[ 59.633464][ T26] audit: type=1800 audit(1560752338.766:30): pid=8956 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 syzkaller login: [ 63.098706][ T26] kauditd_printk_skb: 4 callbacks suppressed [ 63.098720][ T26] audit: type=1400 audit(1560752342.286:35): avc: denied { map } for pid=9134 comm="bash" path="/bin/bash" dev="sda1" ino=1457 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 Warning: Permanently added '10.128.1.28' (ECDSA) to the list of known hosts. executing program [ 69.560451][ T26] audit: type=1400 audit(1560752348.746:36): avc: denied { map } for pid=9146 comm="syz-executor056" path="/root/syz-executor056966311" dev="sda1" ino=16484 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 69.589027][ T9147] 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. [ 69.874927][ T9148] WARNING: CPU: 0 PID: 9148 at arch/x86/kvm/x86.c:8302 kvm_arch_vcpu_ioctl_run+0x1d8/0x1740 [ 69.885190][ T9148] Kernel panic - not syncing: panic_on_warn set ... [ 69.891757][ T9148] CPU: 0 PID: 9148 Comm: syz-executor056 Not tainted 5.2.0-rc4+ #27 [ 69.899705][ T9148] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 69.909738][ T9148] Call Trace: [ 69.913015][ T9148] dump_stack+0x172/0x1f0 [ 69.917327][ T9148] ? kvm_arch_vcpu_ioctl_run+0x120/0x1740 [ 69.923066][ T9148] panic+0x2cb/0x744 [ 69.926945][ T9148] ? __warn_printk+0xf3/0xf3 [ 69.931526][ T9148] ? kvm_arch_vcpu_ioctl_run+0x1d8/0x1740 [ 69.937233][ T9148] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 69.943453][ T9148] ? __warn.cold+0x5/0x4d [ 69.947758][ T9148] ? __warn+0xe8/0x1d0 [ 69.951805][ T9148] ? kvm_arch_vcpu_ioctl_run+0x1d8/0x1740 [ 69.957537][ T9148] __warn.cold+0x20/0x4d [ 69.961762][ T9148] ? handle_ept_misconfig+0x3e0/0x3e0 [ 69.967121][ T9148] ? kvm_arch_vcpu_ioctl_run+0x1d8/0x1740 [ 69.972829][ T9148] report_bug+0x263/0x2b0 [ 69.977140][ T9148] do_error_trap+0x11b/0x200 [ 69.981709][ T9148] do_invalid_op+0x37/0x50 [ 69.986102][ T9148] ? kvm_arch_vcpu_ioctl_run+0x1d8/0x1740 [ 69.991816][ T9148] invalid_op+0x14/0x20 [ 69.999103][ T9148] RIP: 0010:kvm_arch_vcpu_ioctl_run+0x1d8/0x1740 [ 70.005409][ T9148] Code: 80 3c 02 00 0f 85 09 14 00 00 49 8b 9c 24 18 0d 00 00 31 ff 48 89 de e8 56 93 62 00 48 85 db 0f 84 77 0c 00 00 e8 a8 91 62 00 <0f> 0b e8 a1 91 62 00 49 8d 7e 01 48 b8 00 00 00 00 00 fc ff df 48 [ 70.024989][ T9148] RSP: 0018:ffff888099547b30 EFLAGS: 00010293 [ 70.031029][ T9148] RAX: ffff8880850fc040 RBX: 0000000000000001 RCX: ffffffff810e3c69 [ 70.038999][ T9148] RDX: 0000000000000000 RSI: ffffffff810e2fb8 RDI: 0000000000000005 [ 70.046974][ T9148] RBP: ffff888099547b98 R08: ffff8880850fc040 R09: ffffed1015d06be0 [ 70.054926][ T9148] R10: ffffed1015d06bdf R11: ffff8880ae835efb R12: ffff888099638040 [ 70.062893][ T9148] R13: 0000000000000000 R14: ffff8880a7f39000 R15: ffff888096e8b980 [ 70.070870][ T9148] ? kvm_arch_vcpu_ioctl_run+0xe89/0x1740 [ 70.076570][ T9148] ? kvm_arch_vcpu_ioctl_run+0x1d8/0x1740 [ 70.082274][ T9148] ? put_pid_ns+0x69/0xe0 [ 70.086584][ T9148] kvm_vcpu_ioctl+0x4dc/0xf90 [ 70.091838][ T9148] ? kvm_set_memory_region+0x50/0x50 [ 70.097127][ T9148] ? tomoyo_path_number_perm+0x263/0x520 [ 70.102761][ T9148] ? tomoyo_execute_permission+0x4a0/0x4a0 [ 70.108554][ T9148] ? __fget+0x35a/0x550 [ 70.112691][ T9148] ? kvm_set_memory_region+0x50/0x50 [ 70.117957][ T9148] do_vfs_ioctl+0xd5f/0x1380 [ 70.122526][ T9148] ? ioctl_preallocate+0x210/0x210 [ 70.127616][ T9148] ? selinux_file_mprotect+0x620/0x620 [ 70.133049][ T9148] ? __fget+0x381/0x550 [ 70.137189][ T9148] ? ksys_dup3+0x3e0/0x3e0 [ 70.141585][ T9148] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 70.147801][ T9148] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 70.154022][ T9148] ? tomoyo_file_ioctl+0x23/0x30 [ 70.158940][ T9148] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 70.165155][ T9148] ? security_file_ioctl+0x8d/0xc0 [ 70.170247][ T9148] ksys_ioctl+0xab/0xd0 [ 70.174382][ T9148] __x64_sys_ioctl+0x73/0xb0 [ 70.178957][ T9148] do_syscall_64+0xfd/0x680 [ 70.183447][ T9148] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 70.189341][ T9148] RIP: 0033:0x448cb9 [ 70.193221][ T9148] Code: e8 8c b0 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 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 4b 0a fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 70.212819][ T9148] RSP: 002b:00007fc9d2fa6ce8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 70.221215][ T9148] RAX: ffffffffffffffda RBX: 00000000006ddc58 RCX: 0000000000448cb9 [ 70.229188][ T9148] RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000005 [ 70.237160][ T9148] RBP: 00000000006ddc50 R08: 00007fc9d2fa7700 R09: 0000000000000000 [ 70.245127][ T9148] R10: 00007fc9d2fa7700 R11: 0000000000000246 R12: 00000000006ddc5c [ 70.253076][ T9148] R13: 00007ffec723329f R14: 00007fc9d2fa79c0 R15: 20c49ba5e353f7cf [ 70.262277][ T9148] Kernel Offset: disabled [ 70.266686][ T9148] Rebooting in 86400 seconds..