[ 71.113612][ T26] audit: type=1800 audit(1567647765.185:32): pid=10124 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="ssh" dev="sda1" ino=2417 res=0 Starting mcstransd: [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [ 71.793443][ T26] audit: type=1800 audit(1567647765.935:33): pid=10124 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.210' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 93.403636][ T26] kauditd_printk_skb: 2 callbacks suppressed [ 93.403650][ T26] audit: type=1400 audit(1567647787.545:36): avc: denied { map } for pid=10313 comm="syz-executor342" path="/root/syz-executor342010820" dev="sda1" ino=16483 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 93.407372][T10313] 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. [ 93.466596][T10313] kvm [10313]: vcpu0, guest rIP: 0xcc Hyper-V uhandled wrmsr: 0x40000004 data 0x20 [ 93.476270][T10313] kvm [10313]: vcpu0, guest rIP: 0xcc Hyper-V uhandled wrmsr: 0x40000004 data 0x40 [ 93.485848][T10313] kvm [10313]: vcpu0, guest rIP: 0xcc Hyper-V uhandled wrmsr: 0x40000004 data 0x60 [ 93.495161][T10313] kvm [10313]: vcpu0, guest rIP: 0xcc Hyper-V uhandled wrmsr: 0x40000004 data 0x80 [ 93.504532][T10313] kvm [10313]: vcpu0, guest rIP: 0xcc Hyper-V uhandled wrmsr: 0x40000004 data 0x94 [ 93.513881][T10313] kvm [10313]: vcpu0, guest rIP: 0xcc Hyper-V uhandled wrmsr: 0x40000004 data 0x48c [ 93.523330][T10313] kvm [10313]: vcpu0, guest rIP: 0xcc Hyper-V uhandled wrmsr: 0x40000004 data 0x4ac [ 93.532770][T10313] kvm [10313]: vcpu0, guest rIP: 0xcc Hyper-V uhandled wrmsr: 0x40000005 data 0x1520 [ 93.542292][T10313] kvm [10313]: vcpu0, guest rIP: 0xcc Hyper-V uhandled wrmsr: 0x40000006 data 0x15d4 [ 93.551807][T10313] kvm [10313]: vcpu0, guest rIP: 0xcc Hyper-V uhandled wrmsr: 0x40000007 data 0x15c4 [ 93.565275][T10313] kasan: CONFIG_KASAN_INLINE enabled [ 93.570581][T10313] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 93.578660][T10313] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 93.585573][T10313] CPU: 1 PID: 10313 Comm: syz-executor342 Not tainted 5.3.0-rc7+ #0 [ 93.593526][T10313] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 93.603566][T10313] RIP: 0010:__apic_accept_irq+0x46/0xbc0 [ 93.609173][T10313] 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 [ 93.628748][T10313] RSP: 0018:ffff88809738f820 EFLAGS: 00010202 [ 93.634807][T10313] RAX: dffffc0000000000 RBX: ffff88809738f958 RCX: 0000000000000000 [ 93.642750][T10313] RDX: 0000000000000013 RSI: ffffffff811599ba RDI: 0000000000000000 [ 93.650691][T10313] RBP: ffff88809738f878 R08: 0000000000000000 R09: 0000000000000000 [ 93.658634][T10313] R10: fffff52000bf3070 R11: ffffc90005f98383 R12: 0000000000000000 [ 93.666582][T10313] R13: 0000000000000000 R14: 0000000000000000 R15: ffff8880a5912ff0 [ 93.674533][T10313] FS: 0000555555f48880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 93.683455][T10313] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 93.690019][T10313] CR2: 0000000000000000 CR3: 00000000a19e1000 CR4: 00000000001426e0 [ 93.697971][T10313] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 93.705922][T10313] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 93.713867][T10313] Call Trace: [ 93.717146][T10313] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 93.723377][T10313] kvm_apic_set_irq+0x10b/0x170 [ 93.728218][T10313] kvm_hv_process_stimers+0xd55/0x1a10 [ 93.733669][T10313] ? kvm_hv_irq_routing_update+0x410/0x410 [ 93.739452][T10313] ? lock_acquire+0x190/0x410 [ 