[ 68.332251][ T26] audit: type=1800 audit(1567645863.027:27): pid=9795 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 68.354603][ T26] audit: type=1800 audit(1567645863.037:28): pid=9795 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="ssh" dev="sda1" ino=2417 res=0 [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [ 69.050749][ T26] audit: type=1800 audit(1567645863.837:29): pid=9795 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 [ 69.071597][ T26] audit: type=1800 audit(1567645863.847:30): pid=9795 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 '10.128.0.139' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 77.217511][ T9946] 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. [ 77.247145][ T9946] kvm [9946]: vcpu0, guest rIP: 0xcc Hyper-V uhandled wrmsr: 0x40000004 data 0x20 [ 77.256721][ T9946] kvm [9946]: vcpu0, guest rIP: 0xcc Hyper-V uhandled wrmsr: 0x40000004 data 0x40 [ 77.266088][ T9946] kvm [9946]: vcpu0, guest rIP: 0xcc Hyper-V uhandled wrmsr: 0x40000004 data 0x60 [ 77.275575][ T9946] kvm [9946]: vcpu0, guest rIP: 0xcc Hyper-V uhandled wrmsr: 0x40000004 data 0x80 [ 77.284867][ T9946] kvm [9946]: vcpu0, guest rIP: 0xcc Hyper-V uhandled wrmsr: 0x40000004 data 0x94 [ 77.294245][ T9946] kvm [9946]: vcpu0, guest rIP: 0xcc Hyper-V uhandled wrmsr: 0x40000004 data 0x48c [ 77.303682][ T9946] kvm [9946]: vcpu0, guest rIP: 0xcc Hyper-V uhandled wrmsr: 0x40000004 data 0x4ac [ 77.313024][ T9946] kvm [9946]: vcpu0, guest rIP: 0xcc Hyper-V uhandled wrmsr: 0x40000005 data 0x1520 [ 77.322527][ T9946] kvm [9946]: vcpu0, guest rIP: 0xcc Hyper-V uhandled wrmsr: 0x40000006 data 0x15d4 [ 77.332008][ T9946] kvm [9946]: vcpu0, guest rIP: 0xcc Hyper-V uhandled wrmsr: 0x40000007 data 0x15c4 [ 77.345314][ T9946] kasan: CONFIG_KASAN_INLINE enabled [ 77.350600][ T9946] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 77.358760][ T9946] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 77.365697][ T9946] CPU: 1 PID: 9946 Comm: syz-executor020 Not tainted 5.3.0-rc7+ #0 [ 77.373605][ T9946] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 77.383803][ T9946] RIP: 0010:__apic_accept_irq+0x46/0xbc0 [ 77.389418][ T9946] 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 [ 77.409004][ T9946] RSP: 0018:ffff888090a27820 EFLAGS: 00010202 [ 77.415064][ T9946] RAX: dffffc0000000000 RBX: ffff888090a27958 RCX: 0000000000000000 [ 77.423237][ T9946] RDX: 0000000000000013 RSI: ffffffff811599ba RDI: 0000000000000000 [ 77.431224][ T9946] RBP: ffff888090a27878 R08: 0000000000000000 R09: 0000000000000000 [ 77.439191][ T9946] R10: fffff52000be8c70 R11: ffffc90005f46383 R12: 0000000000000000 [ 77.447152][ T9946] R13: 0000000000000000 R14: 0000000000000000 R15: ffff888093feaff0 [ 77.455279][ T9946] FS: 0000555555ea7880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 77.466181][ T9946] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 77.472846][ T9946] CR2: 0000000000000000 CR3: 0000000091213000 CR4: 00000000001426e0 [ 77.480819][ T9946] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 77.488771][ T9946] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 77.496907][ T9946] Call Trace: [ 77.500193][ T9946] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 77.506439][ T9946] kvm_apic_set_irq+0x10b/0x170 [ 77.511318][ T9946] kvm_hv_process_stimers+0xd55/0x1a10 [ 77.516790][ T9946] ? kvm_hv_irq_routing_update+0x410/0x410 [ 77.522595][ T9946] ? lock_acquire+0x190/0x410 [ 77.527262][ T9946] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 