syzkaller login: [ 17.033158] cfg80211: Calling CRDA to update world regulatory domain [ 20.193138] cfg80211: Calling CRDA to update world regulatory domain [ 23.353195] cfg80211: Calling CRDA to update world regulatory domain [ 26.513200] cfg80211: Calling CRDA to update world regulatory domain [ 29.673195] cfg80211: Calling CRDA to update world regulatory domain [ 32.833231] cfg80211: Calling CRDA to update world regulatory domain [ 35.993495] cfg80211: Calling CRDA to update world regulatory domain [ 39.153195] cfg80211: Exceeded CRDA call max attempts. Not calling CRDA [ 48.507587] IPVS: Creating netns size=2688 id=1 [ 48.512302] IPVS: ftp: loaded support on port[0] = 21 Warning: Permanently added '10.128.10.62' (ECDSA) to the list of known hosts. 2019/09/14 13:43:26 parsed 1 programs 2019/09/14 13:43:26 executed programs: 0 [ 54.948927] IPv6: ADDRCONF(NETDEV_CHANGE): nr0: link becomes ready [ 54.955516] IPv6: ADDRCONF(NETDEV_CHANGE): nr2: link becomes ready [ 54.964773] IPv6: ADDRCONF(NETDEV_CHANGE): nr5: link becomes ready [ 54.971615] IPv6: ADDRCONF(NETDEV_CHANGE): nr1: link becomes ready [ 54.971905] IPVS: Creating netns size=2688 id=2 [ 54.971918] IPVS: ftp: loaded support on port[0] = 21 [ 54.988165] IPv6: ADDRCONF(NETDEV_CHANGE): nr3: link becomes ready [ 54.998534] IPv6: ADDRCONF(NETDEV_CHANGE): nr4: link becomes ready [ 55.005586] IPVS: Creating netns size=2688 id=3 [ 55.011278] IPVS: ftp: loaded support on port[0] = 21 [ 55.024395] IPVS: Creating netns size=2688 id=4 [ 55.029158] IPVS: ftp: loaded support on port[0] = 21 [ 55.030311] chnl_net:caif_netlink_parms(): no params data found [ 55.041372] device bridge_slave_0 entered promiscuous mode [ 55.041990] device bridge_slave_1 entered promiscuous mode [ 55.044559] IPv6: ADDRCONF(NETDEV_UP): bond_slave_0: link is not ready [ 55.044894] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 55.045048] IPv6: ADDRCONF(NETDEV_UP): bond_slave_1: link is not ready [ 55.045150] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 55.054361] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 55.054424] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 55.058458] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 55.058492] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 55.059711] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 55.073754] 8021q: adding VLAN 0 to HW filter on device bond0 [ 55.074049] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 55.126692] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 55.140121] IPVS: Creating netns size=2688 id=5 [ 55.145026] IPVS: ftp: loaded support on port[0] = 21 [ 55.161388] IPVS: Creating netns size=2688 id=6 [ 55.166237] IPVS: ftp: loaded support on port[0] = 21 [ 55.175383] chnl_net:caif_netlink_parms(): no params data found [ 55.182384] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 55.189348] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 55.196956] bridge0: port 1(bridge_slave_0) entered forwarding state [ 55.203549] bridge0: port 1(bridge_slave_0) entered forwarding state [ 55.210519] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 55.217913] bridge0: port 2(bridge_slave_1) entered forwarding state [ 55.224415] bridge0: port 2(bridge_slave_1) entered forwarding state [ 55.234254] chnl_net:caif_netlink_parms(): no params data found [ 55.241504] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 55.254826] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 55.263372] chnl_net:caif_netlink_parms(): no params data found [ 55.271050] IPVS: Creating netns size=2688 id=7 [ 55.273793] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 55.273849] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 55.281111] device bridge_slave_0 