Warning: Permanently added '10.128.0.121' (ECDSA) to the list of known hosts. syzkaller login: [ 216.013847] kauditd_printk_skb: 2 callbacks suppressed [ 216.013862] audit: type=1400 audit(1567940761.471:36): avc: denied { map } for pid=7636 comm="syz-executor321" path="/root/syz-executor321686554" dev="sda1" ino=1426 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 216.032360] IPVS: ftp: loaded support on port[0] = 21 [ 216.104101] chnl_net:caif_netlink_parms(): no params data found [ 216.136000] bridge0: port 1(bridge_slave_0) entered blocking state [ 216.143014] bridge0: port 1(bridge_slave_0) entered disabled state [ 216.150637] device bridge_slave_0 entered promiscuous mode [ 216.157779] bridge0: port 2(bridge_slave_1) entered blocking state [ 216.164253] bridge0: port 2(bridge_slave_1) entered disabled state [ 216.171253] device bridge_slave_1 entered promiscuous mode [ 216.187022] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 216.196251] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 216.214557] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 216.222241] team0: Port device team_slave_0 added [ 216.227731] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 216.235105] team0: Port device team_slave_1 added [ 216.240481] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 216.247763] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 216.331443] device hsr_slave_0 entered promiscuous mode [ 216.390204] device hsr_slave_1 entered promiscuous mode [ 216.430039] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 216.437033] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 216.450592] bridge0: port 2(bridge_slave_1) entered blocking state [ 216.457194] bridge0: port 2(bridge_slave_1) entered forwarding state [ 216.464211] bridge0: port 1(bridge_slave_0) entered blocking state [ 216.470599] bridge0: port 1(bridge_slave_0) entered forwarding state [ 216.500618] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 216.506727] 8021q: adding VLAN 0 to HW filter on device bond0 [ 216.515123] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 216.524597] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 216.544215] bridge0: port 1(bridge_slave_0) entered disabled state [ 216.551781] bridge0: port 2(bridge_slave_1) entered disabled state [ 216.558840] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 216.569676] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 216.575762] 8021q: adding VLAN 0 to HW filter on device team0 [ 216.585885] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 216.593964] bridge0: port 1(bridge_slave_0) entered blocking state [ 216.600541] bridge0: port 1(bridge_slave_0) entered forwarding state [ 216.609993] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 216.617856] bridge0: port 2(bridge_slave_1) entered blocking state [ 216.624286] bridge0: port 2(bridge_slave_1) entered forwarding state [ 216.640852] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 216.649137] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 216.660764] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 216.673231] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 216.684015] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 216.695094] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready executing program [ 216.703660] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 216.711410] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 