Warning: Permanently added '10.128.0.101' (ECDSA) to the list of known hosts. syzkaller login: [ 259.227289][ T8740] IPVS: ftp: loaded support on port[0] = 21 [ 259.289259][ T8740] chnl_net:caif_netlink_parms(): no params data found [ 259.316771][ T8740] bridge0: port 1(bridge_slave_0) entered blocking state [ 259.324338][ T8740] bridge0: port 1(bridge_slave_0) entered disabled state [ 259.332075][ T8740] device bridge_slave_0 entered promiscuous mode [ 259.340226][ T8740] bridge0: port 2(bridge_slave_1) entered blocking state [ 259.347537][ T8740] bridge0: port 2(bridge_slave_1) entered disabled state [ 259.355254][ T8740] device bridge_slave_1 entered promiscuous mode [ 259.372287][ T8740] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 259.383973][ T8740] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 259.403666][ T8740] team0: Port device team_slave_0 added [ 259.411405][ T8740] team0: Port device team_slave_1 added [ 259.486866][ T8740] device hsr_slave_0 entered promiscuous mode [ 259.524687][ T8740] device hsr_slave_1 entered promiscuous mode [ 259.572635][ T8740] bridge0: port 2(bridge_slave_1) entered blocking state [ 259.579814][ T8740] bridge0: port 2(bridge_slave_1) entered forwarding state [ 259.587681][ T8740] bridge0: port 1(bridge_slave_0) entered blocking state [ 259.594771][ T8740] bridge0: port 1(bridge_slave_0) entered forwarding state [ 259.629676][ T8740] 8021q: adding VLAN 0 to HW filter on device bond0 [ 259.640889][ T3720] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 259.661021][ T3720] bridge0: port 1(bridge_slave_0) entered disabled state [ 259.670091][ T3720] bridge0: port 2(bridge_slave_1) entered disabled state [ 259.679269][ T3720] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 259.690511][ T8740] 8021q: adding VLAN 0 to HW filter on device team0 [ 259.701356][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 259.710150][ T12] bridge0: port 1(bridge_slave_0) entered blocking state [ 259.717251][ T12] bridge0: port 1(bridge_slave_0) entered forwarding state [ 259.736449][ T3720] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 259.745331][ T3720] bridge0: port 2(bridge_slave_1) entered blocking state [ 259.752568][ T3720] bridge0: port 2(bridge_slave_1) entered forwarding state [ 259.760813][ T3720] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 259.769560][ T3720] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 259.778859][ T3720] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 259.789649][ T3034] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 259.801272][ T8740] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 259.813454][ T8740] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 259.822871][ T3034] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready executing program [ 259.840619][ T8740] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 364.874208][ C1] rcu: INFO: rcu_preempt self-detected stall on CPU [ 364.881005][ C1] rcu: 1-...!: (10499 ticks this GP) idle=8a6/1/0x4000000000000002 softirq=8658/8658 fqs=20 [ 364.891422][ C1] (t=10500 jiffies g=7193 q=86) [ 364.896345][ C1] rcu: rcu_preempt kthread starved for 10460 jiffies! g7193 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 364.907441][ C1] rcu: RCU grace-period kthread stack dump: [ 364.913309][ C1] rcu_preempt R running task 29440 10 2 0x80004000 [ 364.921195][ C1] Call Trace: [ 364.924529][ C1] __schedule+0x755/0x1580 [ 364.928933][ C1] ? __sched_text_start+0x8/0x8 [ 364.933765][ C1] ? _raw_spin_unlock_irqrestore+0x6b/0xe0 [ 364.939555][ C1] ? schedule_timeout+0x47c/0xc50 [ 364.944572][ C1] ? lockdep_hardirqs_on+0x418/0x5d0 [ 364.950539][ C1] schedule+0xd9/0x260 [ 364.954592][ C1] schedule_timeout+0x486/0xc50 [ 364.961170][ C1] ? _raw_spin_unlock_irqrestore+0x6b/0xe0 [ 364.966959][ C1] ? usleep_range+0x170/0x170 [ 364.971616][ C1] ? trace_hardirqs_on+0x67/0x240 [ 364.976635][ C1] ? __kasan_check_read+0x11/0x20 [ 364.981644][ C1] ? __next_timer_interrupt+0x1a0/0x1a0 [ 364.987172][ C1] ? swake_up_one+0x60/0x60 [ 364.991662][ C1] rcu_gp_kthread+0x9b2/0x18c0 [ 364.996414][ C1] ? rcu_barrier+0x310/0x310 [ 365.000985][ C1] ? trace_hardirqs_on+0x67/0x240 [ 365.005997][ C1] ? __kasan_check_read+0x11/0x20 [ 365.011033][ C1] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 365.017276][ C1] ? __kthread_parkme+0x108/0x1c0 [ 365.022290][ C1] ? __kasan_check_read+0x11/0x20 [ 365.027304][ C1] kthread+0x361/0x430 [ 365.031357][ C1] ? rcu_barrier+0x310/0x310 [ 365.035929][ C1] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 365.042154][ C1] ret_from_fork+0x24/0x30 [ 365.046573][ C1] NMI backtrace for cpu 1 [ 365.050888][ C1] CPU: 1 PID: 3720 Comm: kworker/1:2 Not tainted 5.3.0-rc7+ #0 [ 365.058548][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 365.068638][ C1] Workqueue: ipv6_addrconf addrconf_dad_work [ 365.075309][ C1] Call Trace: [ 365.078575][ C1] [ 365.081452][ C1] dump_stack+0x172/0x1f0 [ 365.085768][ C1] nmi_cpu_backtrace.cold+0x70/0xb2 [ 365.090962][ C1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 365.097187][ C1] ? lapic_can_unplug_cpu.cold+0x45/0x45 [ 365.102801][ C1] nmi_trigger_cpumask_backtrace+0x23b/0x28b [ 365.108768][ C1] arch_trigger_cpumask_backtrace+0x14/0x20 [ 365.114641][ C1] rcu_dump_cpu_stacks+0x183/0x1cf [ 365.119739][ C1] rcu_sched_clock_irq.cold+0x4dd/0xc13 [ 365.125270][ C1] ? raise_softirq+0x138/0x340 [ 365.130020][ C1] update_process_times+0x32/0x80 [ 365.135027][ C1] tick_sched_handle+0xa2/0x190 [ 365.139873][ C1] tick_sched_timer+0x53/0x140 [ 365.144638][ C1] __hrtimer_run_queues+0x364/0xe40 [ 365.149831][ C1] ? tick_sched_do_timer+0x1b0/0x1b0 [ 365.155099][ C1] ? hrtimer_start_range_ns+0xcb0/0xcb0 [ 365.160626][ C1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 365.166325][ C1] ? ktime_get_update_offsets_now+0x2d3/0x440 [ 365.172482][ C1] hrtimer_interrupt+0x314/0x770 [ 365.177469][ C1] smp_apic_timer_interrupt+0x160/0x610 [ 365.182996][ C1] apic_timer_interrupt+0xf/0x20 [ 365.187910][ C1] [ 365.190831][ C1] RIP: 0010:write_comp_data+0x1e/0x70 [ 365.196192][ C1] Code: 48 89 34 d1 48 89 11 5d c3 0f 1f 00 65 4c 8b 04 25 40 fe 01 00 65 8b 05 58 88 8f 7e a9 00 01 1f 00 75 51 41 8b 80 f0 12 00 00 <83> f8 03 75 45 49 8b 80 f8 12 00 00 45 8b 80 f4 12 00 00 4c 8b 08 [ 365.215774][ C1] RSP: 0018:ffff88809bf5ed40 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 365.224282][ C1] RAX: 0000000000000000 RBX: ffff88808b9f42f8 RCX: ffffffff85c7e0d1 [ 365.232243][ C1] RDX: 0000000000000001 RSI: 0000000000000000 RDI: 0000000000000001 [ 365.240200][ C1] RBP: ffff88809bf5ed48 R08: ffff88809bf4e240 R09: fffffbfff14e9755 [ 365.248152][ C1] R10: ffff88809bf4ec38 R11: ffff88809bf4e240 R12: dffffc0000000000 [ 365.256104][ C1] R13: ffff88808b9f4000 R14: 0000000000000001 R15: 0000000000000000 [ 365.264128][ C1] ? hhf_dequeue+0x5d1/0xa20 [ 365.268724][ C1] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 365.274945][ C1] hhf_dequeue+0x5d1/0xa20 [ 365.279408][ C1] __qdisc_run+0x1e7/0x19d0 [ 365.283945][ C1] ? dev_queue_xmit+0x18/0x20 [ 365.288623][ C1] __dev_queue_xmit+0x16f1/0x3650 [ 365.293630][ C1] ? __local_bh_enable_ip+0x15a/0x270 [ 365.298989][ C1] ? netdev_core_pick_tx+0x2f0/0x2f0 [ 365.304259][ C1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 365.310542][ C1] ? br_nf_post_routing+0xd73/0x1d30 [ 365.315858][ C1] ? br_forward_finish+0x235/0x400 [ 365.320961][ C1] ? find_held_lock+0x35/0x130 [ 365.325707][ C1] ? br_forward_finish+0x235/0x400 [ 365.330807][ C1] dev_queue_xmit+0x18/0x20 [ 365.335468][ C1] ? dev_queue_xmit+0x18/0x20 [ 365.340128][ C1] br_dev_queue_push_xmit+0x3f3/0x5c0 [ 365.345567][ C1] ? __kasan_check_read+0x11/0x20 [ 365.350602][ C1] br_forward_finish+0xfa/0x400 [ 365.355547][ C1] ? br_dev_queue_push_xmit+0x5c0/0x5c0 [ 365.361089][ C1] ? br_fdb_add.cold+0x8c/0x8c [ 365.365928][ C1] ? __kasan_check_read+0x11/0x20 [ 365.370937][ C1] __br_forward+0x641/0xb00 [ 365.375428][ C1] ? br_forward_finish+0x400/0x400 [ 365.380554][ C1] ? br_dev_queue_push_xmit+0x5c0/0x5c0 [ 365.386097][ C1] deliver_clone+0x61/0xc0 [ 365.390510][ C1] maybe_deliver+0x2c7/0x390 [ 365.395089][ C1] br_flood+0x13a/0x3d0 [ 365.399238][ C1] br_dev_xmit+0x98c/0x15a0 [ 365.403724][ C1] ? br_poll_controller+0x10/0x10 [ 365.408731][ C1] ? netif_skb_features+0x6c2/0xb90 [ 365.413916][ C1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 365.420139][ C1] dev_hard_start_xmit+0x1a3/0x9c0 [ 365.425242][ C1] __dev_queue_xmit+0x2b15/0x3650 [ 365.430250][ C1] ? __kasan_check_read+0x11/0x20 [ 365.435279][ C1] ? __lock_acquire+0x1702/0x4c30 [ 365.440290][ C1] ? netdev_core_pick_tx+0x2f0/0x2f0 [ 365.445564][ C1] ? ip6_finish_output2+0x1034/0x2520 [ 365.450921][ C1] ? __kasan_check_read+0x11/0x20 [ 365.455926][ C1] ? mark_lock+0xc0/0x11e0 [ 365.460337][ C1] ? mark_held_locks+0xa4/0xf0 [ 365.465088][ C1] dev_queue_xmit+0x18/0x20 [ 365.469581][ C1] ? dev_queue_xmit+0x18/0x20 [ 365.474321][ C1] neigh_resolve_output+0x5a5/0x970 [ 365.479517][ C1] ip6_finish_output2+0x1034/0x2520 [ 365.484735][ C1] ? ip6_mtu+0x2e6/0x460 [ 365.488966][ C1] ? ip6_forward_finish+0x530/0x530 [ 365.494143][ C1] ? lock_downgrade+0x920/0x920 [ 365.498983][ C1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 365.505216][ C1] ? __kasan_check_read+0x11/0x20 [ 365.510314][ C1] __ip6_finish_output+0x444/0xa50 [ 365.515418][ C1] ? __ip6_finish_output+0x444/0xa50 [ 365.520704][ C1] ip6_finish_output+0x38/0x1f0 [ 365.525548][ C1] ip6_output+0x235/0x7c0 [ 365.529865][ C1] ? ip6_finish_output+0x1f0/0x1f0 [ 365.534962][ C1] ? __ip6_finish_output+0xa50/0xa50 [ 365.540296][ C1] ndisc_send_skb+0xf29/0x1450 [ 365.545048][ C1] ? nf_hook.constprop.0+0x560/0x560 [ 365.550348][ C1] ? skb_set_owner_w+0x21b/0x320 [ 365.555269][ C1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 365.560972][ C1] ndisc_send_ns+0x3a9/0x850 [ 365.565548][ C1] ? mark_held_locks+0xa4/0xf0 [ 365.570295][ C1] ? ndisc_netdev_event+0x4e0/0x4e0 [ 365.575481][ C1] ? lockdep_hardirqs_on+0x418/0x5d0 [ 365.580747][ C1] ? addrconf_dad_work+0xac4/0x1150 [ 365.585935][ C1] ? trace_hardirqs_on+0x67/0x240 [ 365.590942][ C1] ? addrconf_dad_work+0xac4/0x1150 [ 365.596122][ C1] addrconf_dad_work+0xb88/0x1150 [ 365.601131][ C1] ? addrconf_dad_completed+0xbb0/0xbb0 [ 365.606665][ C1] process_one_work+0x9af/0x1740 [ 365.611598][ C1] ? pwq_dec_nr_in_flight+0x320/0x320 [ 365.616947][ C1] ? lock_acquire+0x190/0x410 [ 365.621627][ C1] worker_thread+0x98/0xe40 [ 365.626115][ C1] ? trace_hardirqs_on+0x67/0x240 [ 365.631128][ C1] kthread+0x361/0x430 [ 365.635181][ C1] ? process_one_work+0x1740/0x1740 [ 365.640367][ C1] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 365.646597][ C1] ret_from_fork+0x24/0x30