[....] 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. [ 63.411752][ T26] kauditd_printk_skb: 7 callbacks suppressed [ 63.411762][ T26] audit: type=1800 audit(1567650051.589:29): pid=9627 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 [ 63.438464][ T26] audit: type=1800 audit(1567650051.589:30): pid=9627 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rmnologin" dev="sda1" ino=2423 res=0 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.155' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 69.945631][ T9780] 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. [ 69.973787][ T9780] kvm [9780]: vcpu0, guest rIP: 0xcc Hyper-V uhandled wrmsr: 0x40000004 data 0x20 [ 69.983160][ T9780] kvm [9780]: vcpu0, guest rIP: 0xcc Hyper-V uhandled wrmsr: 0x40000004 data 0x40 [ 69.992750][ T9780] kvm [9780]: vcpu0, guest rIP: 0xcc Hyper-V uhandled wrmsr: 0x40000004 data 0x60 [ 70.002245][ T9780] kvm [9780]: vcpu0, guest rIP: 0xcc Hyper-V uhandled wrmsr: 0x40000004 data 0x80 [ 70.011566][ T9780] kvm [9780]: vcpu0, guest rIP: 0xcc Hyper-V uhandled wrmsr: 0x40000004 data 0x94 [ 70.020854][ T9780] kvm [9780]: vcpu0, guest rIP: 0xcc Hyper-V uhandled wrmsr: 0x40000004 data 0x48c [ 70.030293][ T9780] kvm [9780]: vcpu0, guest rIP: 0xcc Hyper-V uhandled wrmsr: 0x40000004 data 0x4ac [ 70.039688][ T9780] kvm [9780]: vcpu0, guest rIP: 0xcc Hyper-V uhandled wrmsr: 0x40000005 data 0x1520 [ 70.049174][ T9780] kvm [9780]: vcpu0, guest rIP: 0xcc Hyper-V uhandled wrmsr: 0x40000006 data 0x15d4 [ 70.058630][ T9780] kvm [9780]: vcpu0, guest rIP: 0xcc Hyper-V uhandled wrmsr: 0x40000007 data 0x15c4 [ 70.071797][ T9780] kasan: CONFIG_KASAN_INLINE enabled [ 70.077165][ T9780] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 70.085756][ T9780] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 70.092692][ T9780] CPU: 0 PID: 9780 Comm: syz-executor061 Not tainted 5.3.0-rc7+ #0 [ 70.100564][ T9780] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 70.110630][ T9780] RIP: 0010:__apic_accept_irq+0x46/0xbc0 [ 70.116240][ T9780] Code: c0 44 89 45 d4 4c 89 4d c8 e8 96 db 5c 00 49 8d 86 98 00 00 00 48 89 c2 48 89 45 b8 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <80> 3c 02 00 0f 85 65 0a 00 00 4d 8b be 98 00 00 00 0f 1f 44 00 00 [ 70.135847][ T9780] RSP: 0018:ffff888093c8f8d0 EFLAGS: 00010202 [ 70.141897][ T9780] RAX: dffffc0000000000 RBX: ffff888093c8fa08 RCX: 0000000000000000 [ 70.149846][ T9780] RDX: 0000000000000013 RSI: ffffffff811599ba RDI: 0000000000000000 [ 70.157792][ T9780] RBP: ffff888093c8f928 R08: 0000000000000000 R09: 0000000000000000 [ 70.165747][ T9780] R10: fffff52000be5870 R11: ffffc90005f2c383 R12: 0000000000000000 [ 70.173704][ T9780] R13: 0000000000000000 R14: 0000000000000000 R15: ffff888099822ff0 [ 70.181740][ T9780] FS: 0000000000000000(0000) GS:ffff8880ae800000(0063) knlGS:0000000056ce0840 [ 70.190642][ T9780] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 70.197207][ T9780] CR2: 0000000000000000 CR3: 000000008c8ca000 CR4: 00000000001426f0 [ 70.205156][ T9780] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 70.213100][ T9780] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 70.221048][ T9780] Call Trace: [ 70.224322][ T9780] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 70.230539][ T9780] kvm_apic_set_irq+0x10b/0x170 [ 70.235364][ T9780] kvm_hv_process_stimers+0xd55/0x1a10 [ 70.240798][ T9780] ? kvm_hv_irq_routing_update+0x410/0x410 [ 70.246578][ T9780] ? lock_acquire+0x190/0x410 [ 70.251229][ T9780] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 70.257444][ T9780] ? __kasan_check_write+0x14/0x20 [ 70.262530][ T9780] vcpu_enter_guest+0x4d2/0x5e90 [ 70.267450][ T9780] ? mark_held_locks+0xf0/0xf0 [ 70.272198][ T9780] ? handle_emulation_failure+0x4e0/0x4e0 [ 70.277908][ T9780] ? lock_acquire+0x190/0x410 [ 70.282562][ T9780] ? kvm_check_async_pf_completion+0x2d8/0x440 [ 70.288691][ T9780] kvm_arch_vcpu_ioctl_run+0x464/0x1750 [ 70.294210][ T9780] ? kvm_arch_vcpu_ioctl_run+0x464/0x1750 [ 70.299905][ T9780] kvm_vcpu_ioctl+0x4dc/0xfd0 [ 70.304565][ T9780] ? kvm_write_guest_cached+0x40/0x40 [ 70.309910][ T9780] ? put_unused_fd+0x4f/0x80 [ 70.314478][ T9780] kvm_vcpu_compat_ioctl+0x1c4/0x3a0 [ 70.319738][ T9780] ? kvm_vcpu_ioctl+0xfd0/0xfd0 [ 70.324561][ T9780] ? tomoyo_file_ioctl+0x23/0x30 [ 70.329481][ T9780] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 70.335703][ T9780] ? security_file_ioctl+0x8d/0xc0 [ 70.340789][ T9780] ? kvm_vcpu_ioctl+0xfd0/0xfd0 [ 70.345622][ T9780] __ia32_compat_sys_ioctl+0x195/0x620 [ 70.351057][ T9780] do_fast_syscall_32+0x27b/0xdb3 [ 70.356054][ T9780] entry_SYSENTER_compat+0x70/0x7f [ 70.361135][ T9780] RIP: 0023:0xf7f20a29 [ 70.365189][ T9780] Code: b8 80 96 98 00 eb cc 8b 04 24 c3 8b 1c 24 c3 8b 34 24 c3 8b 3c 24 c3 90 90 90 90 90 90 90 90 90 90 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90 [ 70.384767][ T9780] RSP: 002b:00000000ffb3445c EFLAGS: 00000217 ORIG_RAX: 0000000000000036 [ 70.393167][ T9780] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 000000000000ae80 [ 70.401114][ T9780] RDX: 0000000000000000 RSI: 0000000000000036 RDI: 00000000ffffffff [ 70.409070][ T9780] RBP: 000000004020ae46 R08: 0000000000000000 R09: 0000000000000000 [ 70.417026][ T9780] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 70.424979][ T9780] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 70.433022][ T9780] Modules linked in: [ 70.436966][ T9780] ---[ end trace de2e8cf5c3758fac ]--- [ 70.442428][ T9780] RIP: 0010:__apic_accept_irq+0x46/0xbc0 [ 70.448084][ T9780] Code: c0 44 89 45 d4 4c 89 4d c8 e8 96 db 5c 00 49 8d 86 98 00 00 00 48 89 c2 48 89 45 b8 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <80> 3c 02 00 0f 85 65 0a 00 00 4d 8b be 98 00 00 00 0f 1f 44 00 00 [ 70.467710][ T9780] RSP: 0018:ffff888093c8f8d0 EFLAGS: 00010202 [ 70.473755][ T9780] RAX: dffffc0000000000 RBX: ffff888093c8fa08 RCX: 0000000000000000 [ 70.481744][ T9780] RDX: 0000000000000013 RSI: ffffffff811599ba RDI: 0000000000000000 [ 70.489741][ T9780] RBP: ffff888093c8f928 R08: 0000000000000000 R09: 0000000000000000 [ 70.497724][ T9780] R10: fffff52000be5870 R11: ffffc90005f2c383 R12: 0000000000000000 [ 70.505753][ T9780] R13: 0000000000000000 R14: 0000000000000000 R15: ffff888099822ff0 [ 70.513764][ T9780] FS: 0000000000000000(0000) GS:ffff8880ae800000(0063) knlGS:0000000056ce0840 [ 70.522718][ T9780] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 70.529325][ T9780] CR2: 0000000000000000 CR3: 000000008c8ca000 CR4: 00000000001426f0 [ 70.537311][ T9780] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 70.545272][ T9780] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 70.553259][ T9780] Kernel panic - not syncing: Fatal exception [ 70.560787][ T9780] Kernel Offset: disabled [ 70.565114][ T9780] Rebooting in 86400 seconds..