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-6,10.128.0.6' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   41.609791] kvm: KVM_SET_TSS_ADDR need to be called before entering vcpu
[   41.616897] usercopy: kernel memory overwrite attempt detected to ffff8801c0de9bd4 (kvm_vcpu) (1320 bytes)
[   41.618303] ------------[ cut here ]------------
[   41.618968] kernel BUG at mm/usercopy.c:84!
[   41.619598] invalid opcode: 0000 [#1] SMP KASAN
[   41.620243] Dumping ftrace buffer:
[   41.620722]    (ftrace buffer empty)
[   41.621234] Modules linked in:
[   41.621674] CPU: 0 PID: 2989 Comm: syzkaller467855 Not tainted 4.14.0-rc5-mm1+ #20
[   41.622686] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   41.623924] task: ffff8801d1d087c0 task.stack: ffff8801d2258000
[   41.624742] RIP: 0010:__check_object_size+0x3a2/0x4f0
[   41.625448] RSP: 0018:ffff8801d225f148 EFLAGS: 00010286
[   41.626172] RAX: 000000000000005e RBX: ffffffff8511a100 RCX: 0000000000000000
[   41.627127] RDX: 000000000000005e RSI: 1ffff1003a44bde9 RDI: ffffed003a44be1d
[   41.628082] RBP: ffff8801d225f238 R08: 0000000000000001 R09: 0000000000000000
[   41.629068] R10: 0000000000000001 R11: 0000000000000000 R12: ffffffff8511a0c0
[   41.630883] R13: ffff8801c0de9bd4 R14: 0000000000000528 R15: ffffea0007037a00
[   41.638121] FS:  0000000001ff6880(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000
[   41.646316] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   41.652161] CR2: 00007fff4ed4b790 CR3: 00000001ced3d000 CR4: 00000000001426f0
[   41.659400] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   41.666635] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   41.673871] Call Trace:
[   41.676428]  ? lock_release+0xa40/0xa40
[   41.680370]  ? check_stack_object+0x140/0x140
[   41.684833]  ? check_noncircular+0x20/0x20
[   41.689035]  ? __might_sleep+0x95/0x190
[   41.692980]  kvm_vcpu_ioctl_set_cpuid2+0x75/0x1a0
[   41.697792]  kvm_arch_vcpu_ioctl+0x1718/0x4710
[   41.702340]  ? find_held_lock+0x35/0x1d0
[   41.706368]  ? kvm_arch_vcpu_put+0x3e0/0x3e0
[   41.710743]  ? depot_save_stack+0x3b5/0x490
[   41.715029]  ? lock_downgrade+0x990/0x990
[   41.719144]  ? do_raw_spin_trylock+0x190/0x190
[   41.723693]  ? is_bpf_text_address+0xa4/0x120
[   41.728154]  ? kernel_text_address+0x102/0x140
[   41.732701]  ? __kernel_text_address+0xd/0x40
[   41.737163]  ? unwind_get_return_address+0x61/0xa0
[   41.742059]  ? trace_hardirqs_off+0xd/0x10
[   41.746258]  ? _raw_spin_unlock_irqrestore+0xa6/0xba
[   41.751326]  ? depot_save_stack+0x3b5/0x490
[   41.755615]  ? __vunmap+0x247/0x2e0
[   41.759207]  ? save_stack+0xa3/0xd0
[   41.762800]  ? lock_acquire+0x1d5/0x580
[   41.766738]  ? lock_acquire+0x1d5/0x580
[   41.770677]  ? vcpu_load+0x1c/0x70
[   41.774186]  ? lock_release+0xa40/0xa40
[   41.778124]  ? trace_event_raw_event_sched_switch+0x8a0/0x8a0
[   41.783975]  ? rcu_note_context_switch+0x710/0x710
[   41.788871]  ? __might_sleep+0x95/0x190
[   41.792810]  ? vcpu_load+0x1c/0x70
[   41.796317]  ? __mutex_lock+0x16f/0x19d0
[   41.800343]  ? vcpu_load+0x1c/0x70
