[ OK ] Started Getty on tty4. [ OK ] Started Getty on tty3. [ OK ] Started Getty on tty2. [ OK ] Started Serial Getty on ttyS0. [ OK ] Started Getty on tty1. [ OK ] Reached target Login Prompts. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.148' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 60.583925][ T6819] L1TF CPU bug present and SMT on, data leak possible. See CVE-2018-3646 and https://www.kernel.org/doc/html/latest/admin-guide/hw-vuln/l1tf.html for details. [ 60.640250][ T6819] ------------[ cut here ]------------ [ 60.646034][ T6819] WARNING: CPU: 1 PID: 6819 at arch/x86/kvm/x86.c:618 kvm_inject_emulated_page_fault+0x210/0x290 [ 60.656522][ T6819] Kernel panic - not syncing: panic_on_warn set ... [ 60.663102][ T6819] CPU: 1 PID: 6819 Comm: syz-executor084 Not tainted 5.7.0-syzkaller #0 [ 60.671400][ T6819] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.681435][ T6819] Call Trace: [ 60.684709][ T6819] dump_stack+0x188/0x20d [ 60.689021][ T6819] ? kvm_inject_emulated_page_fault+0x210/0x290 [ 60.695239][ T6819] panic+0x2e3/0x75c [ 60.699118][ T6819] ? add_taint.cold+0x16/0x16 [ 60.703790][ T6819] ? printk+0xba/0xed [ 60.707777][ T6819] ? log_store.cold+0x16/0x16 [ 60.712448][ T6819] ? __warn.cold+0x14/0x35 [ 60.716934][ T6819] ? __warn+0xd5/0x1c8 [ 60.720987][ T6819] ? kvm_inject_emulated_page_fault+0x210/0x290 [ 60.727204][ T6819] __warn.cold+0x2f/0x35 [ 60.731426][ T6819] ? kvm_inject_emulated_page_fault+0x210/0x290 [ 60.737643][ T6819] report_bug+0x27b/0x2f0 [ 60.741968][ T6819] do_error_trap+0x12b/0x220 [ 60.746548][ T6819] ? kvm_inject_emulated_page_fault+0x210/0x290 [ 60.752792][ T6819] do_invalid_op+0x32/0x40 [ 60.757188][ T6819] ? kvm_inject_emulated_page_fault+0x210/0x290 [ 60.763423][ T6819] invalid_op+0x23/0x30 [ 60.767592][ T6819] RIP: 0010:kvm_inject_emulated_page_fault+0x210/0x290 [ 60.774426][ T6819] Code: 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 75 79 48 8b 53 08 4c 89 f6 48 89 ef e8 da 0f 0c 00 e9 10 ff ff ff e8 c0 ad 68 00 <0f> 0b e9 3a fe ff ff 4c 89 e7 e8 e1 c2 a7 00 e9 5d fe ff ff 48 89 [ 60.794023][ T6819] RSP: 0018:ffffc900018f7968 EFLAGS: 00010293 [ 60.800127][ T6819] RAX: ffff88809536c580 RBX: ffffc900018f79e0 RCX: ffffffff810b1f37 [ 60.808131][ T6819] RDX: 0000000000000000 RSI: ffffffff810b2100 RDI: 0000000000000001 [ 60.816112][ T6819] RBP: ffff888094e80040 R08: ffff88809536c580 R09: fffff5200031ef58 [ 60.824065][ T6819] R10: ffffc900018f7abf R11: fffff5200031ef57 R12: 0000000000000000 [ 60.832031][ T6819] R13: 0000000000000001 R14: ffffc900018f7ab8 R15: ffff888094e80380 [ 60.839999][ T6819] ? kvm_inject_emulated_page_fault+0x47/0x290 [ 60.846148][ T6819] ? kvm_inject_emulated_page_fault+0x210/0x290 [ 60.852429][ T6819] ? kvm_inject_emulated_page_fault+0x210/0x290 [ 60.858675][ T6819] nested_vmx_get_vmptr+0x1f9/0x2a0 [ 60.863873][ T6819] ? handle_invept+0x820/0x820 [ 60.868640][ T6819] ? vmx_segment_cache_test_set+0xc2/0x170 [ 60.875380][ T6819] ? nested_vmx_get_vmptr+0x2a0/0x2a0 [ 60.880745][ T6819] ? nested_vmx_get_vmptr+0x2a0/0x2a0 [ 60.886098][ T6819] handle_vmon+0x168/0x3a0 [ 60.890502][ T6819] ? nested_vmx_get_vmptr+0x2a0/0x2a0 [ 60.895851][ T6819] ? lock_release+0x800/0x800 [ 60.900506][ T6819] ? smp_apic_timer_interrupt+0x1b6/0x600 [ 60.908291][ T6819] ? mark_held_locks+0x9f/0xe0 [ 60.913037][ T6819] ? nested_vmx_get_vmptr+0x2a0/0x2a0 [ 60.918395][ T6819] vmx_handle_exit+0x29c/0x1260 [ 60.923238][ T6819] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.929216][ T6819] kvm_arch_vcpu_ioctl_run+0x3023/0x69f0 [ 60.934852][ T6819] ? kvm_arch_vcpu_runnable+0x6c0/0x6c0 [ 60.940391][ T6819] ? debug_smp_processor_id+0x2f/0x185 [ 60.945844][ T6819] ? lock_downgrade+0x840/0x840 [ 60.950690][ T6819] ? rcu_read_lock_held_common+0xa0/0xa0 [ 60.956348][ T6819] ? kvm_vcpu_ioctl+0x46a/0xe20 [ 60.961190][ T6819] kvm_vcpu_ioctl+0x46a/0xe20 [ 60.965867][ T6819] ? kvm_get_dirty_log_protect.isra.0+0x670/0x670 [ 60.972268][ T6819] ? ioctl_file_clone+0x180/0x180 [ 60.977272][ T6819] ? up_read+0x1ab/0x750 [ 60.981493][ T6819] ? copy_siginfo_to_user32+0xa0/0xa0 [ 60.986866][ T6819] ? kvm_get_dirty_log_protect.isra.0+0x670/0x670 [ 60.993259][ T6819] ksys_ioctl+0x11a/0x180 [ 60.999321][ T6819] __x64_sys_ioctl+0x6f/0xb0 [ 61.003913][ T6819] do_syscall_64+0xf6/0x7d0 [ 61.008412][ T6819] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 61.014367][ T6819] RIP: 0033:0x443569 [ 61.018259][ T6819] Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 1b 0c fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 61.037840][ T6819] RSP: 002b:00007ffc83d85688 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 61.046227][ T6819] RAX: ffffffffffffffda RBX: 00007ffc83d85690 RCX: 0000000000443569 [ 61.054175][ T6819] RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000006 [ 61.062133][ T6819] RBP: 0000000000000000 R08: 0000000020003800 R09: 0000000000400eb0 [ 61.070082][ T6819] R10: 00007ffc83d83af0 R11: 0000000000000246 R12: 0000000000404610 [ 61.078032][ T6819] R13: 00000000004046a0 R14: 0000000000000000 R15: 0000000000000000 [ 61.087628][ T6819] Kernel Offset: disabled [ 61.092025][ T6819] Rebooting in 86400 seconds..