[?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. [ 13.032492] audit: type=1400 audit(1513627604.507:6): avc: denied { map } for pid=3133 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 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added 'ci-upstream-kasan-gce-0,10.128.15.233' (ECDSA) to the list of known hosts. syzkaller login: [ 19.142356] audit: type=1400 audit(1513627610.617:7): avc: denied { map } for pid=3147 comm="syz-execprog" path="/root/syz-execprog" dev="sda1" ino=16479 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 2017/12/18 20:06:50 parsed 1 programs 2017/12/18 20:06:50 executed programs: 0 [ 19.258844] audit: type=1400 audit(1513627610.733:8): avc: denied { map } for pid=3147 comm="syz-execprog" path="/root/syzkaller-shm116183461" dev="sda1" ino=16482 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:file_t:s0 tclass=file permissive=1 [ 19.292414] audit: type=1400 audit(1513627610.767:10): avc: denied { sys_admin } for pid=3154 comm="syz-executor4" 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 [ 19.318252] audit: type=1400 audit(1513627610.767:9): avc: denied { sys_admin } for pid=3152 comm="syz-executor3" 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 [ 19.397359] audit: type=1400 audit(1513627610.872:11): avc: denied { sys_chroot } for pid=3156 comm="syz-executor3" 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 [ 19.436303] kvm: KVM_SET_TSS_ADDR need to be called before entering vcpu 2017/12/18 20:06:55 executed programs: 348 2017/12/18 20:07:00 executed programs: 712 result: failed=false hanged=false err=executor 7: failed: invalid command number 7887609648979993647 (errno 110) child failed (errno 1) loop failed (errno 0) invalid command number 7887609648979993647 (errno 110) child failed (errno 1) loop failed (errno 0) [ 31.212561] kasan: CONFIG_KASAN_INLINE enabled [ 31.217211] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 31.224551] general protection fault: 0000 [#1] SMP KASAN [ 31.230061] Dumping ftrace buffer: [ 31.233573] (ftrace buffer empty) [ 31.237257] Modules linked in: [ 31.240429] CPU: 0 PID: 6188 Comm: syz-executor5 Not tainted 4.15.0-rc4+ #227 [ 31.247672] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.257007] RIP: 0010:native_write_cr4+0x4/0x10 [ 31.261647] RSP: 0018:ffff8801d4817058 EFLAGS: 00010093 [ 31.266987] RAX: ffff8801d63ea300 RBX: 00000000001606f0 RCX: ffffffff811a2a92 [ 31.274241] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000001606f0 [ 31.281487] RBP: ffff8801d4817058 R08: 1ffff1003a902d67 R09: 0000000000000004 [ 31.288731] R10: ffff8801d4816fc8 R11: 0000000000000004 R12: 0000000000000093 [ 31.295974] R13: ffff8801d63ea300 R14: ffff8801db414850 R15: ffff8801db414850 [ 31.303224] FS: 00007f4912349700(0000) GS:ffff8801db400000(0000) knlGS:0000000000000000 [ 31.311432] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 31.317306] CR2: 00007f4b95268000 CR3: 0000000005e22001 CR4: 00000000001626f0 [ 31.324561] Call Trace: [ 31.327132] hardware_disable+0x34a/0x4b0 [ 31.331267] ? kvm_io_bus_get_dev+0x2a0/0x2a0 [ 31.335743] kvm_arch_hardware_disable+0x35/0xd0 [ 31.340489] ? kvm_io_bus_get_dev+0x2a0/0x2a0 [ 31.344967] hardware_disable_nolock+0x30/0x40 [ 31.349531] on_each_cpu+0xca/0x1b0 [ 31.353143] hardware_disable_all_nolock+0x3e/0x50 [ 31.358053] kvm_put_kvm+0x956/0xdf0 [ 31.361753] ? kvm_clear_guest+0xb0/0xb0 [ 31.365796] ? kvm_irqfd_release+0xd1/0x120 [ 31.370094] ? lock_downgrade+0x980/0x980 [ 31.374233] ? _raw_spin_unlock_irq+0x27/0x70 [ 31.378713] ? kvm_irqfd_release+0xdd/0x120 [ 31.383011] ? kvm_irqfd_release+0xdd/0x120 [ 31.387310] ? kvm_put_kvm+0xdf0/0xdf0 [ 31.391172] kvm_vm_release+0x42/0x50 [ 31.394953] __fput+0x327/0x7e0 [ 31.398214] ? fput+0x140/0x140 [ 31.401475] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 31.407334] ? _raw_spin_unlock_irq+0x27/0x70 [ 31.411815] ____fput+0x15/0x20 [ 31.415074] task_work_run+0x199/0x270 [ 31.418941] ? task_work_cancel+0x210/0x210 [ 31.423239] ? _raw_spin_unlock+0x22/0x30 [ 31.427365] ? switch_task_namespaces+0x87/0xc0 [ 31.432013] do_exit+0x9bb/0x1ad0 [ 31.435445] ? check_noncircular+0x20/0x20 [ 31.439662] ? mm_update_next_owner+0x930/0x930 [ 31.444309] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 31.449479] ? __might_sleep+0x95/0x190 [ 31.453434] ? find_held_lock+0x35/0x1d0 [ 31.457482] ? futex_wait+0x402/0x990 [ 31.461260] ? lock_downgrade+0x980/0x980 [ 31.465386] ? __unqueue_futex+0x1c0/0x290 [ 31.469596] ? lock_release+0xa40/0xa40 [ 31.473554] ? fault_in_user_writeable+0x90/0x90 [ 31.478294] ? do_raw_spin_trylock+0x190/0x190 [ 31.482861] ? check_noncircular+0x20/0x20 [ 31.487083] ? drop_futex_key_refs.isra.13+0x63/0xb0 [ 31.492171] ? futex_wait+0x69e/0x990 [ 31.495964] ? find_held_lock+0x35/0x1d0 [ 31.500016] ? get_signal+0x7ae/0x16c0 [ 31.503888] ? lock_downgrade+0x980/0x980 [ 31.508029] do_group_exit+0x149/0x400 [ 31.511904] ? do_raw_spin_trylock+0x190/0x190 [ 31.516469] ? SyS_exit+0x30/0x30 [ 31.519906] ? _raw_spin_unlock_irq+0x27/0x70 [ 31.524387] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 31.529393] get_signal+0x73f/0x16c0 [ 31.533100] ? ptrace_notify+0x130/0x130 [ 31.537154] ? exit_robust_list+0x240/0x240 [ 31.541459] ? find_held_lock+0x35/0x1d0 [ 31.545511] ? __fget+0x333/0x570 [ 31.548948] ? lock_downgrade+0x980/0x980 [ 31.553087] do_signal+0x94/0x1ee0 [ 31.556613] ? __lock_is_held+0xb6/0x140 [ 31.560663] ? setup_sigcontext+0x7d0/0x7d0 [ 31.564973] ? __fget+0x35c/0x570 [ 31.568414] ? iterate_fd+0x3f0/0x3f0 [ 31.572197] ? fget_raw+0x20/0x20 [ 31.575637] ? __do_page_fault+0x3d6/0xc90 [ 31.579862] ? exit_to_usermode_loop+0x8c/0x310 [ 31.584521] exit_to_usermode_loop+0x214/0x310 [ 31.589087] ? ioctl_preallocate+0x2b0/0x2b0 [ 31.593482] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 31.599003] ? selinux_capable+0x40/0x40 [ 31.603056] syscall_return_slowpath+0x490/0x550 [ 31.607796] ? prepare_exit_to_usermode+0x340/0x340 [ 31.612800] ? entry_SYSCALL_64_fastpath+0x69/0x96 [ 31.617711] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 31.622709] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 31.627457] entry_SYSCALL_64_fastpath+0x94/0x96 [ 31.632189] RIP: 0033:0x452a09 [ 31.635358] RSP: 002b:00007f4912348ce8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 31.643046] RAX: fffffffffffffe00 RBX: 000000000071bf80 RCX: 0000000000452a09 [ 31.650294] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 000000000071bf80 [ 31.657543] RBP: 000000000071bf80 R08: 0000000000000000 R09: 000000000071bf58 [ 31.664796] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 31.672048] R13: 0000000000a2f7ff R14: 00007f49123499c0 R15: 0000000000000002 [ 31.679312] Code: 0f 1f 80 00 00 00 00 55 48 89 e5 0f 20 d8 5d c3 0f 1f 80 00 00 00 00 55 48 89 e5 0f 22 df 5d c3 0f 1f 80 00 00 00 00 55 48 89 e5 <0f> 22 e7 5d c3 0f 1f 80 00 00 00 00 55 48 89 e5 44 0f 20 c0 5d [ 31.698480] RIP: native_write_cr4+0x4/0x10 RSP: ffff8801d4817058 [ 31.704608] ---[ end trace b9d29e7d2721195c ]--- [ 31.709344] Kernel panic - not syncing: Fatal exception [ 31.715113] Dumping ftrace buffer: [ 31.718626] (ftrace buffer empty) [ 31.722301] Kernel Offset: disabled [ 31.725893] Rebooting in 86400 seconds..