93.744150][T10313] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 93.750367][T10313] ? __kasan_check_write+0x14/0x20 [ 93.755455][T10313] vcpu_enter_guest+0x4d2/0x5e90 [ 93.760415][T10313] ? mark_held_locks+0xf0/0xf0 [ 93.765152][T10313] ? kvm_vcpu_ioctl+0x181/0xfd0 [ 93.769981][T10313] ? handle_emulation_failure+0x4e0/0x4e0 [ 93.775676][T10313] ? lock_acquire+0x190/0x410 [ 93.780326][T10313] ? kvm_check_async_pf_completion+0x2d8/0x440 [ 93.786455][T10313] kvm_arch_vcpu_ioctl_run+0x464/0x1750 [ 93.791974][T10313] ? kvm_arch_vcpu_ioctl_run+0x464/0x1750 [ 93.797670][T10313] kvm_vcpu_ioctl+0x4dc/0xfd0 [ 93.802322][T10313] ? kvm_write_guest_cached+0x40/0x40 [ 93.807668][T10313] ? tomoyo_path_number_perm+0x263/0x520 [ 93.813277][T10313] ? tomoyo_execute_permission+0x4a0/0x4a0 [ 93.819055][T10313] ? put_unused_fd+0x62/0x80 [ 93.823624][T10313] ? rwlock_bug.part.0+0x90/0x90 [ 93.828533][T10313] ? put_unused_fd+0x4f/0x80 [ 93.833116][T10313] ? kvm_write_guest_cached+0x40/0x40 [ 93.838462][T10313] do_vfs_ioctl+0xdb6/0x13e0 [ 93.843027][T10313] ? ioctl_preallocate+0x210/0x210 [ 93.848124][T10313] ? selinux_file_mprotect+0x620/0x620 [ 93.853556][T10313] ? __fget_light+0x1a9/0x230 [ 93.858208][T10313] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 93.864426][T10313] ? tomoyo_file_ioctl+0x23/0x30 [ 93.869338][T10313] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 93.875552][T10313] ? security_file_ioctl+0x8d/0xc0 [ 93.880636][T10313] ksys_ioctl+0xab/0xd0 [ 93.884771][T10313] __x64_sys_ioctl+0x73/0xb0 [ 93.889339][T10313] do_syscall_64+0xfd/0x6a0 [ 93.893838][T10313] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 93.899702][T10313] RIP: 0033:0x442a19 [ 93.903585][T10313] 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 [ 93.923162][T10313] RSP: 002b:00007ffe5e54d718 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 93.931543][T10313] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000442a19 [ 93.939485][T10313] RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000005 [ 93.947428][T10313] RBP: 00000000006cd018 R08: 00000000004002c8 R09: 00000000004002c8 [ 93.955385][T10313] R10: 00000000004002c8 R11: 0000000000000246 R12: 0000000000403ac0 [ 93.963342][T10313] R13: 0000000000403b50 R14: 0000000000000000 R15: 0000000000000000 [ 93.971289][T10313] Modules linked in: [ 93.975703][T10313] ---[ end trace 47f6710acee62077 ]--- [ 93.981185][T10313] RIP: 0010:__apic_accept_irq+0x46/0xbc0 [ 93.986867][T10313] 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 [ 94.006507][T10313] RSP: 0018:ffff88809738f820 EFLAGS: 00010202 [ 94.012554][T10313] RAX: dffffc0000000000 RBX: ffff88809738f958 RCX: 0000000000000000 [ 94.020562][T10313] RDX: 0000000000000013 RSI: ffffffff811599ba RDI: 0000000000000000 [ 94.028554][T10313] RBP: ffff88809738f878 R08: 0000000000000000 R09: 0000000000000000 [ 94.036538][T10313] R10: fffff52000bf3070 R11: ffffc90005f98383 R12: 0000000000000000 [ 94.044496][T10313] R13: 0000000000000000 R14: 0000000000000000 R15: ffff8880a5912ff0 [ 94.052492][T10313] FS: 0000555555f48880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 94.061446][T10313] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 94.068047][T10313] CR2: 0000000000000000 CR3: 00000000a19e1000 CR4: 00000000001426e0 [ 94.076038][T10313] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 94.083992][T10313] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 94.092049][T10313] Kernel panic - not syncing: Fatal exception [ 94.099509][T10313] Kernel Offset: disabled [ 94.103831][T10313] Rebooting in 86400 seconds..