entered promiscuous mode [ 55.281416] device bridge_slave_1 entered promiscuous mode [ 55.285104] IPv6: ADDRCONF(NETDEV_UP): bond_slave_0: link is not ready [ 55.285223] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 55.285369] IPv6: ADDRCONF(NETDEV_UP): bond_slave_1: link is not ready [ 55.285475] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 55.302722] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 55.302785] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 55.309029] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 55.309067] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 55.310149] bridge0: port 2(bridge_slave_1) entered forwarding state [ 55.310211] bridge0: port 2(bridge_slave_1) entered forwarding state [ 55.310222] bridge0: port 1(bridge_slave_0) entered forwarding state [ 55.310229] bridge0: port 1(bridge_slave_0) entered forwarding state [ 55.383163] bridge0: port 1(bridge_slave_0) entered disabled state [ 55.383235] IPVS: ftp: loaded support on port[0] = 21 [ 55.395487] bridge0: port 2(bridge_slave_1) entered disabled state [ 55.406540] device bridge_slave_0 entered promiscuous mode [ 55.412413] device bridge_slave_1 entered promiscuous mode [ 55.427512] IPv6: ADDRCONF(NETDEV_UP): bond_slave_0: link is not ready [ 55.434944] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 55.445657] chnl_net:caif_netlink_parms(): no params data found [ 55.452604] IPv6: ADDRCONF(NETDEV_UP): bond_slave_1: link is not ready [ 55.459584] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 55.472271] 8021q: adding VLAN 0 to HW filter on device bond0 [ 55.479883] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 55.500555] device bridge_slave_0 entered promiscuous mode [ 55.506396] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 55.513236] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 55.520145] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 55.527469] device bridge_slave_1 entered promiscuous mode [ 55.537761] device bridge_slave_0 entered promiscuous mode [ 55.546141] chnl_net:caif_netlink_parms(): no params data found [ 55.558221] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 55.565532] IPv6: ADDRCONF(NETDEV_UP): bond_slave_0: link is not ready [ 55.572292] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 55.580061] device bridge_slave_1 entered promiscuous mode [ 55.587724] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 55.595176] bridge0: port 1(bridge_slave_0) entered forwarding state [ 55.601686] bridge0: port 1(bridge_slave_0) entered forwarding state [ 55.608249] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 55.615582] bridge0: port 2(bridge_slave_1) entered forwarding state [ 55.622052] bridge0: port 2(bridge_slave_1) entered forwarding state [ 55.628913] IPv6: ADDRCONF(NETDEV_UP): bond_slave_1: link is not ready [ 55.635734] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 55.645869] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 55.653004] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 55.661373] IPv6: ADDRCONF(NETDEV_UP): bond_slave_0: link is not ready [ 55.668938] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 55.676672] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 55.685749] IPv6: ADDRCONF(NETDEV_UP): bond_slave_1: link is not ready [ 55.692755] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 55.701686] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 55.710566] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 55.717903] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 55.727931] device bridge_slave_0 entered promiscuous mode [ 55.735552] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 55.742473] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 