Warning: Permanently added '10.128.10.37' (ECDSA) to the list of known hosts. syzkaller login: [ 72.954458][ T9747] IPVS: ftp: loaded support on port[0] = 21 [ 73.000536][ T9747] chnl_net:caif_netlink_parms(): no params data found [ 73.021200][ T9747] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.028780][ T9747] bridge0: port 1(bridge_slave_0) entered disabled state [ 73.036252][ T9747] device bridge_slave_0 entered promiscuous mode [ 73.043484][ T9747] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.050548][ T9747] bridge0: port 2(bridge_slave_1) entered disabled state [ 73.058178][ T9747] device bridge_slave_1 entered promiscuous mode [ 73.071526][ T9747] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 73.081887][ T9747] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 73.097727][ T9747] team0: Port device team_slave_0 added [ 73.104436][ T9747] team0: Port device team_slave_1 added [ 73.184612][ T9747] device hsr_slave_0 entered promiscuous mode [ 73.233385][ T9747] device hsr_slave_1 entered promiscuous mode [ 73.308029][ T9747] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.315132][ T9747] bridge0: port 2(bridge_slave_1) entered forwarding state [ 73.322385][ T9747] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.329450][ T9747] bridge0: port 1(bridge_slave_0) entered forwarding state [ 73.353758][ T9747] 8021q: adding VLAN 0 to HW filter on device bond0 [ 73.364970][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 73.373332][ T12] bridge0: port 1(bridge_slave_0) entered disabled state [ 73.380629][ T12] bridge0: port 2(bridge_slave_1) entered disabled state [ 73.388528][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 73.398454][ T9747] 8021q: adding VLAN 0 to HW filter on device team0 [ 73.407552][ T3517] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 73.415894][ T3517] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.422916][ T3517] bridge0: port 1(bridge_slave_0) entered forwarding state [ 73.432413][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 73.440715][ T12] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.447767][ T12] bridge0: port 2(bridge_slave_1) entered forwarding state [ 73.461426][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 73.470112][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 73.479813][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 73.490111][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 73.500381][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready executing program [ 73.509849][ T9747] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 73.524782][ T9747] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 178.653000][ C0] rcu: INFO: rcu_preempt self-detected stall on CPU [ 178.659638][ C0] rcu: 0-...!: (1 GPs behind) idle=286/1/0x4000000000000002 softirq=9792/9796 fqs=5 [ 178.669151][ C0] (t=10500 jiffies g=8797 q=44) [ 178.674069][ C0] rcu: rcu_preempt kthread starved for 10490 jiffies! g8797 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1 [ 178.685138][ C0] rcu: RCU grace-period kthread stack dump: [ 178.691015][ C0] rcu_preempt R running task 29688 10 2 0x80004000 [ 178.698891][ C0] Call Trace: [ 178.702168][ C0] __schedule+0x755/0x1580 [ 178.706580][ C0] ? __sched_text_start+0x8/0x8 [ 178.711413][ C0] schedule+0xd9/0x260 [ 178.715461][ C0] schedule_timeout+0x486/0xc50 [ 178.720288][ C0] ? rwlock_bug.part.0+0x90/0x90 [ 178.725205][ C0] ? usleep_range+0x170/0x170 [ 178.729875][ C0] ? trace_hardirqs_on+0x67/0x240 [ 178.734882][ C0] ? __kasan_check_read+0x11/0x20 [ 178.739891][ C0] ? __next_timer_interrupt+0x1a0/0x1a0 [ 178.745419][ C0] ? swake_up_one+0x60/0x60 [ 178.749901][ C0] rcu_gp_kthread+0x9b2/0x18c0 [ 178.754660][ C0] ? rcu_barrier+0x310/0x310 [ 178.759227][ C0] ? trace_hardirqs_on+0x67/0x240 [ 178.764229][ C0] ? __kasan_check_read+0x11/0x20 [ 178.769234][ C0] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 178.775453][ C0] ? __kthread_parkme+0x108/0x1c0 [ 178.780453][ C0] ? __kasan_check_read+0x11/0x20 [ 178.785454][ C0] kthread+0x361/0x430 [ 178.789502][ C0] ? rcu_barrier+0x310/0x310 [ 178.794069][ C0] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 178.800288][ C0] ret_from_fork+0x24/0x30 [ 178.804687][ C0] NMI backtrace for cpu 0 [ 178.808997][ C0] CPU: 0 PID: 12 Comm: kworker/0:1 Not tainted 5.3.0-rc8+ #0 [ 178.816342][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 178.826389][ C0] Workqueue: ipv6_addrconf addrconf_dad_work [ 178.832340][ C0] Call Trace: [ 178.835609][ C0] [ 178.838440][ C0] dump_stack+0x172/0x1f0 [ 178.842749][ C0] nmi_cpu_backtrace.cold+0x70/0xb2 [ 178.847925][ C0] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 178.854145][ C0] ? lapic_can_unplug_cpu.cold+0x45/0x45 [ 178.859755][ C0] nmi_trigger_cpumask_backtrace+0x23b/0x28b [ 178.865724][ C0] arch_trigger_cpumask_backtrace+0x14/0x20 [ 178.871593][ C0] rcu_dump_cpu_stacks+0x183/0x1cf [ 178.876686][ C0] rcu_sched_clock_irq.cold+0x4dd/0xc13 [ 178.882210][ C0] ? raise_softirq+0x138/0x340 [ 178.886957][ C0] update_process_times+0x32/0x80 [ 178.891958][ C0] tick_sched_handle+0xa2/0x190 [ 178.896799][ C0] tick_sched_timer+0x53/0x140 [ 178.901543][ C0] __hrtimer_run_queues+0x364/0xe40 [ 178.906721][ C0] ? tick_sched_do_timer+0x1b0/0x1b0 [ 178.911985][ C0] ? hrtimer_start_range_ns+0xcb0/0xcb0 [ 178.917507][ C0] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 178.923202][ C0] ? ktime_get_update_offsets_now+0x2d3/0x440 [ 178.929246][ C0] hrtimer_interrupt+0x314/0x770 [ 178.934167][ C0] smp_apic_timer_interrupt+0x160/0x610 [ 178.939689][ C0] apic_timer_interrupt+0xf/0x20 [ 178.944601][ C0] [ 178.947521][ C0] RIP: 0010:hhf_dequeue+0x58/0xa20 [ 178.952612][ C0] Code: 48 c1 e8 03 4c 01 e0 48 89 45 c0 49 8d 85 90 03 00 00 48 89 45 c8 48 c1 e8 03 48 89 45 b8 e8 1f 1a ac fb 48 8b 45 c0 80 38 00 <0f> 85 a8 07 00 00 48 8b 75 d0 49 8b 85 80 03 00 00 49 89 f6 48 39 [ 178.972410][ C0] RSP: 0018:ffff8880a98d6d58 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 178.980799][ C0] RAX: ffffed10124f8628 RBX: ffff8880927c30b8 RCX: ffffffff85c660f9 [ 178.988749][ C0] RDX: 0000000000000000 RSI: ffffffff85c65ad1 RDI: ffff8880927c30c0 [ 178.996699][ C0] RBP: ffff8880a98d6da8 R08: ffff8880a98c2300 R09: 0000000000000000 [ 179.004649][ C0] R10: fffffbfff134afaf R11: ffff8880a98c2300 R12: dffffc0000000000 [ 179.012597][ C0] R13: ffff8880927c2dc0 R14: ffff8880927c3158 R15: ffff8880927c3150 [ 179.020554][ C0] ? hhf_dequeue+0x679/0xa20 [ 179.025123][ C0] ? hhf_dequeue+0x51/0xa20 [ 179.029604][ C0] ? hhf_dequeue+0x51/0xa20 [ 179.034087][ C0] __qdisc_run+0x1e7/0x19d0 [ 179.038568][ C0] ? dev_queue_xmit+0x18/0x20 [ 179.043250][ C0] __dev_queue_xmit+0x16f1/0x3650 [ 179.048250][ C0] ? __local_bh_enable_ip+0x15a/0x270 [ 179.053704][ C0] ? netdev_core_pick_tx+0x2f0/0x2f0 [ 179.058969][ C0] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 179.065184][ C0] ? br_nf_post_routing+0xd73/0x1d30 [ 179.070450][ C0] ? br_forward_finish+0x235/0x400 [ 179.075542][ C0] ? __kasan_check_read+0x11/0x20 [ 