[?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. [ 12.120885] audit: type=1400 audit(1513423566.802:6): avc: denied { map } for pid=3125 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-6,10.128.0.56' (ECDSA) to the list of known hosts. syzkaller login: [ 18.235513] audit: type=1400 audit(1513423572.917:7): avc: denied { map } for pid=3139 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 2017/12/16 11:26:13 parsed 1 programs 2017/12/16 11:26:13 executed programs: 0 [ 18.717820] audit: type=1400 audit(1513423573.398:8): avc: denied { map } for pid=3139 comm="syz-execprog" path="/root/syzkaller-shm106154988" 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 [ 18.795406] kvm: KVM_SET_TSS_ADDR need to be called before entering vcpu 2017/12/16 11:26:18 executed programs: 249 result: failed=false hanged=false err=executor 0: failed: invalid command number 13622315181289262 (errno 110) child failed (errno 1) loop failed (errno 0) invalid command number 13622315181289262 (errno 110) child failed (errno 1) loop failed (errno 0) result: failed=false hanged=false err=executor 6: failed: invalid command number 13622315181289262 (errno 110) child failed (errno 1) loop failed (errno 0) invalid command number 13622315181289262 (errno 110) child failed (errno 1) loop failed (errno 0) [ 27.660151] kasan: CONFIG_KASAN_INLINE enabled [ 27.664780] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 27.672122] general protection fault: 0000 [#1] SMP KASAN [ 27.677634] Dumping ftrace buffer: [ 27.681144] (ftrace buffer empty) [ 27.684826] Modules linked in: [ 27.687996] CPU: 0 PID: 4864 Comm: syz-executor1 Not tainted 4.15.0-rc3+ #224 [ 27.695242] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 27.704578] RIP: 0010:native_write_cr4+0x4/0x10 [ 27.709216] RSP: 0018:ffff8801c4a5f058 EFLAGS: 00010093 [ 27.714556] RAX: ffff8801ca1200c0 RBX: 00000000001606f0 RCX: ffffffff811a2a92 [ 27.721801] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000001606f0 [ 27.729043] RBP: ffff8801c4a5f058 R08: 1ffff1003894bd67 R09: 0000000000000004 [ 27.736286] R10: ffff8801c4a5efc8 R11: 0000000000000004 R12: 0000000000000093 [ 27.743533] R13: ffff8801ca1200c0 R14: ffff8801db414850 R15: ffff8801db414850 [ 27.750777] FS: 00007fc90dc6e700(0000) GS:ffff8801db400000(0000) knlGS:0000000000000000 [ 27.758978] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 27.764834] CR2: 00007f22b305b000 CR3: 0000000005e22002 CR4: 00000000001626f0 [ 27.772084] Call Trace: [ 27.774658] hardware_disable+0x34a/0x4b0 [ 27.778789] ? kvm_io_bus_get_dev+0x2a0/0x2a0 [ 27.783274] kvm_arch_hardware_disable+0x35/0xd0 [ 27.788003] ? kvm_io_bus_get_dev+0x2a0/0x2a0 [ 27.792474] hardware_disable_nolock+0x30/0x40 [ 27.797030] on_each_cpu+0xca/0x1b0 [ 27.800633] hardware_disable_all_nolock+0x3e/0x50 [ 27.805536] kvm_put_kvm+0x956/0xdf0 [ 27.809236] ? kvm_clear_guest+0xb0/0xb0 [ 27.813275] ? kvm_irqfd_release+0xd1/0x120 [ 27.817574] ? lock_downgrade+0x980/0x980 [ 27.821709] ? _raw_spin_unlock_irq+0x27/0x70 [ 27.826185] ? kvm_irqfd_release+0xdd/0x120 [ 27.830482] ? kvm_irqfd_release+0xdd/0x120 [ 27.834782] ? kvm_put_kvm+0xdf0/0xdf0 [ 27.838643] kvm_vm_release+0x42/0x50 [ 27.842420] __fput+0x327/0x7e0 [ 27.845678] ? fput+0x140/0x140 [ 