[ OK ] Started Daily apt upgrade and clean activities. Starting getty on tty2-tty6 if dbus and logind are not available... Starting Permit User Sessions... [ OK ] Started Daily Cleanup of Temporary Directories. [ OK ] Reached target Timers. [ OK ] Started System Logging Service. [ OK ] Found device /dev/ttyS0. [ OK ] Started Permit User Sessions. [ OK ] Started OpenBSD Secure Shell server. [ OK ] Started getty on tty2-tty6 if dbus and logind are not available. [ OK ] Listening on Load/Save RF Kill Switch Status /dev/rfkill Watch. [ OK ] Started Getty on tty6. [ OK ] Started Getty on tty5. [ OK ] Started Getty on tty4. [ OK ] Started Getty on tty3. [ OK ] Started Getty on tty2. [ OK ] Started Getty on tty1. [ OK ] Started Serial Getty on ttyS0. [ OK ] Reached target Login Prompts. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... Starting Load/Save RF Kill Switch Status... [ OK ] Started Update UTMP about System Runlevel Changes. [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.141' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 66.519499][ T29] audit: type=1400 audit(1591327247.537:8): avc: denied { execmem } for pid=6813 comm="syz-executor084" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 66.522540][ T6813] 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. [ 66.585407][ T6813] ------------[ cut here ]------------ [ 66.591097][ T6813] WARNING: CPU: 0 PID: 6813 at arch/x86/kvm/x86.c:618 kvm_inject_emulated_page_fault+0x210/0x290 [ 66.601694][ T6813] Kernel panic - not syncing: panic_on_warn set ... [ 66.608269][ T6813] CPU: 0 PID: 6813 Comm: syz-executor084 Not tainted 5.7.0-syzkaller #0 [ 66.616595][ T6813] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 66.626630][ T6813] Call Trace: [ 66.629923][ T6813] dump_stack+0x188/0x20d [ 66.634258][ T6813] ? kvm_inject_emulated_page_fault+0x1f0/0x290 [ 66.640482][ T6813] panic+0x2e3/0x75c [ 66.644360][ T6813] ? add_taint.cold+0x16/0x16 [ 66.649038][ T6813] ? printk+0xba/0xed [ 66.653018][ T6813] ? log_store.cold+0x16/0x16 [ 66.657698][ T6813] ? __warn.cold+0x14/0x35 [ 66.662096][ T6813] ? __warn+0xd5/0x1c8 [ 66.666170][ T6813] ? kvm_inject_emulated_page_fault+0x210/0x290 [ 66.672394][ T6813] __warn.cold+0x2f/0x35 [ 66.676640][ T6813] ? kvm_inject_emulated_page_fault+0x210/0x290 [ 66.682881][ T6813] report_bug+0x27b/0x2f0 [ 66.687195][ T6813] do_error_trap+0x12b/0x220 [ 66.691790][ T6813] ? kvm_inject_emulated_page_fault+0x210/0x290 [ 66.698042][ T6813] do_invalid_op+0x32/0x40 [ 66.702448][ T6813] ? kvm_inject_emulated_page_fault+0x210/0x290 [ 66.708673][ T6813] invalid_op+0x23/0x30 [ 66.712832][ T6813] RIP: 0010:kvm_inject_emulated_page_fault+0x210/0x290 [ 66.719677][ T6813] 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 70 ca 68 00 <0f> 0b e9 3a fe ff ff 4c 89 e7 e8 31 dc a7 00 e9 5d fe ff ff 48 89 [ 66.739455][ T6813] RSP: 0018:ffffc90001657968 EFLAGS: 00010293 [ 66.745505][ T6813] RAX: ffff88808ca1e140 RBX: ffffc900016579e0 RCX: ffffffff810b2457 [ 66.753456][ T6813] RDX: 0000000000000000 RSI: ffffffff810b2620 RDI: 0000000000000001 [ 66.761410][ T6813] RBP: ffff8880a2518040 R08: ffff88808ca1e140 R09: fffff520002caf58 [ 66.769389][ T6813] R10: ffffc90001657abf R11: fffff520002caf57 R12: 0000000000000000 [ 66.777344][ T6813] R13: 0000000000000001 R14: ffffc90001657ab8 R15: ffff8880a2518380 [ 66.785318][ T6813] ? kvm_inject_emulated_page_fault+0x47/0x290 [ 66.791455][ T6813] ? kvm_inject_emulated_page_fault+0x210/0x290 [ 66.797790][ T6813] ? kvm_inject_emulated_page_fault+0x210/0x290 [ 66.804034][ T6813] nested_vmx_get_vmptr+0x1f9/0x2a0 [ 66.809227][ T6813] ? handle_invept+0x820/0x820 [ 66.813977][ T6813] ? vmx_segment_cache_test_set+0xc2/0x170 [ 66.819779][ T6813] ? nested_vmx_get_vmptr+0x2a0/0x2a0 [ 66.825155][ T6813] ? nested_vmx_get_vmptr+0x2a0/0x2a0 [ 66.830667][ T6813] handle_vmon+0x168/0x3a0 [ 66.835075][ T6813] ? nested_vmx_get_vmptr+0x2a0/0x2a0 [ 66.840432][ T6813] ? lock_release+0x800/0x800 [ 66.845113][ T6813] ? mark_held_locks+0x9f/0xe0 [ 66.849868][ T6813] ? nested_vmx_get_vmptr+0x2a0/0x2a0 [ 66.855225][ T6813] vmx_handle_exit+0x29c/0x1260 [ 66.860096][ T6813] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 66.866150][ T6813] kvm_arch_vcpu_ioctl_run+0x3023/0x69f0 [ 66.871983][ T6813] ? kvm_arch_vcpu_runnable+0x6c0/0x6c0 [ 66.877529][ T6813] ? debug_smp_processor_id+0x2f/0x185 [ 66.882986][ T6813] ? lock_downgrade+0x840/0x840 [ 66.887831][ T6813] ? rcu_read_lock_held_common+0xa0/0xa0 [ 66.893450][ T6813] ? kvm_vcpu_ioctl+0x46a/0xe20 [ 66.898282][ T6813] kvm_vcpu_ioctl+0x46a/0xe20 [ 66.902961][ T6813] ? kvm_get_dirty_log_protect.isra.0+0x670/0x670 [ 66.909388][ T6813] ? ioctl_file_clone+0x180/0x180 [ 66.914478][ T6813] ? selinux_file_mprotect+0x610/0x610 [ 66.920068][ T6813] ? up_read+0x1ab/0x750 [ 66.924317][ T6813] ? copy_siginfo_to_user32+0x1b/0xa0 [ 66.929697][ T6813] ? kvm_get_dirty_log_protect.isra.0+0x670/0x670 [ 66.936182][ T6813] ksys_ioctl+0x11a/0x180 [ 66.940530][ T6813] __x64_sys_ioctl+0x6f/0xb0 [ 66.945127][ T6813] do_syscall_64+0xf6/0x7d0 [ 66.949626][ T6813] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 66.955536][ T6813] RIP: 0033:0x443569 [ 66.959416][ T6813] 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 [ 66.979203][ T6813] RSP: 002b:00007ffef34f5bd8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 66.987786][ T6813] RAX: ffffffffffffffda RBX: 00007ffef34f5be0 RCX: 0000000000443569 [ 66.995759][ T6813] RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000006 [ 67.003712][ T6813] RBP: 0000000000000000 R08: 0000000020003800 R09: 0000000000400eb0 [ 67.011856][ T6813] R10: 00007ffef34f4040 R11: 0000000000000246 R12: 0000000000404610 [ 67.019825][ T6813] R13: 00000000004046a0 R14: 0000000000000000 R15: 0000000000000000 [ 67.029429][ T6813] Kernel Offset: disabled [ 67.033851][ T6813] Rebooting in 86400 seconds..