77.533510][ T9946] ? __kasan_check_write+0x14/0x20 [ 77.538602][ T9946] vcpu_enter_guest+0x4d2/0x5e90 [ 77.543867][ T9946] ? mark_held_locks+0xf0/0xf0 [ 77.548619][ T9946] ? kvm_vcpu_ioctl+0x181/0xfd0 [ 77.553448][ T9946] ? handle_emulation_failure+0x4e0/0x4e0 [ 77.559194][ T9946] ? lock_acquire+0x190/0x410 [ 77.563980][ T9946] ? kvm_check_async_pf_completion+0x2d8/0x440 [ 77.570293][ T9946] kvm_arch_vcpu_ioctl_run+0x464/0x1750 [ 77.575838][ T9946] ? kvm_arch_vcpu_ioctl_run+0x464/0x1750 [ 77.581542][ T9946] kvm_vcpu_ioctl+0x4dc/0xfd0 [ 77.586381][ T9946] ? kvm_write_guest_cached+0x40/0x40 [ 77.591736][ T9946] ? tomoyo_path_number_perm+0x263/0x520 [ 77.597353][ T9946] ? tomoyo_execute_permission+0x4a0/0x4a0 [ 77.603274][ T9946] ? put_unused_fd+0x62/0x80 [ 77.607892][ T9946] ? rwlock_bug.part.0+0x90/0x90 [ 77.612822][ T9946] ? put_unused_fd+0x4f/0x80 [ 77.617396][ T9946] ? kvm_write_guest_cached+0x40/0x40 [ 77.623904][ T9946] do_vfs_ioctl+0xdb6/0x13e0 [ 77.628549][ T9946] ? ioctl_preallocate+0x210/0x210 [ 77.633661][ T9946] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 77.639387][ T9946] ? __fget_light+0x1a9/0x230 [ 77.644064][ T9946] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 77.650352][ T9946] ? tomoyo_file_ioctl+0x23/0x30 [ 77.655286][ T9946] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 77.661517][ T9946] ? security_file_ioctl+0x8d/0xc0 [ 77.666609][ T9946] ksys_ioctl+0xab/0xd0 [ 77.670744][ T9946] __x64_sys_ioctl+0x73/0xb0 [ 77.675343][ T9946] do_syscall_64+0xfd/0x6a0 [ 77.679829][ T9946] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 77.685734][ T9946] RIP: 0033:0x442a19 [ 77.689694][ T9946] 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 [ 77.709306][ T9946] RSP: 002b:00007fff374d35f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 77.717696][ T9946] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000442a19 [ 77.725646][ T9946] RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000005 [ 77.733592][ T9946] RBP: 00000000006cd018 R08: 00000000004002c8 R09: 00000000004002c8 [ 77.741537][ T9946] R10: 00000000004002c8 R11: 0000000000000246 R12: 0000000000403ac0 [ 77.749498][ T9946] R13: 0000000000403b50 R14: 0000000000000000 R15: 0000000000000000 [ 77.757450][ T9946] Modules linked in: [ 77.761435][ T9946] ---[ end trace a75ac442203736f5 ]--- [ 77.766983][ T9946] RIP: 0010:__apic_accept_irq+0x46/0xbc0 [ 77.772619][ T9946] 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 [ 77.792375][ T9946] RSP: 0018:ffff888090a27820 EFLAGS: 00010202 [ 77.798732][ T9946] RAX: dffffc0000000000 RBX: ffff888090a27958 RCX: 0000000000000000 [ 77.806812][ T9946] RDX: 0000000000000013 RSI: ffffffff811599ba RDI: 0000000000000000 [ 77.814809][ T9946] RBP: ffff888090a27878 R08: 0000000000000000 R09: 0000000000000000 [ 77.822762][ T9946] R10: fffff52000be8c70 R11: ffffc90005f46383 R12: 0000000000000000 [ 77.830756][ T9946] R13: 0000000000000000 R14: 0000000000000000 R15: ffff888093feaff0 [ 77.838859][ T9946] FS: 0000555555ea7880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 77.847843][ T9946] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 77.854569][ T9946] CR2: 0000000000000000 CR3: 0000000091213000 CR4: 00000000001426e0 [ 77.862532][ T9946] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 77.870572][ T9946] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 77.878807][ T9946] Kernel panic - not syncing: Fatal exception [ 77.886673][ T9946] Kernel Offset: disabled [ 77.891004][ T9946] Rebooting in 86400 seconds..