[....] Starting enhanced syslogd: rsyslogd[ 11.086279] audit: type=1400 audit(1514691986.389:5): avc: denied { syslog } for pid=2993 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 mcstransd: [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] 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: [ 16.926050] audit: type=1400 audit(1514691992.228:6): 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 Warning: Permanently added '10.128.15.238' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 103.149671] audit: type=1400 audit(1514692078.452:7): avc: denied { map } for pid=3151 comm="syzkaller481668" path="/root/syzkaller481668009" 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 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 103.186920] 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 [ 103.596985] WARNING: CPU: 1 PID: 3184 at arch/x86/kvm/x86.c:7375 kvm_arch_vcpu_ioctl_run+0x1c7/0x5cb0 [ 103.606408] Kernel panic - not syncing: panic_on_warn set ... [ 103.606408] [ 103.613741] CPU: 1 PID: 3184 Comm: syzkaller481668 Not tainted 4.15.0-rc4-next-20171221+ #78 [ 103.622292] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 103.631614] Call Trace: [ 103.634172] dump_stack+0x194/0x257 [ 103.637771] ? arch_local_irq_restore+0x53/0x53 [ 103.642432] ? vsnprintf+0x1ed/0x1900 [ 103.646206] panic+0x1e4/0x41c [ 103.649372] ? refcount_error_report+0x214/0x214 [ 103.654121] ? show_regs_print_info+0x18/0x18 [ 103.658616] ? __warn+0x1c1/0x200 [ 103.662048] ? kvm_arch_vcpu_ioctl_run+0x1c7/0x5cb0 [ 103.667035] __warn+0x1dc/0x200 [ 103.670287] ? kvm_arch_vcpu_ioctl_run+0x1c7/0x5cb0 [ 103.675275] report_bug+0x211/0x2d0 [ 103.678883] fixup_bug.part.11+0x37/0x80 [ 103.682922] do_error_trap+0x2d7/0x3e0 [ 103.686784] ? math_error+0x400/0x400 [ 103.690555] ? __lock_is_held+0xb6/0x140 [ 103.694595] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 103.699410] do_invalid_op+0x1b/0x20 [ 103.703092] invalid_op+0x22/0x40 [ 103.706516] RIP: 0010:kvm_arch_vcpu_ioctl_run+0x1c7/0x5cb0 [ 103.712110] RSP: 0018:ffff8801c6b176b0 EFLAGS: 00010293 [ 103.717448] RAX: ffff8801c6ba0340 RBX: ffff8801c3823000 RCX: ffffffff810df6b7 [ 103.724686] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8801c4391560 [ 103.731924] RBP: ffff8801c6b17a40 R08: 1ffff10038872d43 R09: 0000000000000001 [ 103.739163] R10: ffff8801c6b17690 R11: 0000000000000004 R12: 0000000000000000 [ 103.746406] R13: ffff8801d7a97380 R14: ffff8801c4391340 R15: ffff8801c4391340 [ 103.753658] ? kvm_arch_vcpu_ioctl_run+0x1c7/0x5cb0 [ 103.758653] ? mutex_lock_io_nested+0x1900/0x1900 [ 103.763462] ? futex_wait_setup+0x22e/0x3d0 [ 103.767759] ? futex_wake+0x680/0x680 [ 103.771533] ? lock_downgrade+0x980/0x980 [ 103.775652] ? kvm_arch_vcpu_runnable+0x560/0x560 [ 103.780460] ? __lock_acquire+0x664/0x3e00 [ 103.784661] ? mmdrop+0x18/0x30 [ 103.787910] ? drop_futex_key_refs.isra.12+0x63/0xa0 [ 103.792982] ? futex_wait+0x6a9/0x9a0 [ 103.796763] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 103.801924] ? mmdrop+0x18/0x30 [ 103.805181] ? drop_futex_key_refs.isra.12+0x63/0xa0 [ 103.810251] ? futex_wake+0x2ca/0x680 [ 103.814025] ? get_futex_key+0x1d50/0x1d50 [ 103.818250] ? lock_downgrade+0x980/0x980 [ 103.822364] ? check_noncircular+0x20/0x20 [ 103.826574] kvm_vcpu_ioctl+0x6f1/0xff0 [ 103.830513] ? kvm_vcpu_ioctl+0x6f1/0xff0 [ 103.834633] ? kvm_vcpu_fault+0x520/0x520 [ 103.838758] ? find_held_lock+0x35/0x1d0 [ 103.842793] ? __fget+0x333/0x570 [ 103.846223] ? lock_downgrade+0x980/0x980 [ 103.850345] ? lock_release+0xa40/0xa40 [ 103.854292] ? __lock_is_held+0xb6/0x140 [ 103.858332] ? __fget+0x35c/0x570 [ 103.861760] ? iterate_fd+0x3f0/0x3f0 [ 103.865529] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 103.870266] ? retint_kernel+0x10/0x10 [ 103.874126] ? kvm_vcpu_fault+0x520/0x520 [ 103.878249] do_vfs_ioctl+0x1b1/0x1520 [ 103.882112] ? ioctl_preallocate+0x2b0/0x2b0 [ 103.886499] ? selinux_capable+0x40/0x40 [ 103.890532] ? SyS_futex+0x269/0x390 [ 103.894227] ? security_file_ioctl+0x89/0xb0 [ 103.898606] SyS_ioctl+0x8f/0xc0 [ 103.901953] entry_SYSCALL_64_fastpath+0x1f/0x96 [ 103.906678] RIP: 0033:0x445a19 [ 103.909834] RSP: 002b:00007fde97a72da8 EFLAGS: 00000297 ORIG_RAX: 0000000000000010 [ 103.917521] RAX: ffffffffffffffda RBX: 00007fde97a73700 RCX: 0000000000445a19 [ 103.924766] RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000025 [ 103.932004] RBP: 00007ffeda37cfd0 R08: 0000000000000000 R09: 0000000000000000 [ 103.939249] R10: 0000000000000000 R11: 0000000000000297 R12: 0000000000000000 [ 103.946485] R13: 00007ffeda37cf2f R14: 00007fde97a739c0 R15: 0000000000000009 [ 103.953919] Dumping ftrace buffer: [ 103.957489] (ftrace buffer empty) [ 103.961170] Kernel Offset: disabled [ 103.964770] Rebooting in 86400 seconds..