[ 70.470698][ T26] audit: type=1800 audit(1567645585.127:29): pid=10245 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 70.505308][ T26] audit: type=1800 audit(1567645585.127:30): pid=10245 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. Starting mcstransd: [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.19' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 78.227159][ T26] kauditd_printk_skb: 5 callbacks suppressed [ 78.227173][ T26] audit: type=1400 audit(1567645592.887:36): avc: denied { map } for pid=10433 comm="syz-executor493" path="/root/syz-executor493742301" 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 [ 78.230863][T10433] 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. [ 78.289591][T10433] kvm [10433]: vcpu0, guest rIP: 0xcc Hyper-V uhandled wrmsr: 0x40000004 data 0x20 [ 78.299590][T10433] kvm [10433]: vcpu0, guest rIP: 0xcc Hyper-V uhandled wrmsr: 0x40000004 data 0x40 [ 78.309330][T10433] kvm [10433]: vcpu0, guest rIP: 0xcc Hyper-V uhandled wrmsr: 0x40000004 data 0x60 [ 78.318941][T10433] kvm [10433]: vcpu0, guest rIP: 0xcc Hyper-V uhandled wrmsr: 0x40000004 data 0x80 [ 78.328428][T10433] kvm [10433]: vcpu0, guest rIP: 0xcc Hyper-V uhandled wrmsr: 0x40000004 data 0x94 [ 78.337960][T10433] kvm [10433]: vcpu0, guest rIP: 0xcc Hyper-V uhandled wrmsr: 0x40000004 data 0x48c [ 78.347674][T10433] kvm [10433]: vcpu0, guest rIP: 0xcc Hyper-V uhandled wrmsr: 0x40000004 data 0x4ac [ 78.357146][T10433] kvm [10433]: vcpu0, guest rIP: 0xcc Hyper-V uhandled wrmsr: 0x40000005 data 0x1520 [ 78.366697][T10433] kvm [10433]: vcpu0, guest rIP: 0xcc Hyper-V uhandled wrmsr: 0x40000006 data 0x15d4 [ 78.376253][T10433] kvm [10433]: vcpu0, guest rIP: 0xcc Hyper-V uhandled wrmsr: 0x40000007 data 0x15c4 [ 78.389898][T10433] kasan: CONFIG_KASAN_INLINE enabled [ 78.395448][T10433] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 78.403546][T10433] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 78.410514][T10433] CPU: 1 PID: 10433 Comm: syz-executor493 Not tainted 5.3.0-rc7+ #0 [ 78.418555][T10433] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 78.428604][T10433] RIP: 0010:__apic_accept_irq+0x46/0xbc0 [ 78.434220][T10433] 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 [ 78.453801][T10433] RSP: 0018:ffff88808c827820 EFLAGS: 00010202 [ 78.459842][T10433] RAX: dffffc0000000000 RBX: ffff88808c827958 RCX: 0000000000000000 [ 78.467792][T10433] RDX: 0000000000000013 RSI: ffffffff811599ba RDI: 0000000000000000 [ 78.475741][T10433] RBP: ffff88808c827878 R08: 0000000000000000 R09: 0000000000000000 [ 78.483702][T10433] R10: fffff52000be9070 R11: ffffc90005f48383 R12: 0000000000000000 [ 78.491843][T10433] R13: 0000000000000000 R14: 0000000000000000 R15: ffff8880a3f0aff0 [ 78.499803][T10433] FS: 0000555555f2e880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 78.508717][T10433] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 78.515293][T10433] CR2: 0000000000000000 CR3: 00000000946b9000 CR4: 00000000001426e0 [ 78.523253][T10433] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 78.531262][T10433] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 78.539222][T10433] Call Trace: [ 78.542502][T10433] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 78.548725][T10433] kvm_apic_set_irq+0x10b/0x170 [ 78.553642][T10433] kvm_hv_process_stimers+0xd55/0x1a10 [ 78.559082][T10433] ? kvm_hv_irq_routing_update+0x410/0x410 [ 78.564865][T10433] ? lock_acquire+0x190/0x410 [ 78.569521][T10433] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 