[....] Starting enhanced syslogd: rsyslogd[ 12.970635] audit: type=1400 audit(1512736085.499:5): avc: denied { syslog } for pid=2990 comm="rsyslogd" capability=34 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=capability2 permissive=1 [?25l[?1c7[ ok 8[?25h[?0c. [....] 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: [ 34.024509] audit: type=1400 audit(1512736106.553:6): avc: denied { map } for pid=3135 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 'ci-upstream-mmots-kasan-gce-3,10.128.0.48' (ECDSA) to the list of known hosts. [ 40.189222] audit: type=1400 audit(1512736112.718:7): avc: denied { map } for pid=3147 comm="syzkaller776105" path="/root/syzkaller776105778" dev="sda1" ino=16481 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 executing program [ 40.215621] audit: type=1400 audit(1512736112.721:8): avc: denied { sys_admin } for pid=3147 comm="syzkaller776105" capability=21 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=cap_userns permissive=1 [ 40.249535] audit: type=1400 audit(1512736112.778:9): avc: denied { sys_chroot } for pid=3148 comm="syzkaller776105" capability=18 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=cap_userns permissive=1 [ 40.310375] kvm: KVM_SET_TSS_ADDR need to be called before entering vcpu executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 43.872118] WARNING: CPU: 1 PID: 3598 at arch/x86/kvm/x86.c:7295 kvm_arch_vcpu_ioctl_run+0x1d4/0x5be0 [ 43.881514] Kernel panic - not syncing: panic_on_warn set ... [ 43.881514] [ 43.888855] CPU: 1 PID: 3598 Comm: syzkaller776105 Not tainted 4.15.0-rc2-mm1+ #39 [ 43.896533] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 43.905877] Call Trace: [ 43.908499] dump_stack+0x194/0x257 [ 43.912117] ? arch_local_irq_restore+0x53/0x53 [ 43.916767] ? vsnprintf+0x1ed/0x1900 [ 43.920546] panic+0x1e4/0x41c [ 43.923712] ? refcount_error_report+0x214/0x214 [ 43.928440] ? show_regs_print_info+0x18/0x18 [ 43.932932] ? __warn+0x1c1/0x200 [ 43.936369] ? kvm_arch_vcpu_ioctl_run+0x1d4/0x5be0 [ 43.941359] __warn+0x1dc/0x200 [ 43.944617] ? kvm_arch_vcpu_ioctl_run+0x1d4/0x5be0 [ 43.949611] report_bug+0x211/0x2d0 [ 43.953217] fixup_bug.part.11+0x37/0x80 [ 43.957263] do_error_trap+0x2d7/0x3e0 [ 43.961121] ? lock_downgrade+0x980/0x980 [ 43.965244] ? math_error+0x400/0x400 [ 43.969020] ? __lock_is_held+0xbc/0x140 [ 43.973064] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 43.977887] do_invalid_op+0x1b/0x20 [ 43.981587] invalid_op+0x22/0x40 [ 43.985014] RIP: 0010:kvm_arch_vcpu_ioctl_run+0x1d4/0x5be0 [ 43.990607] RSP: 0018:ffff8801cd5ff6b0 EFLAGS: 00010293 [ 43.995945] RAX: ffff8801cf808200 RBX: ffff8801cb1c8000 RCX: ffffffff810dee44 [ 44.003188] RDX: 0000000000000000 RSI: ffffffff863449c0 RDI: ffff8801cb768ef8 [ 44.010432] RBP: ffff8801cd5ffa40 R08: 1ffff10039abfeff R09: 0000000000000001 [ 44.017675] R10: ffff8801cd5ffa58 R11: 0000000000000000 R12: 0000000000000000 [ 44.024917] R13: 1ffff10039abff72 R14: ffff8801d230c280 R15: ffff8801cb768cc0 [ 44.032184] ? kvm_arch_vcpu_ioctl_run+0x1d4/0x5be0 [ 44.037190] ? put_pid+0x176/0x1f0 [ 44.040704] ? save_stack+0xa3/0xd0 [ 44.044306] ? kmem_cache_free+0x77/0x280 [ 44.048426] ? put_pid+0x176/0x1f0 [ 44.051946] ? kvm_vcpu_ioctl+0xd75/0x1010 [ 44.056157] ? kvm_arch_vcpu_runnable+0x560/0x560 [ 44.061071] ? __init_waitqueue_head+0x97/0x140 [ 44.065716] ? wake_up_q+0xe0/0xe0 [ 44.069234] ? __lockdep_init_map+0xe4/0x650 [ 44.073617] ? check_noncircular+0x20/0x20 [ 44.077837] ? print_usage_bug+0x3f0/0x3f0 [ 44.082048] ? __wait_rcu_gp+0x25d/0x420 [ 44.086082] ? rcu_gp_is_normal+0x140/0x140 [ 44.090393] ? refcount_sub_and_test+0x115/0x1b0 [ 44.095152] ? refcount_inc+0x50/0x50 [ 44.098938] ? put_pid+0x176/0x1f0 [ 44.102456] ? refcount_dec_and_test+0x1a/0x20 [ 44.107011] ? put_pid_ns+0xa6/0xc0 [ 44.110613] ? put_pid+0x183/0x1f0 [ 44.114125] ? task_active_pid_ns+0xd0/0xd0 [ 44.118421] ? __might_sleep+0x95/0x190 [ 44.122396] kvm_vcpu_ioctl+0x64c/0x1010 [ 44.126434] ? kvm_vcpu_ioctl+0x64c/0x1010 [ 44.130647] ? __kvm_gfn_to_hva_cache_init+0xbb0/0xbb0 [ 44.135907] ? find_held_lock+0x39/0x1d0 [ 44.139965] ? lock_downgrade+0x980/0x980 [ 44.144092] ? __fget+0xbb/0x580 [ 44.147438] ? lock_release+0xda0/0xda0 [ 44.151389] ? __lock_is_held+0xbc/0x140 [ 44.155434] ? __fget+0x362/0x580 [ 44.158869] ? iterate_fd+0x3f0/0x3f0 [ 44.162652] ? lock_downgrade+0x980/0x980 [ 44.166776] ? lock_acquire+0x1d5/0x580 [ 44.170726] ? __kvm_gfn_to_hva_cache_init+0xbb0/0xbb0 [ 44.175988] do_vfs_ioctl+0x1b1/0x1530 [ 44.179854] ? ioctl_preallocate+0x2b0/0x2b0 [ 44.184239] ? selinux_capable+0x40/0x40 [ 44.188273] ? check_prev_add+0xe20/0x15f0 [ 44.192484] ? lockdep_sys_exit+0x47/0xf0 [ 44.196614] ? syscall_return_slowpath+0x2ad/0x550 [ 44.201529] ? security_file_ioctl+0x89/0xb0 [ 44.205930] SyS_ioctl+0x8f/0xc0 [ 44.209290] entry_SYSCALL_64_fastpath+0x1f/0x96 [ 44.214019] RIP: 0033:0x44ad69 [ 44.217356] RSP: 002b:00007fa2a6c74d08 EFLAGS: 00000202 ORIG_RAX: 0000000000000010 [ 44.225037] RAX: ffffffffffffffda RBX: 00007fa2a6c75700 RCX: 000000000044ad69 [ 44.232278] RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000005 [ 44.239528] RBP: 00000000007ffd40 R08: 00007fa2a6c75700 R09: 00007fa2a6c75700 [ 44.246771] R10: 00007fa2a6c75700 R11: 0000000000000202 R12: 0000000000000000 [ 44.254013] R13: 00000000007ffd3f R14: 00007fa2a6c759c0 R15: 0000000000000000 [ 44.261899] Dumping ftrace buffer: [ 44.265489] (ftrace buffer empty) [ 44.269173] Kernel Offset: disabled [ 44.272780] Rebooting in 86400 seconds..