216.719738] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 216.731555] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 216.741482] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 321.799443] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 321.805792] rcu: (detected by 1, t=10502 jiffies, g=5317, q=9) [ 321.811865] rcu: All QSes seen, last rcu_preempt kthread activity 10503 (4294969331-4294958828), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 321.824512] kworker/1:2 R running task 27920 7639 2 0x80000008 [ 321.831884] Workqueue: ipv6_addrconf addrconf_dad_work [ 321.837164] Call Trace: [ 321.839744] [ 321.841972] sched_show_task.cold+0x2ee/0x35d [ 321.846469] ? set_rq_offline.part.0+0x140/0x140 [ 321.851254] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 321.856268] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 321.861873] rcu_check_callbacks.cold+0xaa1/0xd90 [ 321.866765] update_process_times+0x32/0x80 [ 321.871111] tick_sched_handle+0xa2/0x190 [ 321.875346] tick_sched_timer+0x47/0x130 [ 321.879426] __hrtimer_run_queues+0x33b/0xdc0 [ 321.883935] ? tick_sched_do_timer+0x1b0/0x1b0 [ 321.888533] ? hrtimer_fixup_activate+0x30/0x30 [ 321.893295] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 321.898309] ? ktime_get_update_offsets_now+0x2d3/0x440 [ 321.903682] hrtimer_interrupt+0x314/0x770 [ 321.907961] smp_apic_timer_interrupt+0x111/0x550 [ 321.912805] apic_timer_interrupt+0xf/0x20 [ 321.917084] RIP: 0010:native_queued_spin_lock_slowpath+0x113/0x9a0 [ 321.923411] Code: 04 02 00 00 00 00 48 8b 45 d0 65 48 33 04 25 28 00 00 00 0f 85 d5 06 00 00 48 83 c4 78 5b 41 5c 41 5d 41 5e 41 5f 5d c3 f3 90 82 8b 45 98 48 8d 55 d8 3d 00 01 00 00 0f 84 a8 02 00 00 30 c0 [ 321.942312] RSP: 0018:ffff8880ae906b28 EFLAGS: 00000202 ORIG_RAX: ffffffffffffff13 [ 321.950021] RAX: 0000000000000000 RBX: ffff88808f4509e8 RCX: ffffffff81530ae4 [ 321.957288] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff88808f4509e8 [ 321.964671] RBP: ffff8880ae906bc8 R08: 1ffff11011e8a13d R09: ffffed1011e8a13e [ 321.971947] R10: ffffed1011e8a13d R11: ffff88808f4509eb R12: 0000000000000001 [ 321.979217] R13: 0000000000000003 R14: ffffed1011e8a13d R15: 0000000000000001 [ 321.986519] ? apic_timer_interrupt+0xa/0x20 [ 321.990951] ? native_queued_spin_lock_slowpath+0xa4/0x9a0 [ 321.996585] ? native_queued_spin_lock_slowpath+0xa4/0x9a0 [ 322.002213] ? .slowpath+0x15/0x15 [ 322.005757] ? lock_acquire+0x16f/0x3f0 [ 322.009907] do_raw_spin_lock+0x19d/0x240 [ 322.014061] _raw_spin_lock+0x37/0x40 [ 322.017948] ? __dev_queue_xmit+0x147c/0x2fe0 [ 322.022452] __dev_queue_xmit+0x147c/0x2fe0 [ 322.026814] ? deliver_clone+0x61/0xc0 [ 322.030703] ? br_flood+0x5fa/0x710 [ 322.034358] ? br_handle_frame_finish+0xf72/0x1510 [ 322.039308] ? br_nf_hook_thresh+0x2e9/0x370 [ 322.043722] ? netdev_pick_tx+0x300/0x300 [ 322.047870] ? do_softirq_own_stack+0x2a/0x40 [ 322.052426] ? do_softirq.part.0+0x11a/0x170 [ 322.056833] ? __local_bh_enable_ip+0x211/0x270 [ 322.061632] ? ip6_finish_output2+0xbc0/0x2550 [ 322.066232] ? ip6_finish_output+0x574/0xbe0 [ 322.070684] ? ndisc_send_skb+0xf3b/0x1460 [ 322.074916] ? ndisc_send_ns+0x3a9/0x850 [ 322.078976] ? addrconf_dad_work+0xb88/0x1150 [ 322.083523] ? worker_thread+0x98/0xe40 [ 322.087499] ? kthread+0x354/0x420 [ 322.091084] ? ret_from_fork+0x24/0x30 [ 322.095014] ? __lock_is_held+0xb6/0x140 [ 322.099114] dev_queue_xmit+0x18/0x20 [ 322.102914] ? dev_queue_xmit+0x18/0x20 [ 