78.575738][T10433] ? __kasan_check_write+0x14/0x20 [ 78.580990][T10433] vcpu_enter_guest+0x4d2/0x5e90 [ 78.585988][T10433] ? mark_held_locks+0xf0/0xf0 [ 78.590737][T10433] ? kvm_vcpu_ioctl+0x181/0xfd0 [ 78.595576][T10433] ? handle_emulation_failure+0x4e0/0x4e0 [ 78.601281][T10433] ? lock_acquire+0x190/0x410 [ 78.605956][T10433] ? kvm_check_async_pf_completion+0x2d8/0x440 [ 78.612090][T10433] kvm_arch_vcpu_ioctl_run+0x464/0x1750 [ 78.617614][T10433] ? kvm_arch_vcpu_ioctl_run+0x464/0x1750 [ 78.623313][T10433] kvm_vcpu_ioctl+0x4dc/0xfd0 [ 78.627977][T10433] ? kvm_write_guest_cached+0x40/0x40 [ 78.633330][T10433] ? tomoyo_path_number_perm+0x263/0x520 [ 78.638944][T10433] ? tomoyo_execute_permission+0x4a0/0x4a0 [ 78.644841][T10433] ? put_unused_fd+0x62/0x80 [ 78.649430][T10433] ? rwlock_bug.part.0+0x90/0x90 [ 78.654474][T10433] ? put_unused_fd+0x4f/0x80 [ 78.659181][T10433] ? kvm_write_guest_cached+0x40/0x40 [ 78.664580][T10433] do_vfs_ioctl+0xdb6/0x13e0 [ 78.669155][T10433] ? ioctl_preallocate+0x210/0x210 [ 78.674686][T10433] ? selinux_file_mprotect+0x620/0x620 [ 78.680123][T10433] ? __fget_light+0x1a9/0x230 [ 78.684788][T10433] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 78.691192][T10433] ? tomoyo_file_ioctl+0x23/0x30 [ 78.696107][T10433] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 78.702453][T10433] ? security_file_ioctl+0x8d/0xc0 [ 78.707564][T10433] ksys_ioctl+0xab/0xd0 [ 78.711703][T10433] __x64_sys_ioctl+0x73/0xb0 [ 78.716386][T10433] do_syscall_64+0xfd/0x6a0 [ 78.720901][T10433] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 78.726782][T10433] RIP: 0033:0x442a19 [ 78.730676][T10433] 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 [ 78.750283][T10433] RSP: 002b:00007fffa17e0a08 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 78.758686][T10433] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000442a19 [ 78.766655][T10433] RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000005 [ 78.774645][T10433] RBP: 00000000006cd018 R08: 00000000004002c8 R09: 00000000004002c8 [ 78.782842][T10433] R10: 00000000004002c8 R11: 0000000000000246 R12: 0000000000403ac0 [ 78.790800][T10433] R13: 0000000000403b50 R14: 0000000000000000 R15: 0000000000000000 [ 78.798759][T10433] Modules linked in: [ 78.803810][T10433] ---[ end trace 400b0af08ddf1534 ]--- [ 78.809404][T10433] RIP: 0010:__apic_accept_irq+0x46/0xbc0 [ 78.815128][T10433] 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 [ 78.834901][T10433] RSP: 0018:ffff88808c827820 EFLAGS: 00010202 [ 78.840952][T10433] RAX: dffffc0000000000 RBX: ffff88808c827958 RCX: 0000000000000000 [ 78.848961][T10433] RDX: 0000000000000013 RSI: ffffffff811599ba RDI: 0000000000000000 [ 78.856953][T10433] RBP: ffff88808c827878 R08: 0000000000000000 R09: 0000000000000000 [ 78.864956][T10433] R10: fffff52000be9070 R11: ffffc90005f48383 R12: 0000000000000000 [ 78.872934][T10433] R13: 0000000000000000 R14: 0000000000000000 R15: ffff8880a3f0aff0 [ 78.880983][T10433] FS: 0000555555f2e880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 78.890030][T10433] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 78.896624][T10433] CR2: 0000000020bf7000 CR3: 00000000946b9000 CR4: 00000000001426f0 [ 78.904779][T10433] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 78.912862][T10433] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 78.920876][T10433] Kernel panic - not syncing: Fatal exception [ 78.928553][T10433] Kernel Offset: disabled [ 78.932897][T10433] Rebooting in 86400 seconds..