55.749599] device bridge_slave_1 entered promiscuous mode [ 70.623325] bridge0: port 1(bridge_slave_0) entered forwarding state [ 70.629897] bridge0: port 2(bridge_slave_1) entered forwarding state [ 160.763072] INFO: rcu_sched self-detected stall on CPU[ 160.763100] INFO: rcu_preempt detected stalls on CPUs/tasks: [ 160.763102] (detected by 1, t=10502 jiffies, g=360, c=359, q=495) [ 160.763106] All QSes seen, last rcu_preempt kthread activity 10502 (4294953158-4294942656), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 160.763107] swapper/1 R running task 14920 0 1 0x00000000 [ 160.763115] ffff88012b7842d0 ffff88012c103d98 ffffffff811a3242 0000000000002906 [ 160.763118] ffffffff8325cdc0 0000000000000168 0000000000000000 ffff88012c103e28 [ 160.763121] ffffffff811e9779 0000000000000000 ffff88012c110820 ffff88012b7842d0 [ 160.763123] Call Trace: [ 160.763124] [] sched_show_task+0xf2/0x1a0 [ 160.763136] [] rcu_check_callbacks+0xd69/0xd70 [ 160.763140] [] update_process_times+0x34/0x60 [ 160.763144] [] tick_sched_handle.isra.22+0x20/0x60 [ 160.763146] [] tick_sched_timer+0x3c/0x80 [ 160.763148] [] __run_hrtimer+0xe6/0x760 [ 160.763150] [] ? hrtimer_interrupt+0x88/0x230 [ 160.763151] [] ? tick_sched_do_timer+0x50/0x50 [ 160.763153] [] hrtimer_interrupt+0x103/0x230 [ 160.763158] [] local_apic_timer_interrupt+0x35/0x60 [ 160.763160] [] smp_apic_timer_interrupt+0x3c/0x50 [ 160.763167] [] apic_timer_interrupt+0x73/0x80 [ 160.763168] [] ? __atomic_notifier_call_chain+0x120/0x120 [ 160.763177] [] ? native_safe_halt+0x6/0x10 [ 160.763180] [] ? trace_hardirqs_on+0xd/0x10 [ 160.763184] [] default_idle+0x29/0x270 [ 160.763185] [] arch_cpu_idle+0xa/0x10 [ 160.763190] [] cpu_startup_entry+0x2e9/0x660 [ 160.763192] [] ? clockevents_register_device+0xec/0x1c0 [ 160.763195] [] start_secondary+0x147/0x190 [ 160.763197] rcu_preempt kthread starved for 10502 jiffies! [ 160.783089] INFO: rcu_sched detected stalls on CPUs/tasks: [ 160.783094] 0: (1 GPs behind) idle=78b/140000000000002/0 softirq=6086/6100 fqs=10501 [ 160.783094] (detected by 1, t=10503 jiffies, g=-273, c=-274, q=1) [ 160.783098] Task dump for CPU 0: [ 160.783099] syz-executor.1 R running task 12168 5483 1 0x0000000c [ 160.783108] 0000000000000000 0000000000000000 0000000000000000 0000000000000000 [ 160.783110] 0000000000000000 0000000000000000 0000000000000000 ffff8800b3f13c28 [ 160.783113] 0000000000000000 ffff8800b558e400 ffff8800b0a3c800 0000000000000000 [ 160.783115] Call Trace: [ 160.783125] [] ? rtnetlink_rcv_msg+0x83/0x230 [ 160.783131] [] ? mutex_lock_nested+0x32e/0x610 [ 160.783133] [] ? rtnetlink_rcv+0x1a/0x40 [ 160.783134] [] ? rtnetlink_rcv+0x40/0x40 [ 160.783139] [] ? netlink_rcv_skb+0xa9/0xd0 [ 160.783140] [] ? rtnetlink_rcv+0x29/0x40 [ 160.783142] [] ? netlink_unicast+0x1ca/0x2e0 [ 160.783144] [] ? netlink_unicast+0x148/0x2e0 [ 160.783146] [] ? netlink_sendmsg+0x310/0x3d0 [ 160.783149] [] ? sock_sendmsg+0x35/0x40 [ 160.783151] [] ? SYSC_sendto+0xf2/0x170 [ 160.783156] [] ? ___might_sleep+0x205/0x270 [ 160.783159] [] ? trace_hardirqs_on_caller+0x155/0x200 [ 160.783165] [] ? lockdep_sys_exit_thunk+0x12/0x14 [ 160.783167] [] ? SyS_sendto+0x9/0x10 [ 160.783170] [] ? system_call_fastpath+0x16/0x7a [ 161.109676] [ 161.111572] 0: (1 GPs behind) idle=78b/140000000000002/0 softirq=6086/6100 fqs=10534 [ 161.119593] (t=10536 jiffies g=-273 c=-274 q=1) [ 161.124527] Task dump for CPU 0: [ 161.127859] syz-executor.1 R running task 12168 5483 1 0x0000000c [ 161.135268] ffff8800b8bd0150 ffff88012c003790 ffffffff811a3242 0000000000000001 [ 161.143310] 0000000000000000 ffffffff8325de80 0000000000000086 ffff88012c0037b0 [ 161.151321] ffffffff811a7728 ffffffff8325de80 0000000000000001 ffff88012c0037e0 [ 161.159365] Call