[....] 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. [ 62.388042][ T26] kauditd_printk_skb: 7 callbacks suppressed [ 62.388052][ T26] audit: type=1800 audit(1567647762.977:29): pid=9564 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 [ 62.424492][ T26] audit: type=1800 audit(1567647762.977:30): pid=9564 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 '10.128.15.197' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 69.510674][ T9714] 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. [ 69.537725][ T9714] kvm [9714]: vcpu0, guest rIP: 0xcc Hyper-V uhandled wrmsr: 0x40000004 data 0x20 [ 69.547007][ T9714] kvm [9714]: vcpu0, guest rIP: 0xcc Hyper-V uhandled wrmsr: 0x40000004 data 0x40 [ 69.556281][ T9714] kvm [9714]: vcpu0, guest rIP: 0xcc Hyper-V uhandled wrmsr: 0x40000004 data 0x60 [ 69.565547][ T9714] kvm [9714]: vcpu0, guest rIP: 0xcc Hyper-V uhandled wrmsr: 0x40000004 data 0x80 [ 69.574874][ T9714] kvm [9714]: vcpu0, guest rIP: 0xcc Hyper-V uhandled wrmsr: 0x40000004 data 0x94 [ 69.584328][ T9714] kvm [9714]: vcpu0, guest rIP: 0xcc Hyper-V uhandled wrmsr: 0x40000004 data 0x48c [ 69.593630][ T9714] kvm [9714]: vcpu0, guest rIP: 0xcc Hyper-V uhandled wrmsr: 0x40000004 data 0x4ac [ 69.603138][ T9714] kvm [9714]: vcpu0, guest rIP: 0xcc Hyper-V uhandled wrmsr: 0x40000005 data 0x1520 [ 69.612828][ T9714] kvm [9714]: vcpu0, guest rIP: 0xcc Hyper-V uhandled wrmsr: 0x40000006 data 0x15d4 [ 69.622272][ T9714] kvm [9714]: vcpu0, guest rIP: 0xcc Hyper-V uhandled wrmsr: 0x40000007 data 0x15c4 [ 69.635537][ T9714] kasan: CONFIG_KASAN_INLINE enabled [ 69.640803][ T9714] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 69.648933][ T9714] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 69.655864][ T9714] CPU: 1 PID: 9714 Comm: syz-executor101 Not tainted 5.3.0-rc7+ #0 [ 69.663723][ T9714] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 69.673763][ T9714] RIP: 0010:__apic_accept_irq+0x46/0xbc0 [ 69.679373][ T9714] 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 [ 69.698956][ T9714] RSP: 0018:ffff888094daf8d0 EFLAGS: 00010202 [ 69.704997][ T9714] RAX: dffffc0000000000 RBX: ffff888094dafa08 RCX: 0000000000000000 [ 69.712942][ T9714] RDX: 0000000000000013 RSI: ffffffff811599ba RDI: 0000000000000000 [ 69.720885][ T9714] RBP: ffff888094daf928 R08: 0000000000000000 R09: 0000000000000000 [ 69.728835][ T9714] R10: fffff52000be8870 R11: ffffc90005f44383 R12: 0000000000000000 [ 69.736779][ T9714] R13: 0000000000000000 R14: 0000000000000000 R15: ffff888094832ff0 [ 69.744741][ T9714] FS: 0000000000000000(0000) GS:ffff8880ae900000(0063) knlGS:0000000056692840 [ 69.753652][ T9714] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 69.760213][ T9714] CR2: 0000000000000000 CR3: 000000008f1f0000 CR4: 00000000001426e0 [ 69.768164][ T9714] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 69.776124][ T9714] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 69.784071][ T9714] Call Trace: [ 69.787350][ T9714] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 69.793571][ T9714] kvm_apic_set_irq+0x10b/0x170 [ 69.798397][ T9714] kvm_hv_process_stimers+0xd55/0x1a10 [ 69.803847][ T9714] ? kvm_hv_irq_routing_update+0x410/0x410 [ 69.809631][ T9714] ? lock_acquire+0x190/0x410 [ 69.814286][ T9714] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 69.820513][ T9714] ? __kasan_check_write+0x14/0x20 [ 69.825608][ T9714] vcpu_enter_guest+0x4d2/0x5e90 [ 69.830625][ T9714] ? mark_held_locks+0xf0/0xf0 [ 69.835379][ T9714] ? handle_emulation_failure+0x4e0/0x4e0 [ 69.841084][ T9714] ? lock_acquire+0x190/0x410 [ 69.845738][ T9714] ? kvm_check_async_pf_completion+0x2d8/0x440 [ 69.851870][ T9714] kvm_arch_vcpu_ioctl_run+0x464/0x1750 [ 69.857407][ T9714] ? kvm_arch_vcpu_ioctl_run+0x464/0x1750 [ 69.863113][ T9714] kvm_vcpu_ioctl+0x4dc/0xfd0 [ 69.867767][ T9714] ? kvm_write_guest_cached+0x40/0x40 [ 69.873114][ T9714] ? put_unused_fd+0x4f/0x80 [ 69.877688][ T9714] kvm_vcpu_compat_ioctl+0x1c4/0x3a0 [ 69.882951][ T9714] ? kvm_vcpu_ioctl+0xfd0/0xfd0 [ 69.887780][ T9714] ? tomoyo_file_ioctl+0x23/0x30 [ 69.892709][ T9714] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 69.898925][ T9714] ? security_file_ioctl+0x8d/0xc0 [ 69.904033][ T9714] ? kvm_vcpu_ioctl+0xfd0/0xfd0 [ 69.908870][ T9714] __ia32_compat_sys_ioctl+0x195/0x620 [ 69.914309][ T9714] do_fast_syscall_32+0x27b/0xdb3 [ 69.919413][ T9714] entry_SYSENTER_compat+0x70/0x7f [ 69.924519][ T9714] RIP: 0023:0xf7f3ca29 [ 69.928926][ T9714] 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 [ 69.948506][ T9714] RSP: 002b:00000000ff80a8dc EFLAGS: 00000217 ORIG_RAX: 0000000000000036 [ 69.956891][ T9714] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 000000000000ae80 [ 69.964842][ T9714] RDX: 0000000000000000 RSI: 0000000000000036 RDI: 00000000ffffffff [ 69.972826][ T9714] RBP: 000000004020ae46 R08: 0000000000000000 R09: 0000000000000000 [ 69.981147][ T9714] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 69.989104][ T9714] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 69.997401][ T9714] Modules linked in: [ 70.001383][ T9714] ---[ end trace 349b2f798b59b510 ]--- [ 70.006876][ T9714] RIP: 0010:__apic_accept_irq+0x46/0xbc0 [ 70.012486][ T9714] 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 [ 70.032141][ T9714] RSP: 0018:ffff888094daf8d0 EFLAGS: 00010202 [ 70.038230][ T9714] RAX: dffffc0000000000 RBX: ffff888094dafa08 RCX: 0000000000000000 [ 70.046237][ T9714] RDX: 0000000000000013 RSI: ffffffff811599ba RDI: 0000000000000000 [ 70.054220][ T9714] RBP: ffff888094daf928 R08: 0000000000000000 R09: 0000000000000000 [ 70.062169][ T9714] R10: fffff52000be8870 R11: ffffc90005f44383 R12: 0000000000000000 [ 70.070153][ T9714] R13: 0000000000000000 R14: 0000000000000000 R15: ffff888094832ff0 [ 70.078140][ T9714] FS: 0000000000000000(0000) GS:ffff8880ae900000(0063) knlGS:0000000056692840 [ 70.087078][ T9714] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 70.093653][ T9714] CR2: 0000000000000000 CR3: 000000008f1f0000 CR4: 00000000001426e0 [ 70.101659][ T9714] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 70.109643][ T9714] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 70.117633][ T9714] Kernel panic - not syncing: Fatal exception [ 70.125277][ T9714] Kernel Offset: disabled [ 70.129623][ T9714] Rebooting in 86400 seconds..