[   41.803848]  ? vcpu_load+0x1c/0x70
[   41.807352]  ? trace_hardirqs_off+0xd/0x10
[   41.811553]  ? mutex_lock_io_nested+0x1880/0x1880
[   41.816362]  ? find_held_lock+0x35/0x1d0
[   41.820394]  ? __might_fault+0x110/0x1d0
[   41.824418]  ? lock_downgrade+0x990/0x990
[   41.828534]  ? vmx_vcpu_load+0x9c6/0xdd0
[   41.832563]  ? handle_invept+0x5f0/0x5f0
[   41.836592]  ? __might_sleep+0x95/0x190
[   41.840532]  ? kasan_check_read+0x11/0x20
[   41.844646]  ? _copy_to_user+0xa2/0xc0
[   41.848501]  ? kvm_arch_dev_ioctl+0xc7/0x3b0
[   41.852873]  ? kvm_vm_ioctl_check_extension+0x510/0x510
[   41.858205]  ? kvm_arch_vcpu_load+0x1c1/0x890
[   41.862665]  ? kvm_arch_vcpu_load+0x4b1/0x890
[   41.867124]  ? find_held_lock+0x35/0x1d0
[   41.871149]  ? kvm_arch_dev_ioctl+0x3b0/0x3b0
[   41.875608]  ? __hrtick_start+0x1d0/0x1d0
[   41.879720]  ? avc_has_extended_perms+0x6e5/0x12c0
[   41.884615]  ? vcpu_load+0x4b/0x70
[   41.888123]  kvm_vcpu_ioctl+0x240/0x1010
[   41.892149]  ? __kvm_gfn_to_hva_cache_init+0xbb0/0xbb0
[   41.897391]  ? is_bpf_text_address+0xa4/0x120
[   41.901853]  ? avc_has_extended_perms+0x7fa/0x12c0
[   41.906747]  ? unwind_get_return_address+0x6e/0xa0
[   41.911643]  ? avc_ss_reset+0x110/0x110
[   41.915584]  ? putname+0xee/0x130
[   41.919003]  ? save_stack+0xa3/0xd0
[   41.922595]  ? save_stack+0x43/0xd0
[   41.926186]  ? kasan_slab_free+0x71/0xc0
[   41.930210]  ? kmem_cache_free+0x77/0x280
[   41.934321]  ? putname+0xee/0x130
[   41.937739]  ? do_sys_open+0x31b/0x6d0
[   41.941594]  ? __lock_is_held+0xb6/0x140
[   41.945626]  ? trace_event_raw_event_sched_switch+0x8a0/0x8a0
[   41.951478]  ? rcu_note_context_switch+0x710/0x710
[   41.956370]  ? get_unused_fd_flags+0x190/0x190
[   41.960919]  ? __kvm_gfn_to_hva_cache_init+0xbb0/0xbb0
[   41.966160]  do_vfs_ioctl+0x1b1/0x1520
[   41.970012]  ? _cond_resched+0x14/0x30
[   41.973868]  ? ioctl_preallocate+0x2b0/0x2b0
[   41.978245]  ? selinux_capable+0x40/0x40
[   41.982273]  ? putname+0xf3/0x130
[   41.985695]  ? do_sys_open+0x320/0x6d0
[   41.989552]  ? security_file_ioctl+0x89/0xb0
[   41.993928]  SyS_ioctl+0x8f/0xc0
[   41.997264]  entry_SYSCALL_64_fastpath+0x1f/0xbe
[   42.001990] RIP: 0033:0x442fa7
[   42.005146] RSP: 002b:00007fff4ed4b788 EFLAGS: 00000217 ORIG_RAX: 0000000000000010
[   42.012820] RAX: ffffffffffffffda RBX: 00007fff4ed4be60 RCX: 0000000000442fa7
[   42.020056] RDX: 00007fff4ed4be60 RSI: 000000004008ae90 RDI: 0000000000000005
[   42.027292] RBP: 0000000000000082 R08: 0000000000000001 R09: 0000000000000004
[   42.034527] R10: 0000000000000000 R11: 0000000000000217 R12: 00000000004040c0
[   42.041762] R13: 0000000000404150 R14: 0000000000000004 R15: 0000000000000000
[   42.049006] 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 
[   42.068074] RIP: __check_object_size+0x3a2/0x4f0 RSP: ffff8801d225f148
[   42.074793] ---[ end trace 9d871986b3c80591 ]---
[   42.079718] Kernel panic - not syncing: Fatal exception
[   42.085090] Dumping ftrace buffer:
[   42.088596]    (ftrace buffer empty)
[   42.092275] Kernel Offset: disabled
[   42.095871] Rebooting in 86400 seconds..