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-kasan-gce-1,10.128.0.4' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 29.525265] kvm: KVM_SET_TSS_ADDR need to be called before entering vcpu [ 29.540315] kasan: CONFIG_KASAN_INLINE enabled [ 29.544944] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 29.552322] general protection fault: 0000 [#1] SMP KASAN [ 29.557832] Dumping ftrace buffer: [ 29.561338] (ftrace buffer empty) [ 29.565014] Modules linked in: [ 29.568175] CPU: 1 PID: 2983 Comm: syzkaller207407 Not tainted 4.13.0+ #77 [ 29.575166] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.584490] task: ffff8801cf78a480 task.stack: ffff8801cebb0000 [ 29.590521] RIP: 0010:kvm_cpuid+0xcf/0x8e0 [ 29.594729] RSP: 0018:ffff8801cebb7088 EFLAGS: 00010246 [ 29.600064] RAX: dffffc0000000000 RBX: ffff8801cebb7208 RCX: 0000000000000000 [ 29.607299] RDX: 0000000000000000 RSI: ffff8801cebb7208 RDI: ffff8801ce698040 [ 29.614535] RBP: ffff8801cebb7180 R08: 0000000000000000 R09: 0000000000000000 [ 29.621769] R10: 0000000000000002 R11: ffffed0039cd3551 R12: 0000000000000000 [ 29.629004] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000 [ 29.636243] FS: 000000000141e880(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000 [ 29.644433] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 29.650278] CR2: 0000000020a74800 CR3: 00000001c0393000 CR4: 00000000001426e0 [ 29.657515] Call Trace: [ 29.660070] ? copy_overflow+0x30/0x30 [ 29.663921] ? vmx_get_msr+0x3e1/0x1400 [ 29.667861] ? __might_sleep+0x95/0x190 [ 29.671800] ? emulator_get_msr+0x14f/0x1c0 [ 29.676088] ? emulator_set_segment+0x6a0/0x6a0 [ 29.680724] ? __kvm_read_guest_page+0x8c/0xa0 [ 29.685274] emulator_get_cpuid+0x46/0x60 [ 29.689392] check_cr_write+0x379/0x7d0 [ 29.693331] ? check_cr_read+0x130/0x130 [ 29.697356] ? __do_insn_fetch_bytes+0x30c/0x8a0 [ 29.702078] ? check_noncircular+0x20/0x20 [ 29.706280] ? vmx_get_cpl+0x5a/0x80 [ 29.709970] x86_emulate_insn+0x2940/0x3cf0 [ 29.714274] ? init_decode_cache+0xc0/0xc0 [ 29.718473] ? __lock_is_held+0xbc/0x140 [ 29.722511] x86_emulate_instruction+0x411/0x1ca0 [ 29.727319] ? print_usage_bug+0x480/0x480 [ 29.731516] ? check_noncircular+0x20/0x20 [ 29.735718] ? reexecute_instruction.part.165+0x260/0x260 [ 29.741223] ? __lock_is_held+0xbc/0x140 [ 29.745254] vmx_handle_exit+0x6d8/0x1a60 [ 29.749366] ? vmx_set_msr+0x1820/0x1820 [ 29.753393] ? nested_ept_inject_page_fault+0x1f0/0x1f0 [ 29.758728] ? kvm_arch_vcpu_ioctl_run+0x1b91/0x5a30 [ 29.763801] kvm_arch_vcpu_ioctl_run+0x1d36/0x5a30 [ 29.768701] ? mutex_lock_io_nested+0x1740/0x1740 [ 29.773509] ? check_noncircular+0x20/0x20 [ 29.777715] ? kvm_arch_vcpu_runnable+0x520/0x520 [ 29.782522] ? _raw_spin_unlock_irqrestore+0xa6/0xba [ 29.787594] ? find_held_lock+0x39/0x1d0 [ 29.791628] ? lock_downgrade+0x990/0x990 [ 29.795747] ? find_get_pid+0x210/0x210 [ 29.799690] ? lock_release+0xd70/0xd70 [ 29.803629] ? __lock_is_held+0xbc/0x140 [ 29.807659] ? put_pid+0x184/0x1f0 [ 29.811163] ? task_active_pid_ns+0xd0/0xd0 [ 29.815449] ? find_get_pid+0x210/0x210 [ 29.819392] kvm_vcpu_ioctl+0x64c/0x1010 [ 29.823417] ? kvm_vcpu_ioctl+0x64c/0x1010 [ 29.827619] ? __kvm_gfn_to_hva_cache_init+0xbb0/0xbb0 [ 29.832861] ? __handle_mm_fault+0x587/0x39c0 [ 29.837322] ? __pmd_alloc+0x4e0/0x4e0 [ 29.841178] ? find_held_lock+0x39/0x1d0 [ 29.845207] ? lock_downgrade+0x990/0x990 [ 29.849331] ? handle_mm_fault+0x410/0x8d0 [ 29.853531] ? down_read_trylock+0xdb/0x170 [ 29.857815] ? __do_page_fault+0x2b8/0xb60 [ 29.862014] ? __handle_mm_fault+0x39c0/0x39c0 [ 29.866566] ? vmacache_find+0x61/0x270 [ 29.870512] ? __kvm_gfn_to_hva_cache_init+0xbb0/0xbb0 [ 29.875751] do_vfs_ioctl+0x1b1/0x1530 [ 29.879607] ? ioctl_preallocate+0x2b0/0x2b0 [ 29.883981] ? selinux_capable+0x40/0x40 [ 29.888011] ? syscall_return_slowpath+0x2b3/0x500 [ 29.892904] ? fd_install+0x60/0x60 [ 29.896502] ? security_file_ioctl+0x7d/0xb0 [ 29.900873] ? security_file_ioctl+0x89/0xb0 [ 29.905246] SyS_ioctl+0x8f/0xc0 [ 29.908578] entry_SYSCALL_64_fastpath+0x1f/0xbe [ 29.913297] RIP: 0033:0x443489 [ 29.916455] RSP: 002b:00007ffd2d62ee58 EFLAGS: 00000206 ORIG_RAX: 0000000000000010 [ 29.924131] RAX: ffffffffffffffda RBX: ffffffffffffffff RCX: 0000000000443489 [ 29.931366] RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000005 [ 29.938604] RBP: 0000000000000082 R08: 0000000000000000 R09: 00000000004002c8 [ 29.945838] R10: 0000000000000012 R11: 0000000000000206 R12: 0000000000009120 [ 29.953074] R13: 000000002aaaaaab R14: 0000000000000004 R15: 0000000020a71000 [ 29.960315] Code: 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 4d 06 00 00 8b 03 4c 89 e2 48 c1 ea 03 89 85 34 ff ff ff 48 b8 00 00 00 00 00 fc ff df <0f> b6 14 02 4c 89 e0 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 [ 29.979379] RIP: kvm_cpuid+0xcf/0x8e0 RSP: ffff8801cebb7088 [ 29.985130] ---[ end trace cf9b92bb988d4a81 ]--- [ 29.990079] Kernel panic - not syncing: Fatal exception [ 29.995772] Dumping ftrace buffer: [ 29.999282] (ftrace buffer empty) [ 30.002959] Kernel Offset: disabled [ 30.006554] Rebooting in 86400 seconds..