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-8,10.128.15.197' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   41.373720] kvm: KVM_SET_TSS_ADDR need to be called before entering vcpu
[   41.379500] usercopy: kernel memory overwrite attempt detected to ffff8801d1f61bd4 (kvm_vcpu) (1320 bytes)
[   41.380906] ------------[ cut here ]------------
[   41.381566] kernel BUG at mm/usercopy.c:84!
[   41.382161] invalid opcode: 0000 [#1] SMP KASAN
[   41.382784] Dumping ftrace buffer:
[   41.383275]    (ftrace buffer empty)
[   41.383770] Modules linked in:
[   41.384205] CPU: 0 PID: 2989 Comm: syzkaller208408 Not tainted 4.14.0-rc5-mm1+ #20
[   41.385211] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   41.386431] task: ffff8801d1d40080 task.stack: ffff8801c17c0000
[   41.387259] RIP: 0010:__check_object_size+0x3a2/0x4f0
[   41.387943] RSP: 0018:ffff8801c17c7148 EFLAGS: 00010286
[   41.388652] RAX: 000000000000005e RBX: ffffffff8511a100 RCX: 0000000000000000
[   41.389604] RDX: 000000000000005e RSI: 1ffff100382f8de9 RDI: ffffed00382f8e1d
[   41.390556] RBP: ffff8801c17c7238 R08: 0000000000000001 R09: 0000000000000000
[   41.391507] R10: 0000000000000001 R11: 0000000000000000 R12: ffffffff8511a0c0
[   41.392457] R13: ffff8801d1f61bd4 R14: 0000000000000528 R15: ffffea000747d800
[   41.393410] FS:  0000000001d49880(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000
[   41.398740] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   41.404590] CR2: 00007ffe83574fb0 CR3: 00000001d2e43000 CR4: 00000000001426f0
[   41.411830] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   41.419070] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   41.426307] Call Trace:
[   41.428885]  ? lock_release+0xa40/0xa40
[   41.432831]  ? check_stack_object+0x140/0x140
[   41.437294]  ? check_noncircular+0x20/0x20
[   41.441502]  ? __might_sleep+0x95/0x190
[   41.445450]  kvm_vcpu_ioctl_set_cpuid2+0x75/0x1a0
[   41.450263]  kvm_arch_vcpu_ioctl+0x1718/0x4710
[   41.454814]  ? find_held_lock+0x35/0x1d0
[   41.458845]  ? kvm_arch_vcpu_put+0x3e0/0x3e0
[   41.463221]  ? depot_save_stack+0x3b5/0x490
[   41.467509]  ? lock_downgrade+0x990/0x990
[   41.471625]  ? do_raw_spin_trylock+0x190/0x190
[   41.476175]  ? is_bpf_text_address+0xa4/0x120
[   41.480637]  ? kernel_text_address+0x102/0x140
[   41.485187]  ? __kernel_text_address+0xd/0x40
[   41.489649]  ? unwind_get_return_address+0x61/0xa0
[   41.494546]  ? trace_hardirqs_off+0xd/0x10
[   41.498750]  ? _raw_spin_unlock_irqrestore+0xa6/0xba
[   41.503816]  ? depot_save_stack+0x3b5/0x490
[   41.508107]  ? __vunmap+0x247/0x2e0
[   41.511700]  ? save_stack+0xa3/0xd0
[   41.515294]  ? lock_acquire+0x1d5/0x580
[   41.519233]  ? lock_acquire+0x1d5/0x580
[   41.523171]  ? vcpu_load+0x1c/0x70
[   41.526676]  ? lock_release+0xa40/0xa40
[   41.530614]  ? trace_event_raw_event_sched_switch+0x8a0/0x8a0
[   41.536466]  ? rcu_note_context_switch+0x710/0x710
[   41.541360]  ? __might_sleep+0x95/0x190
[   41.545298]  ? vcpu_load+0x1c/0x70
[   41.548802]  ? __mutex_lock+0x16f/0x19d0
[   41.552826]  ? vcpu_load+0x1c/0x70