27.848939] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 27.854799] ? _raw_spin_unlock_irq+0x27/0x70 [ 27.859275] ____fput+0x15/0x20 [ 27.862530] task_work_run+0x199/0x270 [ 27.866396] ? task_work_cancel+0x210/0x210 [ 27.870701] ? _raw_spin_unlock+0x22/0x30 [ 27.874825] ? switch_task_namespaces+0x87/0xc0 [ 27.879471] do_exit+0x9bb/0x1ad0 [ 27.882899] ? check_noncircular+0x20/0x20 [ 27.887114] ? mm_update_next_owner+0x930/0x930 [ 27.891758] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 27.896924] ? __might_sleep+0x95/0x190 [ 27.900877] ? find_held_lock+0x35/0x1d0 [ 27.904923] ? futex_wait+0x402/0x990 [ 27.908702] ? lock_downgrade+0x980/0x980 [ 27.912824] ? __unqueue_futex+0x1c0/0x290 [ 27.917033] ? lock_release+0xa40/0xa40 [ 27.920982] ? fault_in_user_writeable+0x90/0x90 [ 27.925716] ? do_raw_spin_trylock+0x190/0x190 [ 27.930282] ? check_noncircular+0x20/0x20 [ 27.934506] ? drop_futex_key_refs.isra.13+0x63/0xb0 [ 27.939594] ? futex_wait+0x69e/0x990 [ 27.943386] ? find_held_lock+0x35/0x1d0 [ 27.947444] ? get_signal+0x7ae/0x16c0 [ 27.951313] ? lock_downgrade+0x980/0x980 [ 27.955450] do_group_exit+0x149/0x400 [ 27.959321] ? do_raw_spin_trylock+0x190/0x190 [ 27.963883] ? SyS_exit+0x30/0x30 [ 27.967318] ? _raw_spin_unlock_irq+0x27/0x70 [ 27.971797] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 27.976800] get_signal+0x73f/0x16c0 [ 27.980507] ? ptrace_notify+0x130/0x130 [ 27.984556] ? exit_robust_list+0x240/0x240 [ 27.988868] ? __sched_text_start+0x8/0x8 [ 27.993003] ? __fget+0x333/0x570 [ 27.996442] ? lock_downgrade+0x980/0x980 [ 28.000575] do_signal+0x94/0x1ee0 [ 28.004098] ? __lock_is_held+0xb6/0x140 [ 28.008145] ? setup_sigcontext+0x7d0/0x7d0 [ 28.012468] ? schedule+0xf5/0x430 [ 28.015993] ? __schedule+0x2060/0x2060 [ 28.019950] ? iterate_fd+0x3f0/0x3f0 [ 28.023732] ? find_held_lock+0x35/0x1d0 [ 28.027780] ? exit_to_usermode_loop+0x8c/0x310 [ 28.032440] exit_to_usermode_loop+0x214/0x310 [ 28.037001] ? ioctl_preallocate+0x2b0/0x2b0 [ 28.041399] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 28.046915] ? selinux_capable+0x40/0x40 [ 28.050968] syscall_return_slowpath+0x490/0x550 [ 28.055704] ? prepare_exit_to_usermode+0x340/0x340 [ 28.060716] ? entry_SYSCALL_64_fastpath+0x69/0x96 [ 28.065631] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 28.070629] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 28.075369] entry_SYSCALL_64_fastpath+0x94/0x96 [ 28.080109] RIP: 0033:0x452a39 [ 28.083277] RSP: 002b:00007fc90dc6dce8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 28.090968] RAX: fffffffffffffe00 RBX: 0000000000758100 RCX: 0000000000452a39 [ 28.098218] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000758100 [ 28.105470] RBP: 0000000000758100 R08: 0000000000000000 R09: 00000000007580d8 [ 28.112718] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 28.119972] R13: 00007ffefcb999ef R14: 00007fc90dc6e9c0 R15: 0000000000000002 [ 28.127237] 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 [ 28.146407] RIP: native_write_cr4+0x4/0x10 RSP: ffff8801c4a5f058 [ 28.152538] ---[ end trace 9af8ae52f86d5047 ]--- [ 28.157272] Kernel panic - not syncing: Fatal exception [ 28.163000] Dumping ftrace buffer: [ 28.166512] (ftrace buffer empty) [ 28.170191] Kernel Offset: disabled [ 28.173788] Rebooting in 86400 seconds..