322.106891] br_dev_queue_push_xmit+0x405/0x5d0 [ 322.111568] ? br_nf_dev_queue_xmit+0x38c/0x1610 [ 322.116326] br_nf_dev_queue_xmit+0x365/0x1610 [ 322.120921] br_nf_post_routing+0x76f/0x12f0 [ 322.125331] ? find_inlist_lock.constprop.0+0x22a/0x230 [ 322.130702] ? br_nf_dev_queue_xmit+0x1610/0x1610 [ 322.135582] ? ipv6_skip_exthdr+0x5b0/0x5c0 [ 322.140005] ? br_nf_pre_routing_finish_bridge+0xaa0/0xaa0 [ 322.145684] nf_hook_slow+0xbc/0x1e0 [ 322.149405] br_forward_finish+0x215/0x400 [ 322.153648] ? br_dev_queue_push_xmit+0x5d0/0x5d0 [ 322.158507] ? br_fdb_add.cold+0x8a/0x8a [ 322.162587] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 322.167616] ? nf_hook_slow+0xf0/0x1e0 [ 322.171510] br_nf_hook_thresh+0x2e9/0x370 [ 322.175748] ? br_dev_queue_push_xmit+0x5d0/0x5d0 [ 322.180594] ? setup_pre_routing+0x470/0x470 [ 322.185017] ? find_held_lock+0x35/0x130 [ 322.189084] ? br_dev_queue_push_xmit+0x5d0/0x5d0 [ 322.193939] br_nf_forward_finish+0x356/0x700 [ 322.198434] ? br_dev_queue_push_xmit+0x5d0/0x5d0 [ 322.203279] br_nf_forward_ip+0x6b4/0x17c0 [ 322.207523] ? br_nf_forward_finish+0x700/0x700 [ 322.212264] ? refcount_inc_not_zero_checked+0x147/0x200 [ 322.217718] ? br_nf_hook_thresh+0x370/0x370 [ 322.222136] nf_hook_slow+0xbc/0x1e0 [ 322.225855] __br_forward+0x393/0xb30 [ 322.229661] ? br_forward_finish+0x400/0x400 [ 322.234076] ? br_dev_queue_push_xmit+0x5d0/0x5d0 [ 322.238930] deliver_clone+0x61/0xc0 [ 322.242644] br_flood+0x5fa/0x710 [ 322.246105] br_handle_frame_finish+0xf72/0x1510 [ 322.250870] ? br_handle_local_finish+0x20/0x20 [ 322.255541] ? __lock_is_held+0xb6/0x140 [ 322.259609] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 322.264623] ? nf_hook_slow+0xf0/0x1e0 [ 322.268517] br_nf_hook_thresh+0x2e9/0x370 [ 322.272756] ? br_handle_local_finish+0x20/0x20 [ 322.277512] ? setup_pre_routing+0x470/0x470 [ 322.281929] ? br_handle_local_finish+0x20/0x20 [ 322.286620] ? __sanitizer_cov_trace_switch+0x49/0x80 [ 322.291899] br_nf_pre_routing_finish_ipv6+0x6ed/0xd70 [ 322.297186] ? br_handle_local_finish+0x20/0x20 [ 322.301918] ? kasan_check_read+0x11/0x20 [ 322.306074] br_nf_pre_routing_ipv6+0x4a5/0x8ca [ 322.310742] ? br_validate_ipv6+0xb90/0xb90 [ 322.315153] ? br_nf_pre_routing_finish.cold+0x11d/0x11d [ 322.320604] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 322.326180] ? skb_pull_rcsum+0x164/0x340 [ 322.330438] br_nf_pre_routing+0x1016/0x159c [ 322.334863] ? br_nf_pre_routing_finish+0x1960/0x1960 [ 322.340055] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 322.345591] ? ebt_broute+0x127/0x190 [ 322.349401] nf_hook_slow+0xbc/0x1e0 [ 322.353121] br_handle_frame+0x985/0x1480 [ 322.357269] ? br_handle_frame_finish+0x1510/0x1510 [ 322.362287] ? br_handle_local_finish+0x20/0x20 [ 322.366960] ? br_handle_frame_finish+0x1510/0x1510 [ 322.371984] __netif_receive_skb_core+0xac1/0x3570 [ 322.376979] ? __lock_acquire+0x6ee/0x49c0 [ 322.381214] ? find_next_and_bit+0x19a/0x200 [ 322.385623] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 322.391167] ? netif_receive_skb+0x2d0/0x2d0 [ 322.395686] ? mark_held_locks+0x100/0x100 [ 322.399926] ? process_backlog+0x482/0x7a0 [ 322.404172] __netif_receive_skb_one_core+0xa8/0x1a0 [ 322.409277] ? __netif_receive_skb_one_core+0xa8/0x1a0 [ 322.414560] ? __netif_receive_skb_core+0x3570/0x3570 [ 322.419748] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 322.425349] ? check_preemption_disabled+0x48/0x290 [ 322.430366] ? lock_acquire+0x16f/0x3f0 [ 