179.080543][ C0] ? __dev_queue_xmit+0x2b15/0x3650 [ 179.085722][ C0] dev_queue_xmit+0x18/0x20 [ 179.090204][ C0] ? dev_queue_xmit+0x18/0x20 [ 179.094861][ C0] br_dev_queue_push_xmit+0x3f3/0x5c0 [ 179.100223][ C0] ? nf_hook_slow+0xf0/0x1e0 [ 179.104794][ C0] br_forward_finish+0xfa/0x400 [ 179.109628][ C0] ? br_dev_queue_push_xmit+0x5c0/0x5c0 [ 179.115152][ C0] ? br_fdb_add.cold+0x8c/0x8c [ 179.119896][ C0] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 179.125593][ C0] ? nf_hook_slow+0xf0/0x1e0 [ 179.130162][ C0] __br_forward+0x641/0xb00 [ 179.134655][ C0] ? br_forward_finish+0x400/0x400 [ 179.139769][ C0] ? br_dev_queue_push_xmit+0x5c0/0x5c0 [ 179.145294][ C0] deliver_clone+0x61/0xc0 [ 179.149701][ C0] maybe_deliver+0x2c7/0x390 [ 179.154268][ C0] br_flood+0x13a/0x3d0 [ 179.158405][ C0] br_dev_xmit+0x98c/0x15a0 [ 179.162888][ C0] ? br_poll_controller+0x10/0x10 [ 179.167911][ C0] ? netif_skb_features+0x6c2/0xb90 [ 179.173086][ C0] ? netdev_set_sb_channel+0xe0/0xe0 [ 179.178351][ C0] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 179.184568][ C0] ? validate_xmit_xfrm+0x43c/0xf10 [ 179.189744][ C0] ? rwlock_bug.part.0+0x90/0x90 [ 179.194661][ C0] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 179.200882][ C0] dev_hard_start_xmit+0x1a3/0x9c0 [ 179.205976][ C0] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 179.212195][ C0] __dev_queue_xmit+0x2b15/0x3650 [ 179.217213][ C0] ? ndisc_constructor+0x1a5/0xb40 [ 179.222305][ C0] ? netdev_core_pick_tx+0x2f0/0x2f0 [ 179.227929][ C0] ? ip6_finish_output2+0x1034/0x2520 [ 179.233282][ C0] ? __kasan_check_read+0x11/0x20 [ 179.238297][ C0] ? lock_downgrade+0x920/0x920 [ 179.243135][ C0] dev_queue_xmit+0x18/0x20 [ 179.247618][ C0] ? dev_queue_xmit+0x18/0x20 [ 179.252274][ C0] neigh_resolve_output+0x5a5/0x970 [ 179.257453][ C0] ip6_finish_output2+0x1034/0x2520 [ 179.262741][ C0] ? ip6_forward_finish+0x530/0x530 [ 179.267918][ C0] ? lock_downgrade+0x920/0x920 [ 179.272745][ C0] ? ip6_mtu+0x16f/0x460 [ 179.276970][ C0] __ip6_finish_output+0x444/0xa50 [ 179.282056][ C0] ? __ip6_finish_output+0x444/0xa50 [ 179.287318][ C0] ip6_finish_output+0x38/0x1f0 [ 179.292145][ C0] ip6_output+0x235/0x7c0 [ 179.296468][ C0] ? ip6_finish_output+0x1f0/0x1f0 [ 179.301557][ C0] ? __ip6_finish_output+0xa50/0xa50 [ 179.306830][ C0] ? ndisc_send_skb+0x803/0x1450 [ 179.312707][ C0] ndisc_send_skb+0xf29/0x1450 [ 179.317456][ C0] ? nf_hook.constprop.0+0x560/0x560 [ 179.322721][ C0] ? skb_set_owner_w+0x21b/0x320 [ 179.327637][ C0] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 179.333335][ C0] ndisc_send_ns+0x3a9/0x850 [ 179.337904][ C0] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 179.344123][ C0] ? ndisc_netdev_event+0x4e0/0x4e0 [ 179.349300][ C0] ? addrconf_dad_work+0xac4/0x1150 [ 179.354475][ C0] ? trace_hardirqs_on+0x67/0x240 [ 179.359499][ C0] ? addrconf_dad_work+0xac4/0x1150 [ 179.364698][ C0] addrconf_dad_work+0xb88/0x1150 [ 179.369711][ C0] ? addrconf_dad_completed+0xbb0/0xbb0 [ 179.375276][ C0] ? lock_acquire+0x190/0x410 [ 179.379935][ C0] ? trace_hardirqs_on+0x67/0x240 [ 179.384941][ C0] process_one_work+0x9af/0x1740 [ 179.389866][ C0] ? pwq_dec_nr_in_flight+0x320/0x320 [ 179.395214][ C0] ? lock_acquire+0x190/0x410 [ 179.399884][ C0] worker_thread+0x98/0xe40 [ 179.404366][ C0] ? trace_hardirqs_on+0x67/0x240 [ 179.409374][ C0] kthread+0x361/0x430 [ 179.413419][ C0] ? process_one_work+0x1740/0x1740 [ 179.418593][ C0] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 179.424815][ C0] ret_from_fork+0x24/0x30