Trace: [ 161.161922] [] sched_show_task+0xf2/0x1a0 [ 161.168441] [] dump_cpu_task+0x38/0x40 [ 161.173952] [] rcu_dump_cpu_stacks+0x90/0xe0 [ 161.179984] [] rcu_check_callbacks+0x8bd/0xd70 [ 161.186192] [] update_process_times+0x34/0x60 [ 161.192316] [] tick_sched_handle.isra.22+0x20/0x60 [ 161.198870] [] tick_sched_timer+0x3c/0x80 [ 161.204643] [] __run_hrtimer+0xe6/0x760 [ 161.210245] [] ? hrtimer_interrupt+0x88/0x230 [ 161.216363] [] ? tick_sched_do_timer+0x50/0x50 [ 161.222572] [] hrtimer_interrupt+0x103/0x230 [ 161.228621] [] local_apic_timer_interrupt+0x35/0x60 [ 161.235264] [] smp_apic_timer_interrupt+0x3c/0x50 [ 161.241735] [] apic_timer_interrupt+0x73/0x80 [ 161.247855] [] ? __list_add+0x4/0xd0 [ 161.253208] [] hhf_dequeue+0x16e/0x190 [ 161.258719] [] __qdisc_run+0x67/0x1c0 [ 161.264147] [] __dev_queue_xmit+0x406/0x950 [ 161.270090] [] ? __dev_queue_xmit+0x4b/0x950 [ 161.276128] [] ? mark_held_locks+0x75/0xc0 [ 161.281989] [] ? ip6_finish_output2+0x4c9/0x7d0 [ 161.288281] [] dev_queue_xmit_sk+0xe/0x10 [ 161.294102] [] ip6_finish_output2+0x542/0x7d0 [ 161.300225] [] ? ip6_finish_output+0xa4/0x1e0 [ 161.306359] [] ? debug_lockdep_rcu_enabled+0x1d/0x20 [ 161.313092] [] ip6_finish_output+0xa4/0x1e0 [ 161.319130] [] ip6_output+0x49/0x190 [ 161.324474] [] ? nf_hook_slow+0x6a/0x1e0 [ 161.330159] [] ? ip6_fragment+0xf10/0xf10 [ 161.335931] [] NF_HOOK_THRESH.constprop.39+0x2f/0xd0 [ 161.342656] [] ? icmp6_dst_alloc+0x1ba/0x310 [ 161.348698] [] ? ip6_mc_leave_src+0x80/0x80 [ 161.354642] [] mld_sendpack+0x1a3/0x360 [ 161.360242] [] ? igmp6_mcf_seq_next+0x170/0x170 [ 161.366534] [] mld_ifc_timer_expire+0x19d/0x2e0 [ 161.372825] [] ? mld_dad_timer_expire+0x70/0x70 [ 161.379117] [] call_timer_fn+0xa5/0x520 [ 161.384715] [] ? msleep_interruptible+0x80/0x80 [ 161.391009] [] run_timer_softirq+0x2ac/0x4a0 [ 161.397044] [] ? mld_dad_timer_expire+0x70/0x70 [ 161.403513] [] ? kernfs_add_one+0x22/0x170 [ 161.409467] [] __do_softirq+0x15c/0x6c0 [ 161.415067] [] ? kernfs_add_one+0x22/0x170 [ 161.420926] [] irq_exit+0xc5/0xe0 [ 161.426009] [] smp_apic_timer_interrupt+0x41/0x50 [ 161.432480] [] apic_timer_interrupt+0x73/0x80 [ 161.438599] [] ? lock_acquire+0x33/0x310 [ 161.445029] [] ? __might_sleep+0x48/0x90 [ 161.450719] [] ? kernfs_add_one+0x22/0x170 [ 161.456581] [] mutex_lock_nested+0x5e/0x610 [ 161.462529] [] ? kernfs_add_one+0x22/0x170 [ 161.468392] [] ? ida_simple_get+0x85/0x100 [ 161.474254] [] kernfs_add_one+0x22/0x170 [ 161.479944] [] __kernfs_create_file+0xa0/0xd0 [ 161.486064] [] sysfs_add_file_mode_ns+0x91/0x1e0 [ 161.492463] [] internal_create_group+0xe6/0x2c0 [ 161.498760] [] sysfs_create_groups+0x49/0xa0 [ 161.504798] [] device_add+0x64b/0x680 [ 161.510227] [] netdev_register_kobject+0x8d/0x170 [ 161.516695] [] ? raw_notifier_call_chain+0x11/0x20 [ 161.523251] [] register_netdevice+0x382/0x4c0 [ 161.529373] [] veth_newlink+0x115/0x2e0 [ 161.534973] [] rtnl_newlink+0x72f/0x8e0 [ 161.540571] [] ? rtnl_newlink+0x14e/0x8e0 [ 161.546354] [] ? debug_lockdep_rcu_enabled+0x1d/0x20 [ 161.553088] [] rtnetlink_rcv_msg+0x83/0x230 [ 161.559034] [] ? mutex_lock_nested+0x32e/0x610 [ 161.565239] [] ? rtnetlink_rcv+0x1a/0x40 [ 161.570927] [] ? rtnetlink_rcv+0x40/0x40 [ 161.576615] [] netlink_rcv_skb+0xa9/0xd0 [ 161.582300] [] rtnetlink_rcv+0x29/0x40 [ 161.587812] [] netlink_unicast+0x1ca/0x2e0 [ 161.593671] [] ? netlink_unicast+0x148/0x2e0 [ 161.599704] [] netlink_sendmsg+0x310/0x3d0 [ 161.605567] [] sock_sendmsg+0x35/0x40 [ 161.610993] [] SYSC_sendto+0xf2/0x170 [ 161.616423] [] ? ___might_sleep+0x205/0x270 [ 161.622369] [] ? trace_hardirqs_on_caller+0x155/0x200 [ 161.629186] [] ? lockdep_sys_exit_thunk+0x12/0x14 [ 161.635654] [] SyS_sendto+0x9/0x10 [ 161.640820] [] system_call_fastpath+0x16/0x7a