu_note_context_switch+0x710/0x710
[   64.422204]  ? __might_sleep+0x95/0x190
[   64.426152]  ? vcpu_load+0x1c/0x70
[   64.429663]  ? __mutex_lock+0x16f/0x19d0
[   64.433688]  ? vcpu_load+0x1c/0x70
[   64.437208]  ? vcpu_load+0x1c/0x70
[   64.440716]  ? trace_hardirqs_off+0xd/0x10
[   64.444915]  ? mutex_lock_io_nested+0x1880/0x1880
[   64.449725]  ? find_held_lock+0x35/0x1d0
[   64.453755]  ? __might_fault+0x110/0x1d0
[   64.457781]  ? lock_downgrade+0x990/0x990
[   64.461894]  ? vmx_vcpu_load+0x9c6/0xdd0
[   64.465922]  ? handle_invept+0x5f0/0x5f0
[   64.469950]  ? __might_sleep+0x95/0x190
[   64.473893]  ? kasan_check_read+0x11/0x20
[   64.478008]  ? _copy_to_user+0xa2/0xc0
[   64.481866]  ? kvm_arch_dev_ioctl+0xc7/0x3b0
[   64.486242]  ? kvm_vm_ioctl_check_extension+0x510/0x510
[   64.491577]  ? kvm_arch_vcpu_load+0x1c1/0x890
[   64.496040]  ? kvm_arch_vcpu_load+0x4b1/0x890
[   64.500501]  ? find_held_lock+0x35/0x1d0
[   64.504527]  ? kvm_arch_dev_ioctl+0x3b0/0x3b0
[   64.508993]  ? __hrtick_start+0x1d0/0x1d0
[   64.513109]  ? avc_has_extended_perms+0x6e5/0x12c0
[   64.518727]  ? vcpu_load+0x4b/0x70
[   64.522236]  kvm_vcpu_ioctl+0x240/0x1010
[   64.526268]  ? __kvm_gfn_to_hva_cache_init+0xbb0/0xbb0
[   64.531513]  ? is_bpf_text_address+0xa4/0x120
[   64.535979]  ? avc_has_extended_perms+0x7fa/0x12c0
[   64.540877]  ? unwind_get_return_address+0x6e/0xa0
[   64.545781]  ? avc_ss_reset+0x110/0x110
[   64.549739]  ? putname+0xee/0x130
[   64.553171]  ? save_stack+0xa3/0xd0
[   64.556762]  ? save_stack+0x43/0xd0
[   64.560353]  ? kasan_slab_free+0x71/0xc0
[   64.564379]  ? kmem_cache_free+0x77/0x280
[   64.568492]  ? putname+0xee/0x130
[   64.571908]  ? do_sys_open+0x31b/0x6d0
[   64.575777]  ? __lock_is_held+0xb6/0x140
[   64.579816]  ? trace_event_raw_event_sched_switch+0x8a0/0x8a0
[   64.585674]  ? rcu_note_context_switch+0x710/0x710
[   64.590570]  ? get_unused_fd_flags+0x190/0x190
[   64.595121]  ? __kvm_gfn_to_hva_cache_init+0xbb0/0xbb0
[   64.600361]  do_vfs_ioctl+0x1b1/0x1520
[   64.604215]  ? _cond_resched+0x14/0x30
[   64.608080]  ? ioctl_preallocate+0x2b0/0x2b0
[   64.612478]  ? selinux_capable+0x40/0x40
[   64.616506]  ? putname+0xf3/0x130
[   64.619926]  ? do_sys_open+0x320/0x6d0
[   64.623797]  ? security_file_ioctl+0x89/0xb0
[   64.628171]  SyS_ioctl+0x8f/0xc0
[   64.631506]  entry_SYSCALL_64_fastpath+0x1f/0xbe
[   64.636225] RIP: 0033:0x442fa7
[   64.639381] RSP: 002b:00007ffc042ef398 EFLAGS: 00000217 ORIG_RAX: 0000000000000010
[   64.647055] RAX: ffffffffffffffda RBX: 00007ffc042efa70 RCX: 0000000000442fa7
[   64.654292] RDX: 00007ffc042efa70 RSI: 000000004008ae90 RDI: 0000000000000005
[   64.661534] RBP: 0000000000000082 R08: 0000000000000001 R09: 0000000000000040
[   64.668770] R10: 0000000000000000 R11: 0000000000000217 R12: 00000000004040c0
[   64.676007] R13: 0000000000404150 R14: 0000000000000000 R15: 0000000000000000
[   64.683250] 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 
[   64.702321] RIP: __check_object_size+0x3a2/0x4f0 RSP: ffff8801d27cf148
[   64.709031] ---[ end trace 0433733c2f725ba3 ]---
[   64.713766] Kernel panic - not syncing: Fatal exception
[   64.719141] Dumping ftrace buffer:
[   64.722663]    (ftrace buffer empty)
[   64.726343] Kernel Offset: disabled
[   64.729936] Rebooting in 86400 seconds..