[....] Starting enhanced syslogd: rsyslogd[ 12.849442] audit: type=1400 audit(1515772495.950:5): avc: denied { syslog } for pid=3341 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: [ 19.220145] audit: type=1400 audit(1515772502.320:6): avc: denied { map } for pid=3482 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 '10.128.0.42' (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 net.ipv6.conf.syz3.accept_dad = 0 [ 36.625662] audit: type=1400 audit(1515772519.726:7): avc: denied { map } for pid=3499 comm="syzkaller384148" path="/root/syzkaller384148512" 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.syz2.accept_dad = 0 net.ipv6.conf.syz6.accept_dad = 0 net.ipv6.conf.syz4.accept_dad = 0 net.ipv6.conf.syz7.router_solicitations = 0 net.ipv6.conf.syz0.accept_dad = 0 net.ipv6.conf.syz5.router_solicitations = 0 net.ipv6.conf.syz3.router_solicitations = 0 net.ipv6.conf.syz1.router_solicitations = 0 net.ipv6.conf.syz2.router_solicitations = 0 net.ipv6.conf.syz4.router_solicitations = 0 net.ipv6.conf.syz6.router_solicitations = 0 net.ipv6.conf.syz0.router_solicitations = 0 executing program executing program executing program executing program executing program executing program executing program executing program [ 37.333832] 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 [ 43.533590] WARNING: CPU: 1 PID: 4829 at arch/x86/kvm/x86.c:7305 kvm_arch_vcpu_ioctl_run+0x1bf/0x5bf0 [ 43.542998] Kernel panic - not syncing: panic_on_warn set ... [ 43.542998] [ 43.550358] CPU: 1 PID: 4829 Comm: syzkaller384148 Not tainted 4.15.0-rc7+ #258 [ 43.557795] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 43.567167] Call Trace: [ 43.569786] dump_stack+0x194/0x257 [ 43.573419] ? arch_local_irq_restore+0x53/0x53 [ 43.578101] ? vsnprintf+0x1ed/0x1900 [ 43.581918] panic+0x1e4/0x41c [ 43.585113] ? refcount_error_report+0x214/0x214 [ 43.589870] ? show_regs_print_info+0x18/0x18 [ 43.594374] ? __warn+0x1c1/0x200 [ 43.597831] ? kvm_arch_vcpu_ioctl_run+0x1bf/0x5bf0 [ 43.602843] __warn+0x1dc/0x200 [ 43.606105] ? kvm_arch_vcpu_ioctl_run+0x1bf/0x5bf0 [ 43.611099] report_bug+0x211/0x2d0 [ 43.614706] fixup_bug.part.11+0x37/0x80 [ 43.618742] do_error_trap+0x2d7/0x3e0 [ 43.622602] ? trace_hardirqs_on+0xd/0x10 [ 43.626725] ? math_error+0x400/0x400 [ 43.630498] ? __lock_is_held+0xb6/0x140 [ 43.634542] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 43.639365] do_invalid_op+0x1b/0x20 [ 43.643055] invalid_op+0x22/0x40 [ 43.646479] RIP: 0010:kvm_arch_vcpu_ioctl_run+0x1bf/0x5bf0 [ 43.652071] RSP: 0018:ffff8801bf8ff6b0 EFLAGS: 00010293 [ 43.657409] RAX: ffff8801bfa78540 RBX: ffff8801c156f000 RCX: ffffffff810df29f [ 43.664662] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8801cc431820 [ 43.671907] RBP: ffff8801bf8ffa40 R08: 1ffff10037f1feb8 R09: 0000000000000001 [ 43.679156] R10: ffff8801bf8ffa58 R11: 0000000000000000 R12: 0000000000000000 [ 43.686409] R13: 1ffff10037f1ff72 R14: ffff8801cb5fa400 R15: ffff8801cc431600 [ 43.693679] ? kvm_arch_vcpu_ioctl_run+0x1bf/0x5bf0 [ 43.698682] ? mark_held_locks+0xaf/0x100 [ 43.702807] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 43.707885] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 43.712877] ? trace_hardirqs_on+0xd/0x10 [ 43.717005] ? free_object+0x150/0x230 [ 43.721046] ? kvm_arch_vcpu_runnable+0x560/0x560 [ 43.725862] ? debug_stats_show+0xd0/0xd0 [ 43.729981] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 43.735058] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 43.740053] ? debug_object_free+0x2f1/0x5a0 [ 43.744434] ? lockdep_init_map+0x9/0x10 [ 43.748472] ? debug_object_destroy+0x2b0/0x2b0 [ 43.753127] ? __wait_rcu_gp+0x230/0x340 [ 43.757176] ? synchronize_sched.part.64+0xac/0x100 [ 43.762165] ? synchronize_sched_expedited+0xf0/0xf0 [ 43.767245] ? call_rcu_bh+0x20/0x20 [ 43.770935] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 43.776794] ? put_pid+0x183/0x1f0 [ 43.780307] ? task_active_pid_ns+0xd0/0xd0 [ 43.784603] ? __might_sleep+0x95/0x190 [ 43.788559] kvm_vcpu_ioctl+0x64c/0x1010 [ 43.792594] ? kvm_vcpu_ioctl+0x64c/0x1010 [ 43.796806] ? trace_event_raw_event_kvm_age_page+0x340/0x340 [ 43.802679] ? find_held_lock+0x35/0x1d0 [ 43.806720] ? __fget+0x333/0x570 [ 43.810147] ? lock_downgrade+0x980/0x980 [ 43.814271] ? lock_release+0xa40/0xa40 [ 43.818220] ? __lock_is_held+0xb6/0x140 [ 43.822268] ? __fget+0x35c/0x570 [ 43.825704] ? iterate_fd+0x3f0/0x3f0 [ 43.829479] ? __close_fd+0x2d7/0x360 [ 43.833265] ? trace_event_raw_event_kvm_age_page+0x340/0x340 [ 43.839126] do_vfs_ioctl+0x1b1/0x1520 [ 43.843007] ? ioctl_preallocate+0x2b0/0x2b0 [ 43.847397] ? selinux_capable+0x40/0x40 [ 43.851437] ? SyS_futex+0x269/0x390 [ 43.855137] ? security_file_ioctl+0x89/0xb0 [ 43.859524] SyS_ioctl+0x8f/0xc0 [ 43.862872] entry_SYSCALL_64_fastpath+0x23/0x9a [ 43.867599] RIP: 0033:0x44c389 [ 43.870761] RSP: 002b:00007f827e46ece8 EFLAGS: 00000206 ORIG_RAX: 0000000000000010 [ 43.878441] RAX: ffffffffffffffda RBX: 00000000006dec54 RCX: 000000000044c389 [ 43.885685] RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000006 [ 43.892926] RBP: 00000000006dec50 R08: 0000000000000000 R09: 0000000000000000 [ 43.900171] R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000 [ 43.907413] R13: 00007ffff49fe7ef R14: 00007f827e46f9c0 R15: 000000000000001a [ 43.915375] Dumping ftrace buffer: [ 43.919005] (ftrace buffer empty) [ 43.922685] Kernel Offset: disabled [ 43.926292] Rebooting in 86400 seconds..