[....] Starting enhanced syslogd: rsyslogd[ 11.943787] audit: type=1400 audit(1514988621.036:5): avc: denied { syslog } for pid=3342 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: [ 18.588105] audit: type=1400 audit(1514988627.680:6): avc: denied { map } for pid=3483 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 '10.128.0.32' (ECDSA) to the list of known hosts. net.ipv6.conf.syz7.accept_dad = 0 net.ipv6.conf.syz1.accept_dad = 0 net.ipv6.conf.syz5.accept_dad = 0 [ 24.965208] audit: type=1400 audit(1514988634.057:7): avc: denied { map } for pid=3497 comm="syzkaller488908" path="/root/syzkaller488908618" 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 net.ipv6.conf.syz3.accept_dad = 0 net.ipv6.conf.syz6.accept_dad = 0 net.ipv6.conf.syz1.router_solicitations = 0 net.ipv6.conf.syz4.accept_dad = 0 net.ipv6.conf.syz0.accept_dad = 0 net.ipv6.conf.syz2.accept_dad = 0 net.ipv6.conf.syz7.router_solicitations = 0 net.ipv6.conf.syz3.router_solicitations = 0 net.ipv6.conf.syz5.router_solicitations = 0 net.ipv6.conf.syz6.router_solicitations = 0 net.ipv6.conf.syz4.router_solicitations = 0 net.ipv6.conf.syz0.router_solicitations = 0 net.ipv6.conf.syz2.router_solicitations = 0 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 25.552453] 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 [ 33.236334] WARNING: CPU: 0 PID: 3720 at arch/x86/kvm/x86.c:7305 kvm_arch_vcpu_ioctl_run+0x1bf/0x5bf0 [ 33.245756] Kernel panic - not syncing: panic_on_warn set ... [ 33.245756] [ 33.253107] CPU: 0 PID: 3720 Comm: syzkaller488908 Not tainted 4.15.0-rc6+ #245 [ 33.260543] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.269882] Call Trace: [ 33.272448] dump_stack+0x194/0x257 [ 33.276052] ? arch_local_irq_restore+0x53/0x53 [ 33.280699] ? vsnprintf+0x1ed/0x1900 [ 33.284478] panic+0x1e4/0x41c [ 33.287640] ? refcount_error_report+0x214/0x214 [ 33.292366] ? show_regs_print_info+0x18/0x18 [ 33.296838] ? __warn+0x1c1/0x200 [ 33.300267] ? kvm_arch_vcpu_ioctl_run+0x1bf/0x5bf0 [ 33.305251] __warn+0x1dc/0x200 [ 33.308509] ? kvm_arch_vcpu_ioctl_run+0x1bf/0x5bf0 [ 33.313506] report_bug+0x211/0x2d0 [ 33.317111] fixup_bug.part.11+0x37/0x80 [ 33.321144] do_error_trap+0x2d7/0x3e0 [ 33.325006] ? trace_hardirqs_on+0xd/0x10 [ 33.329131] ? math_error+0x400/0x400 [ 33.332903] ? __lock_is_held+0xb6/0x140 [ 33.336945] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 33.341771] do_invalid_op+0x1b/0x20 [ 33.345455] invalid_op+0x22/0x40 [ 33.348880] RIP: 0010:kvm_arch_vcpu_ioctl_run+0x1bf/0x5bf0 [ 33.354468] RSP: 0018:ffff8801d5dff6b0 EFLAGS: 00010293 [ 33.359803] RAX: ffff8801d5fda0c0 RBX: ffff88017fbe2000 RCX: ffffffff810df21f [ 33.367043] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff88017f2e2120 [ 33.374283] RBP: ffff8801d5dffa40 R08: 1ffff1003abbfeb8 R09: 0000000000000001 [ 33.381521] R10: ffff8801d5dffa58 R11: 0000000000000000 R12: 0000000000000000 [ 33.388759] R13: 1ffff1003abbff72 R14: ffff8801d6c00b80 R15: ffff88017f2e1f00 [ 33.396017] ? kvm_arch_vcpu_ioctl_run+0x1bf/0x5bf0 [ 33.401026] ? mark_held_locks+0xaf/0x100 [ 33.405150] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 33.410227] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 33.415213] ? trace_hardirqs_on+0xd/0x10 [ 33.419336] ? free_object+0x150/0x230 [ 33.423195] ? kvm_arch_vcpu_runnable+0x560/0x560 [ 33.428009] ? debug_stats_show+0xd0/0xd0 [ 33.432130] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 33.437204] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 33.442195] ? debug_object_free+0x2f1/0x5a0 [ 33.446570] ? lockdep_init_map+0x9/0x10 [ 33.450603] ? debug_object_destroy+0x2b0/0x2b0 [ 33.455255] ? __wait_rcu_gp+0x230/0x340 [ 33.459296] ? synchronize_sched.part.64+0xac/0x100 [ 33.464283] ? synchronize_sched_expedited+0xf0/0xf0 [ 33.469355] ? call_rcu_bh+0x20/0x20 [ 33.473041] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 33.478897] ? put_pid+0x183/0x1f0 [ 33.482408] ? task_active_pid_ns+0xd0/0xd0 [ 33.486702] ? __might_sleep+0x95/0x190 [ 33.490665] kvm_vcpu_ioctl+0x64c/0x1010 [ 33.494694] ? kvm_vcpu_ioctl+0x64c/0x1010 [ 33.498901] ? trace_event_raw_event_kvm_age_page+0x340/0x340 [ 33.504767] ? find_held_lock+0x35/0x1d0 [ 33.508807] ? __fget+0x333/0x570 [ 33.512230] ? lock_downgrade+0x980/0x980 [ 33.516349] ? lock_release+0xa40/0xa40 [ 33.520295] ? __lock_is_held+0xb6/0x140 [ 33.524339] ? __fget+0x35c/0x570 [ 33.527773] ? iterate_fd+0x3f0/0x3f0 [ 33.531544] ? lock_release+0xa40/0xa40 [ 33.535488] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 33.541347] ? __getnstimeofday64+0x143/0x470 [ 33.545816] ? trace_event_raw_event_kvm_age_page+0x340/0x340 [ 33.551670] do_vfs_ioctl+0x1b1/0x1520 [ 33.555534] ? ioctl_preallocate+0x2b0/0x2b0 [ 33.559916] ? selinux_capable+0x40/0x40 [ 33.563956] ? SyS_futex+0x269/0x390 [ 33.567669] ? security_file_ioctl+0x89/0xb0 [ 33.572052] SyS_ioctl+0x8f/0xc0 [ 33.575396] entry_SYSCALL_64_fastpath+0x23/0x9a [ 33.580120] RIP: 0033:0x44a619 [ 33.583278] RSP: 002b:00007fa83029eda8 EFLAGS: 00000297 ORIG_RAX: 0000000000000010 [ 33.590957] RAX: ffffffffffffffda RBX: 00000000006dcc54 RCX: 000000000044a619 [ 33.598195] RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000291 [ 33.605438] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 33.612679] R10: 0000000000000000 R11: 0000000000000297 R12: 00000000006dcc50 [ 33.619917] R13: 6d766b2f7665642f R14: 00007fa83029f9c0 R15: 0000000000000009 [ 33.627774] Dumping ftrace buffer: [ 33.631371] (ftrace buffer empty) [ 33.635049] Kernel Offset: disabled [ 33.638644] Rebooting in 86400 seconds..