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-4,10.128.15.221' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   32.821214] kvm: KVM_SET_TSS_ADDR need to be called before entering vcpu
[   32.828414] usercopy: kernel memory overwrite attempt detected to ffff8801d2951bd4 (kvm_vcpu) (1320 bytes)
[   32.829851] ------------[ cut here ]------------
[   32.830545] kernel BUG at mm/usercopy.c:84!
[   32.831175] invalid opcode: 0000 [#1] SMP KASAN
[   32.831801] Dumping ftrace buffer:
[   32.832276]    (ftrace buffer empty)
[   32.832786] Modules linked in:
[   32.833222] CPU: 1 PID: 2992 Comm: syzkaller802744 Not tainted 4.14.0-rc5-mm1+ #20
[   32.834230] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   32.835462] task: ffff8801d1dfa100 task.stack: ffff8801d2370000
[   32.836271] RIP: 0010:__check_object_size+0x3a2/0x4f0
[   32.836967] RSP: 0018:ffff8801d2377148 EFLAGS: 00010286
[   32.837678] RAX: 000000000000005e RBX: ffffffff8511a100 RCX: 0000000000000000
[   32.838643] RDX: 000000000000005e RSI: 1ffff1003a46ede9 RDI: ffffed003a46ee1d
[   32.839623] RBP: ffff8801d2377238 R08: 0000000000000001 R09: 0000000000000000
[   32.840620] R10: 0000000000000001 R11: 0000000000000000 R12: ffffffff8511a0c0
[   32.841573] R13: ffff8801d2951bd4 R14: 0000000000000528 R15: ffffea00074a5400
[   32.848814] FS:  000000000130e880(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000
[   32.857016] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   32.862863] CR2: 00007ffc4a938d50 CR3: 00000001d8ec6000 CR4: 00000000001426e0
[   32.870102] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   32.877339] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   32.884576] Call Trace:
[   32.887132]  ? lock_release+0xa40/0xa40
[   32.891077]  ? check_stack_object+0x140/0x140
[   32.895799]  ? check_noncircular+0x20/0x20
[   32.900003]  ? __might_sleep+0x95/0x190
[   32.903948]  kvm_vcpu_ioctl_set_cpuid2+0x75/0x1a0
[   32.908761]  kvm_arch_vcpu_ioctl+0x1718/0x4710
[   32.913311]  ? find_held_lock+0x35/0x1d0
[   32.917355]  ? kvm_arch_vcpu_put+0x3e0/0x3e0
[   32.921734]  ? depot_save_stack+0x3b5/0x490
[   32.926022]  ? lock_downgrade+0x990/0x990
[   32.930149]  ? do_raw_spin_trylock+0x190/0x190
[   32.934697]  ? is_bpf_text_address+0xa4/0x120
[   32.939183]  ? kernel_text_address+0x102/0x140
[   32.943734]  ? __kernel_text_address+0xd/0x40
[   32.948197]  ? unwind_get_return_address+0x61/0xa0
[   32.953097]  ? trace_hardirqs_off+0xd/0x10
[   32.957299]  ? _raw_spin_unlock_irqrestore+0xa6/0xba
[   32.962372]  ? depot_save_stack+0x3b5/0x490
[   32.966665]  ? __vunmap+0x247/0x2e0
[   32.970260]  ? save_stack+0xa3/0xd0
[   32.973856]  ? lock_acquire+0x1d5/0x580
[   32.977795]  ? lock_acquire+0x1d5/0x580
[   32.981733]  ? vcpu_load+0x1c/0x70
[   32.985242]  ? lock_release+0xa40/0xa40
[   32.989186]  ? trace_event_raw_event_sched_switch+0x8a0/0x8a0
[   32.995046]  ? rcu_note_context_switch+0x710/0x710
[   32.999950]  ? __might_sleep+0x95/0x190
[   33.003892]  ? vcpu_load+0x1c/0x70
[   33.007400]  ? __mutex_lock+0x16f/0x19d0
[   33.011425]  ? vcpu_load+0x1c/0x70
