[ OK ] Reached target Login Prompts. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.97' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 34.451319] audit: type=1400 audit(1602590858.290:8): avc: denied { execmem } for pid=6359 comm="syz-executor144" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 34.456625] INFO: trying to register non-static key. [ 34.476316] the code is fine but needs lockdep annotation. [ 34.481947] turning off the locking correctness validator. [ 34.487582] CPU: 1 PID: 6359 Comm: syz-executor144 Not tainted 4.14.198-syzkaller #0 [ 34.495451] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.504798] Call Trace: [ 34.507371] dump_stack+0x1b2/0x283 [ 34.510990] register_lock_class+0x32b/0x1320 [ 34.515478] ? static_obj+0x50/0x50 [ 34.519095] ? save_trace+0xd6/0x290 [ 34.522788] __lock_acquire+0x167/0x3f20 [ 34.526868] ? cpuacct_charge+0x1ca/0x350 [ 34.531000] ? __lock_acquire+0x5fc/0x3f20 [ 34.535257] ? trace_hardirqs_on+0x10/0x10 [ 34.539475] ? __lock_acquire+0x5fc/0x3f20 [ 34.543867] ? trace_hardirqs_on+0x10/0x10 [ 34.548125] lock_acquire+0x170/0x3f0 [ 34.551933] ? flush_work+0x88/0x770 [ 34.555725] ? finish_task_switch+0x178/0x610 [ 34.560215] flush_work+0xad/0x770 [ 34.563751] ? flush_work+0x88/0x770 [ 34.567456] ? worker_thread+0xff0/0xff0 [ 34.571517] ? trace_hardirqs_on_caller+0x3a8/0x580 [ 34.576888] ? _raw_spin_unlock_irq+0x5a/0x80 [ 34.581374] ? finish_task_switch+0x178/0x610 [ 34.585854] ? finish_task_switch+0x14d/0x610 [ 34.590350] ? mark_held_locks+0xa6/0xf0 [ 34.594431] ? __cancel_work_timer+0x2c1/0x460 [ 34.599026] __cancel_work_timer+0x321/0x460 [ 34.603457] ? work_on_cpu_safe+0x70/0x70 [ 34.607589] ? ___preempt_schedule+0x16/0x18 [ 34.611980] ? preempt_schedule_common+0x45/0xc0 [ 34.616715] ? ___preempt_schedule+0x16/0x18 [ 34.621104] ? smc_accept_dequeue+0x382/0x5c0 [ 34.625594] smc_close_active+0x768/0xb20 [ 34.629735] smc_release+0x3e1/0x5d0 [ 34.633447] __sock_release+0xcd/0x2b0 [ 34.637316] ? __sock_release+0x2b0/0x2b0 [ 34.641449] sock_close+0x15/0x20 [ 34.644896] __fput+0x25f/0x7a0 [ 34.648158] task_work_run+0x11f/0x190 [ 34.652038] do_exit+0xa08/0x27f0 [ 34.655484] ? ___preempt_schedule+0x16/0x18 [ 34.659894] ? mm_update_next_owner+0x5b0/0x5b0 [ 34.664566] ? smc_listen+0xe3/0x370 [ 34.668262] ? __local_bh_enable_ip+0x132/0x170 [ 34.672909] ? smc_listen+0xe3/0x370 [ 34.676614] ? SyS_listen+0x170/0x210 [ 34.680397] do_group_exit+0x100/0x2e0 [ 34.684272] SyS_exit_group+0x19/0x20 [ 34.688080] ? do_group_exit+0x2e0/0x2e0 [ 34.692142] do_syscall_64+0x1d5/0x640 [ 34.696014] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 34.701329]