322.434355] __netif_receive_skb+0x2c/0x1d0 [ 322.438678] process_backlog+0x23a/0x7a0 [ 322.442738] ? net_rx_action+0x27b/0x1070 [ 322.446884] ? lockdep_hardirqs_on+0x19b/0x5d0 [ 322.451472] net_rx_action+0x4f5/0x1070 [ 322.455452] ? napi_complete_done+0x500/0x500 [ 322.459945] ? __lock_is_held+0xb6/0x140 [ 322.464021] __do_softirq+0x25c/0x921 [ 322.467824] ? rcu_nmi_exit+0xe4/0x140 [ 322.471721] ? ip6_finish_output2+0xb9f/0x2550 [ 322.476303] do_softirq_own_stack+0x2a/0x40 [ 322.480617] [ 322.482865] do_softirq.part.0+0x11a/0x170 [ 322.487103] __local_bh_enable_ip+0x211/0x270 [ 322.491603] ip6_finish_output2+0xbd2/0x2550 [ 322.496066] ? ip6_mtu+0x2e6/0x460 [ 322.499701] ? ip6_forward_finish+0x4d0/0x4d0 [ 322.504196] ? lock_downgrade+0x810/0x810 [ 322.508349] ? kasan_check_read+0x11/0x20 [ 322.512506] ip6_finish_output+0x574/0xbe0 [ 322.517782] ? ip6_finish_output+0x574/0xbe0 [ 322.522198] ip6_output+0x235/0x7c0 [ 322.525828] ? ip6_finish_output+0xbe0/0xbe0 [ 322.530244] ? ip6_fragment+0x3770/0x3770 [ 322.534495] ndisc_send_skb+0xf3b/0x1460 [ 322.538560] ? nf_hook.constprop.0+0x560/0x560 [ 322.543204] ? skb_set_owner_w+0x24c/0x360 [ 322.547442] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 322.552465] ndisc_send_ns+0x3a9/0x850 [ 322.556352] ? mark_held_locks+0xb1/0x100 [ 322.560509] ? ndisc_netdev_event+0x470/0x470 [ 322.565008] ? lockdep_hardirqs_on+0x415/0x5d0 [ 322.569593] ? addrconf_dad_work+0xac4/0x1150 [ 322.574152] ? trace_hardirqs_on+0x67/0x220 [ 322.578478] ? addrconf_dad_work+0xac4/0x1150 [ 322.582978] addrconf_dad_work+0xb88/0x1150 [ 322.587337] ? addrconf_dad_completed+0xbb0/0xbb0 [ 322.592191] process_one_work+0x989/0x1750 [ 322.596433] ? pwq_dec_nr_in_flight+0x320/0x320 [ 322.601100] ? lock_acquire+0x16f/0x3f0 [ 322.605086] ? kasan_check_write+0x14/0x20 [ 322.609320] ? do_raw_spin_lock+0xc8/0x240 [ 322.613556] worker_thread+0x98/0xe40 [ 322.617354] ? trace_hardirqs_on+0x67/0x220 [ 322.621693] kthread+0x354/0x420 [ 322.625057] ? process_one_work+0x1750/0x1750 [ 322.629562] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 322.635365] ret_from_fork+0x24/0x30 [ 322.639184] rcu: rcu_preempt kthread starved for 10585 jiffies! g5317 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 322.649572] rcu: RCU grace-period kthread stack dump: [ 322.654842] rcu_preempt R running task 29624 10 2 0x80000000 [ 322.662040] Call Trace: [ 322.664633] __schedule+0x866/0x1dc0 [ 322.668354] ? pci_mmcfg_check_reserved+0x170/0x170 [ 322.673381] ? _raw_spin_unlock_irqrestore+0x6b/0xe0 [ 322.678484] ? lockdep_hardirqs_on+0x415/0x5d0 [ 322.683077] ? trace_hardirqs_on+0x67/0x220 [ 322.687405] schedule+0x92/0x1c0 [ 322.690770] schedule_timeout+0x4db/0xfc0 [ 322.694920] ? usleep_range+0x170/0x170 [ 322.698895] ? trace_hardirqs_on+0x67/0x220 [ 322.703214] ? kasan_check_read+0x11/0x20 [ 322.707395] ? __next_timer_interrupt+0x1a0/0x1a0 [ 322.712249] ? prepare_to_swait_exclusive+0x120/0x120 [ 322.717443] rcu_gp_kthread+0xd5c/0x2190 [ 322.721528] ? rcu_blocking_is_gp+0x90/0x90 [ 322.725849] ? trace_hardirqs_on+0x67/0x220 [ 322.730172] ? kasan_check_read+0x11/0x20 [ 322.734324] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 322.739430] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 322.744969] ? __kthread_parkme+0xfb/0x1b0 [ 322.749206] kthread+0x354/0x420 [ 322.752574] ? rcu_blocking_is_gp+0x90/0x90 [ 322.756897] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 322.762534] ret_from_fork+0x24/0x30