[   33.014932]  ? vcpu_load+0x1c/0x70
[   33.018441]  ? trace_hardirqs_off+0xd/0x10
[   33.022650]  ? mutex_lock_io_nested+0x1880/0x1880
[   33.027464]  ? find_held_lock+0x35/0x1d0
[   33.031499]  ? __might_fault+0x110/0x1d0
[   33.035527]  ? lock_downgrade+0x990/0x990
[   33.039644]  ? vmx_vcpu_load+0x9c6/0xdd0
[   33.043680]  ? handle_invept+0x5f0/0x5f0
[   33.047714]  ? __might_sleep+0x95/0x190
[   33.051662]  ? kasan_check_read+0x11/0x20
[   33.055778]  ? _copy_to_user+0xa2/0xc0
[   33.059632]  ? kvm_arch_dev_ioctl+0xc7/0x3b0
[   33.064011]  ? kvm_vm_ioctl_check_extension+0x510/0x510
[   33.069346]  ? kvm_arch_vcpu_load+0x1c1/0x890
[   33.073817]  ? kvm_arch_vcpu_load+0x4b1/0x890
[   33.078280]  ? find_held_lock+0x35/0x1d0
[   33.082310]  ? kvm_arch_dev_ioctl+0x3b0/0x3b0
[   33.086772]  ? __hrtick_start+0x1d0/0x1d0
[   33.090887]  ? avc_has_extended_perms+0x6e5/0x12c0
[   33.095788]  ? vcpu_load+0x4b/0x70
[   33.099297]  kvm_vcpu_ioctl+0x240/0x1010
[   33.103328]  ? __kvm_gfn_to_hva_cache_init+0xbb0/0xbb0
[   33.108571]  ? is_bpf_text_address+0xa4/0x120
[   33.113035]  ? avc_has_extended_perms+0x7fa/0x12c0
[   33.117943]  ? unwind_get_return_address+0x6e/0xa0
[   33.122841]  ? avc_ss_reset+0x110/0x110
[   33.126781]  ? putname+0xee/0x130
[   33.130202]  ? save_stack+0xa3/0xd0
[   33.133796]  ? save_stack+0x43/0xd0
[   33.137388]  ? kasan_slab_free+0x71/0xc0
[   33.141414]  ? kmem_cache_free+0x77/0x280
[   33.145531]  ? putname+0xee/0x130
[   33.148951]  ? do_sys_open+0x31b/0x6d0
[   33.152810]  ? __lock_is_held+0xb6/0x140
[   33.156847]  ? trace_event_raw_event_sched_switch+0x8a0/0x8a0
[   33.162701]  ? rcu_note_context_switch+0x710/0x710
[   33.167601]  ? get_unused_fd_flags+0x190/0x190
[   33.172157]  ? __kvm_gfn_to_hva_cache_init+0xbb0/0xbb0
[   33.177401]  do_vfs_ioctl+0x1b1/0x1520
[   33.181257]  ? _cond_resched+0x14/0x30
[   33.185112]  ? ioctl_preallocate+0x2b0/0x2b0
[   33.189495]  ? selinux_capable+0x40/0x40
[   33.193527]  ? putname+0xf3/0x130
[   33.196957]  ? do_sys_open+0x320/0x6d0
[   33.200816]  ? security_file_ioctl+0x89/0xb0
[   33.205195]  SyS_ioctl+0x8f/0xc0
[   33.208535]  entry_SYSCALL_64_fastpath+0x1f/0xbe
[   33.213255] RIP: 0033:0x442f97
[   33.216412] RSP: 002b:00007ffc4a938d48 EFLAGS: 00000217 ORIG_RAX: 0000000000000010
[   33.224086] RAX: ffffffffffffffda RBX: 00007ffc4a939420 RCX: 0000000000442f97
[   33.231322] RDX: 00007ffc4a939420 RSI: 000000004008ae90 RDI: 0000000000000005
[   33.238557] RBP: 0000000000000082 R08: 0000000000000001 R09: fffffffffffffffe
[   33.245792] R10: 0000000000000000 R11: 0000000000000217 R12: 00000000004040b0
[   33.253028] R13: 0000000000404140 R14: 0000000000000004 R15: 0000000000000000
[   33.260272] 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 
[   33.279345] RIP: __check_object_size+0x3a2/0x4f0 RSP: ffff8801d2377148
[   33.286153] ---[ end trace 701cfa97f6d9b278 ]---
[   33.291101] Kernel panic - not syncing: Fatal exception
[   33.296869] Dumping ftrace buffer:
[   33.300380]    (ftrace buffer empty)
[   33.304058] Kernel Offset: disabled
[   33.307654] Rebooting in 86400 seconds..