[....] Starting enhanced syslogd: rsyslogd[ 10.659681] audit: type=1400 audit(1514677640.839:5): avc: denied { syslog } for pid=3029 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: [ 15.607143] audit: type=1400 audit(1514677645.786:6): avc: denied { map } for pid=3170 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 '10.128.0.13' (ECDSA) to the list of known hosts. [ 21.736296] audit: type=1400 audit(1514677651.916:7): avc: denied { map } for pid=3184 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 2017/12/30 23:47:32 parsed 1 programs 2017/12/30 23:47:32 executed programs: 0 [ 21.866459] audit: type=1400 audit(1514677652.046:8): avc: denied { map } for pid=3184 comm="syz-execprog" path="/root/syzkaller-shm420644593" 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 [ 21.948297] kvm: KVM_SET_TSS_ADDR need to be called before entering vcpu 2017/12/30 23:47:37 executed programs: 185 [ 28.311446] WARNING: CPU: 0 PID: 4404 at arch/x86/kvm/x86.c:7305 kvm_arch_vcpu_ioctl_run+0x1bf/0x5bf0 [ 28.320843] Kernel panic - not syncing: panic_on_warn set ... [ 28.320843] [ 28.328198] CPU: 0 PID: 4404 Comm: syz-executor3 Not tainted 4.15.0-rc5+ #242 [ 28.335458] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 28.344798] Call Trace: [ 28.347381] dump_stack+0x194/0x257 [ 28.351002] ? arch_local_irq_restore+0x53/0x53 [ 28.355662] ? vsnprintf+0x1ed/0x1900 [ 28.359462] panic+0x1e4/0x41c [ 28.362817] ? refcount_error_report+0x214/0x214 [ 28.367559] ? show_regs_print_info+0x18/0x18 [ 28.372053] ? __warn+0x1c1/0x200 [ 28.375502] ? kvm_arch_vcpu_ioctl_run+0x1bf/0x5bf0 [ 28.380525] __warn+0x1dc/0x200 [ 28.383795] ? kvm_arch_vcpu_ioctl_run+0x1bf/0x5bf0 [ 28.388807] report_bug+0x211/0x2d0 [ 28.392433] fixup_bug.part.11+0x37/0x80 [ 28.396482] do_error_trap+0x2d7/0x3e0 [ 28.400380] ? math_error+0x400/0x400 [ 28.404195] ? __lock_is_held+0xb6/0x140 [ 28.408242] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 28.413065] do_invalid_op+0x1b/0x20 [ 28.416764] invalid_op+0x22/0x40 [ 28.420226] RIP: 0010:kvm_arch_vcpu_ioctl_run+0x1bf/0x5bf0 [ 28.425817] RSP: 0018:ffff8801c13676b0 EFLAGS: 00010293 [ 28.431150] RAX: ffff8801c129e280 RBX: ffff8801d2d0e000 RCX: ffffffff810df1cf [ 28.438388] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8801c10b14e0 [ 28.445627] RBP: ffff8801c1367a40 R08: 1ffff1003826ceff R09: 0000000000000001 [ 28.452865] R10: ffff8801c1367a58 R11: 0000000000000000 R12: 0000000000000000 [ 28.460114] R13: 1ffff1003826cf72 R14: ffff8801c2909300 R15: ffff8801c10b12c0 [ 28.467375] ? kvm_arch_vcpu_ioctl_run+0x1bf/0x5bf0 [ 28.472385] ? depot_save_stack+0x12c/0x490 [ 28.476685] ? put_pid+0x176/0x1f0 [ 28.480198] ? save_stack+0xa3/0xd0 [ 28.483798] ? save_stack+0x43/0xd0 [ 28.487395] ? kasan_slab_free+0x71/0xc0 [ 28.491433] ? kmem_cache_free+0x83/0x2a0 [ 28.495553] ? kvm_vcpu_ioctl+0xd75/0x1010 [ 28.499760] ? kvm_arch_vcpu_runnable+0x560/0x560 [ 28.504574] ? debug_check_no_obj_freed+0x611/0xf1f [ 28.509563] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 28.514549] ? check_noncircular+0x20/0x20 [ 28.518754] ? print_irqtrace_events+0x270/0x270 [ 28.523483] ? free_obj_work+0x690/0x690 [ 28.527528] ? refcount_sub_and_test+0x115/0x1b0 [ 28.532255] ? refcount_inc+0x50/0x50 [ 28.536032] ? put_pid+0x176/0x1f0 [ 28.539552] ? refcount_dec_and_test+0x1a/0x20 [ 28.544118] ? put_pid_ns+0xa6/0xc0 [ 28.547716] ? put_pid+0x183/0x1f0 [ 28.551229] ? task_active_pid_ns+0xd0/0xd0 [ 28.555532] ? __might_sleep+0x95/0x190 [ 28.559840] kvm_vcpu_ioctl+0x64c/0x1010 [ 28.563868] ? kvm_vcpu_ioctl+0x64c/0x1010 [ 28.568083] ? trace_event_raw_event_kvm_age_page+0x340/0x340 [ 28.573965] ? find_held_lock+0x35/0x1d0 [ 28.578008] ? __fget+0x333/0x570 [ 28.581435] ? lock_downgrade+0x980/0x980 [ 28.585566] ? lock_release+0xa40/0xa40 [ 28.589514] ? __lock_is_held+0xb6/0x140 [ 28.593562] ? __fget+0x35c/0x570 [ 28.596997] ? iterate_fd+0x3f0/0x3f0 [ 28.600780] ? finish_task_switch+0x1d3/0x740 [ 28.605251] ? trace_event_raw_event_kvm_age_page+0x340/0x340 [ 28.611107] do_vfs_ioctl+0x1b1/0x1520 [ 28.614976] ? ioctl_preallocate+0x2b0/0x2b0 [ 28.619358] ? selinux_capable+0x40/0x40 [ 28.623395] ? SyS_futex+0x269/0x390 [ 28.627093] ? security_file_ioctl+0x89/0xb0 [ 28.631478] SyS_ioctl+0x8f/0xc0 [ 28.634821] entry_SYSCALL_64_fastpath+0x1f/0x96 [ 28.639555] RIP: 0033:0x452ac9 [ 28.642716] RSP: 002b:00007ff42bdaac58 EFLAGS: 00000212 ORIG_RAX: 0000000000000010 [ 28.650394] RAX: ffffffffffffffda RBX: 000000000071c0c8 RCX: 0000000000452ac9 [ 28.657643] RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000004 [ 28.664882] RBP: 0000000000000243 R08: 0000000000000000 R09: 0000000000000000 [ 28.672122] R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f16e8 [ 28.679369] R13: 00000000ffffffff R14: 00007ff42bdab6d4 R15: 0000000000000004 [ 28.687271] Dumping ftrace buffer: [ 28.690862] (ftrace buffer empty) [ 28.694541] Kernel Offset: disabled [ 28.698139] Rebooting in 86400 seconds..