[ 71.257676][ T26] audit: type=1800 audit(1568595921.348:31): pid=10101 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 71.393754][ T26] audit: type=1800 audit(1568595921.538:32): pid=10101 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 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 '10.128.0.176' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 81.276628][ T26] kauditd_printk_skb: 3 callbacks suppressed [ 81.276643][ T26] audit: type=1400 audit(1568595931.418:36): avc: denied { map } for pid=10291 comm="syz-executor266" path="/root/syz-executor266305310" 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 [ 81.280318][T10291] 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. [ 81.359802][T10291] ------------[ cut here ]------------ [ 81.365630][T10291] WARNING: CPU: 1 PID: 10291 at arch/x86/kvm/vmx/vmx.c:4678 handle_desc.cold+0x11/0x18 [ 81.375338][T10291] Kernel panic - not syncing: panic_on_warn set ... [ 81.381909][T10291] CPU: 1 PID: 10291 Comm: syz-executor266 Not tainted 5.3.0-rc8+ #0 [ 81.390043][T10291] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 81.400098][T10291] Call Trace: [ 81.403415][T10291] dump_stack+0x172/0x1f0 [ 81.407822][T10291] ? free_kvm_area+0xa5/0x14d [ 81.412489][T10291] panic+0x2dc/0x755 [ 81.416362][T10291] ? add_taint.cold+0x16/0x16 [ 81.421146][T10291] ? __kasan_check_write+0x14/0x20 [ 81.426371][T10291] ? __warn.cold+0x5/0x4c [ 81.430868][T10291] ? __warn+0xe7/0x1e0 [ 81.434980][T10291] ? handle_desc.cold+0x11/0x18 [ 81.439931][T10291] __warn.cold+0x20/0x4c [ 81.444165][T10291] ? wake_up_klogd+0x99/0xd0 [ 81.448745][T10291] ? handle_desc.cold+0x11/0x18 [ 81.453667][T10291] report_bug+0x263/0x2b0 [ 81.457981][T10291] do_error_trap+0x11b/0x200 [ 81.462552][T10291] do_invalid_op+0x37/0x50 [ 81.466945][T10291] ? handle_desc.cold+0x11/0x18 [ 81.471773][T10291] invalid_op+0x23/0x30 [ 81.475907][T10291] RIP: 0010:handle_desc.cold+0x11/0x18 [ 81.481344][T10291] Code: 00 48 c7 c7 20 e7 83 87 c6 05 f1 e6 85 08 01 e8 a7 64 40 00 e9 a5 42 fd ff e8 19 c5 56 00 48 c7 c7 80 e7 83 87 e8 91 64 40 00 <0f> 0b e9 75 44 fd ff e8 01 c5 56 00 89 de 48 c7 c7 e0 e7 83 87 c6 [ 81.501575][T10291] RSP: 0018:ffff888084d279a0 EFLAGS: 00010282 [ 81.507754][T10291] RAX: 0000000000000024 RBX: 0000000000000000 RCX: 0000000000000000 [ 81.515716][T10291] RDX: 0000000000000000 RSI: ffffffff815c36d6 RDI: ffffed10109a4f26 [ 81.523762][T10291] RBP: ffff888084d279b0 R08: 0000000000000024 R09: ffffed1015d260d1 [ 81.531858][T10291] R10: ffffed1015d260d0 R11: ffff8880ae930687 R12: ffff8880885f8040 [ 81.540888][T10291] R13: 000000000000002f R14: ffff8880885fbc0c R15: ffff8880885f8070 [ 81.548863][T10291] ? vprintk_func+0x86/0x189 [ 81.553527][T10291] ? handle_wbinvd+0x20/0x20 [ 81.558097][T10291] vmx_handle_exit+0x299/0x15e0 [ 81.562926][T10291] vcpu_enter_guest+0x1087/0x5e90 [ 81.569406][T10291] ? handle_emulation_failure+0x4e0/0x4e0 [ 81.575105][T10291] ? lock_acquire+0x190/0x410 [ 81.579947][T10291] ? kvm_check_async_pf_completion+0x2d8/0x440 [ 81.586188][T10291] kvm_arch_vcpu_ioctl_run+0x464/0x1750 [ 81.591725][T10291] ? kvm_arch_vcpu_ioctl_run+0x464/0x1750 [ 81.597613][T10291] kvm_vcpu_ioctl+0x4dc/0xfd0 [ 81.602293][T10291] ? kvm_write_guest_cached+0x40/0x40 [ 81.607666][T10291] ? tomoyo_path_number_perm+0x263/0x520 [ 81.613621][T10291] ? tomoyo_execute_permission+0x4a0/0x4a0 [ 81.619579][T10291] ? filename_lookup+0x294/0x410 [ 81.624582][T10291] ? page_to_nid.part.0+0x20/0x20 [ 81.629713][T10291] ? kvm_write_guest_cached+0x40/0x40 [ 81.635063][T10291] do_vfs_ioctl+0xdb6/0x13e0 [ 81.639899][T10291] ? ioctl_preallocate+0x210/0x210 [ 81.645266][T10291] ? selinux_file_mprotect+0x620/0x620 [ 81.650814][T10291] ? user_path_at_empty+0x43/0x50 [ 81.656019][T10291] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 81.662885][T10291] ? tomoyo_file_ioctl+0x23/0x30 [ 81.668183][T10291] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 81.674513][T10291] ? security_file_ioctl+0x8d/0xc0 [ 81.679694][T10291] ksys_ioctl+0xab/0xd0 [ 81.683918][T10291] __x64_sys_ioctl+0x73/0xb0 [ 81.688510][T10291] do_syscall_64+0xfd/0x6a0 [ 81.693019][T10291] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 81.698906][T10291] RIP: 0033:0x443819 [ 81.702798][T10291] 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 [ 81.722480][T10291] RSP: 002b:00007ffcfc15d8b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 81.731245][T10291] RAX: ffffffffffffffda RBX: 00007ffcfc15d8c0 RCX: 0000000000443819 [ 81.739209][T10291] RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000006 [ 81.747191][T10291] RBP: 0000000000000000 R08: 00000000004010a0 R09: 00000000004010a0 [ 81.755141][T10291] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004048c0 [ 81.763177][T10291] R13: 0000000000404950 R14: 0000000000000000 R15: 0000000000000000 [ 81.772922][T10291] Kernel Offset: disabled [ 81.777353][T10291] Rebooting in 86400 seconds..