[ 189.236494] [] create_new_namespaces+0xf5/0x180 [ 189.242785] [] unshare_nsproxy_namespaces+0x55/0xb0 [ 189.249424] [] SyS_unshare+0x19c/0x330 [ 189.254934] [] entry_SYSCALL_64_fastpath+0x16/0x71 [ 189.262337] IPVS: Creating netns size=2096 id=1 [ 189.267037] IPVS: ftp: loaded support on port[0] = 21 [ 189.510576] audit_printk_skb: 27 callbacks suppressed [ 189.515782] audit: type=1400 audit(1564108231.095:34): avc: denied { create } for pid=5707 comm="syz-fuzzer" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_crypto_socket permissive=1 [ 189.539417] audit: type=1400 audit(1564108231.115:35): avc: denied { create } for pid=5707 comm="syz-fuzzer" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_generic_socket permissive=1 [ 189.563312] audit: type=1400 audit(1564108231.145:36): avc: denied { create } for pid=5707 comm="syz-fuzzer" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_netfilter_socket permissive=1 Warning: Permanently added '10.128.15.216' (ECDSA) to the list of known hosts. 2019/07/26 02:30:38 parsed 1 programs 2019/07/26 02:30:45 executed programs: 0 [ 203.931222] kmemleak: 576 new suspected memory leaks (see /sys/kernel/debug/kmemleak) [ 290.469733] INFO: rcu_preempt self-detected stall on CPU [ 290.475332] 1-...: (1 GPs behind) idle=ef5/140000000000001/0 softirq=18773/18773 fqs=9999 [ 290.479747] INFO: rcu_preempt detected stalls on CPUs/tasks: [ 290.479750] 1-...: (1 GPs behind) idle=ef5/140000000000001/0 softirq=18773/18773 fqs=9999 [ 290.479752] (detected by 0, t=10002 jiffies, g=1020, c=1019, q=5465) [ 290.479753] Task dump for CPU 1: [ 290.479756] kworker/u4:3 R running task 0 2153 2 0x00000008 [ 290.479764] Workqueue: netns cleanup_net [ 290.479767] ffffffff82458ec6 ffff8800aa9dc648 ffff88012b04cf40 ffff88012abd0300 [ 290.479770] ffff8800bab4c000 ffff8800bab4bd58 ffff8800bab4bd50 ffff88012abd0300 [ 290.479776] ffff8800bab4bd70 ffff8800bab4bc10 ffffffff824594e4 7fffffffffffffff [ 290.479776] Call Trace: [ 290.479782] [] ? __schedule+0x2c6/0x750 [ 290.479784] [] ? schedule+0x44/0x90 [ 290.479787] [] ? schedule_timeout+0x1e4/0x250 [ 290.479791] [] ? native_queued_spin_lock_slowpath+0x18/0x1b0 [ 290.479793] [] ? _raw_spin_lock+0x38/0x40 [ 290.479796] [] ? nf_conntrack_lock+0xd/0x50 [ 290.479799] [] ? ctnl_untimeout.isra.4+0xc3/0xf0 [ 290.479801] [] ? cttimeout_net_exit+0x28/0x80 [ 290.479803] [] ? ops_exit_list.isra.4+0x33/0x60 [ 290.479805] [] ? cleanup_net+0x19b/0x260 [ 290.479809] [] ? process_one_work+0x150/0x400 [ 290.479812] [] ? worker_thread+0x49/0x470 [ 290.479814] [] ? process_one_work+0x400/0x400 [ 290.479816] [] ? process_one_work+0x400/0x400 [ 290.479818] [] ? kthread+0xc4/0xe0 [ 290.479821] [] ? task_dead_fair+0xd/0x10 [ 290.479823] [] ? kthread_worker_fn+0x150/0x150 [ 290.479825] [] ? ret_from_fork+0x3f/0x70 [ 290.479827] [] ? kthread_worker_fn+0x150/0x150 [ 290.658378] (t=10020 jiffies g=1020 c=1019 q=5465) [ 290.663597] Task dump for CPU 1: [ 290.666935] kworker/u4:3 R running task 0 2153 2 0x00000008 [ 290.674363] Workqueue: netns cleanup_net [ 290.678517] 0000000000000002 ffff88012c103dc0 ffffffff8117fac6 0000000000000001 [ 290.686516] ffffffff8305f240 ffff88012c103dd8 ffffffff81181f42 0000000000000002 [ 290.694523] ffff88012c103e08 ffffffff811ae3f9 ffff88012c117200 ffffffff8305f240 [ 290.702517] Call Trace: [ 290.705080] [] sched_show_task+0xb6/0x120 [ 290.711587] [] dump_cpu_task+0x32/0x40 [ 290.717098] [] rcu_dump_cpu_stacks+0x89/0xe0 [ 290.723141] [] rcu_check_callbacks+0x4c8/0x890 [ 290.729368] [] ? tick_sched_handle.isra.16+0x40/0x40 [ 290.736091] [] ? tick_sched_handle.isra.16+0x40/0x40 [ 290.742818] [] update_process_times+0x34/0x60 [ 290.748936] [] tick_sched_handle.isra.16+0x31/0x40 [ 290.755486] [] tick_sched_timer+0x38/0x70 [ 290.761254] [] __hrtimer_run_queues+0x93/0x210 [ 290.767455] [] hrtimer_interrupt+0xa7/0x1a0 [ 290.773415] [] local_apic_timer_interrupt+0x31/0x50 [ 290.780053] [] smp_apic_timer_interrupt+0x38/0x50 [ 290.786528] [] apic_timer_interrupt+0x82/0x90 [ 290.792646] [] ? native_queued_spin_lock_slowpath+0x18/0x1b0 [ 290.800804] [] ? _raw_spin_lock+0x38/0x40 [ 290.806575] [] nf_conntrack_lock+0xd/0x50 [ 290.812347] [] ctnl_untimeout.isra.4+0xc3/0xf0 [ 290.818550] [] cttimeout_net_exit+0x28/0x80 [ 290.824492] [] ops_exit_list.isra.4+0x33/0x60 [ 290.830611] [] cleanup_net+0x19b/0x260 [ 290.836121] [] process_one_work+0x150/0x400 [ 290.842067] [] worker_thread+0x49/0x470 [ 290.847665] [] ? process_one_work+0x400/0x400 [ 290.853784] [] ? process_one_work+0x400/0x400 [ 290.859904] [] kthread+0xc4/0xe0 [ 290.864894] [] ? task_dead_fair+0xd/0x10 [ 290.870578] [] ? kthread_worker_fn+0x150/0x150 [ 290.876786] [] ret_from_fork+0x3f/0x70 [ 290.882301] [] ? kthread_worker_fn+0x150/0x150