[   41.556333]  ? vcpu_load+0x1c/0x70
[   41.559839]  ? trace_hardirqs_off+0xd/0x10
[   41.564040]  ? mutex_lock_io_nested+0x1880/0x1880
[   41.568849]  ? find_held_lock+0x35/0x1d0
[   41.572884]  ? __might_fault+0x110/0x1d0
[   41.576909]  ? lock_downgrade+0x990/0x990
[   41.581025]  ? vmx_vcpu_load+0x9c6/0xdd0
[   41.585056]  ? handle_invept+0x5f0/0x5f0
[   41.589085]  ? __might_sleep+0x95/0x190
[   41.593032]  ? kasan_check_read+0x11/0x20
[   41.597147]  ? _copy_to_user+0xa2/0xc0
[   41.601004]  ? kvm_arch_dev_ioctl+0xc7/0x3b0
[   41.605379]  ? kvm_vm_ioctl_check_extension+0x510/0x510
[   41.610711]  ? kvm_arch_vcpu_load+0x1c1/0x890
[   41.615173]  ? kvm_arch_vcpu_load+0x4b1/0x890
[   41.619635]  ? find_held_lock+0x35/0x1d0
[   41.623661]  ? kvm_arch_dev_ioctl+0x3b0/0x3b0
[   41.628122]  ? __hrtick_start+0x1d0/0x1d0
[   41.632241]  ? avc_has_extended_perms+0x6e5/0x12c0
[   41.637138]  ? vcpu_load+0x4b/0x70
[   41.640646]  kvm_vcpu_ioctl+0x240/0x1010
[   41.644673]  ? __kvm_gfn_to_hva_cache_init+0xbb0/0xbb0
[   41.649917]  ? is_bpf_text_address+0xa4/0x120
[   41.654378]  ? avc_has_extended_perms+0x7fa/0x12c0
[   41.659271]  ? unwind_get_return_address+0x6e/0xa0
[   41.664169]  ? avc_ss_reset+0x110/0x110
[   41.668110]  ? putname+0xee/0x130
[   41.671538]  ? save_stack+0xa3/0xd0
[   41.675129]  ? save_stack+0x43/0xd0
[   41.678721]  ? kasan_slab_free+0x71/0xc0
[   41.682745]  ? kmem_cache_free+0x77/0x280
[   41.686859]  ? putname+0xee/0x130
[   41.690278]  ? do_sys_open+0x31b/0x6d0
[   41.694136]  ? __lock_is_held+0xb6/0x140
[   41.698169]  ? trace_event_raw_event_sched_switch+0x8a0/0x8a0
[   41.704022]  ? rcu_note_context_switch+0x710/0x710
[   41.708916]  ? get_unused_fd_flags+0x190/0x190
[   41.713466]  ? __kvm_gfn_to_hva_cache_init+0xbb0/0xbb0
[   41.718706]  do_vfs_ioctl+0x1b1/0x1520
[   41.722560]  ? _cond_resched+0x14/0x30
[   41.726413]  ? ioctl_preallocate+0x2b0/0x2b0
[   41.730789]  ? selinux_capable+0x40/0x40
[   41.734815]  ? putname+0xf3/0x130
[   41.738236]  ? do_sys_open+0x320/0x6d0
[   41.742098]  ? security_file_ioctl+0x89/0xb0
[   41.746471]  SyS_ioctl+0x8f/0xc0
[   41.749806]  entry_SYSCALL_64_fastpath+0x1f/0xbe
[   41.754525] RIP: 0033:0x442f77
[   41.757679] RSP: 002b:00007ffe83574fa8 EFLAGS: 00000217 ORIG_RAX: 0000000000000010
[   41.765351] RAX: ffffffffffffffda RBX: 00007ffe83575680 RCX: 0000000000442f77
[   41.772586] RDX: 00007ffe83575680 RSI: 000000004008ae90 RDI: 0000000000000005
[   41.779821] RBP: 0000000000000082 R08: 0000000000000001 R09: 0000000000000014
[   41.787055] R10: 0000000000000000 R11: 0000000000000217 R12: 0000000000404090
[   41.794290] R13: 0000000000404120 R14: 0000000000000004 R15: 0000000000000000
[   41.801534] 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 
[   41.820598] RIP: __check_object_size+0x3a2/0x4f0 RSP: ffff8801c17c7148
[   41.827301] ---[ end trace 6fd5897e55780320 ]---
[   41.832037] Kernel panic - not syncing: Fatal exception
[   41.837744] Dumping ftrace buffer:
[   41.841260]    (ftrace buffer empty)
[   41.844935] Kernel Offset: disabled
[   41.848528] Rebooting in 86400 seconds..