IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready
==================================================================
BUG: KCSAN: data-race in fib6_ifup / find_match

read to 0xffff8880a6b246af of 1 bytes by interrupt on cpu 0:
 find_match+0x52/0x7f0 net/ipv6/route.c:744
 __find_rr_leaf+0xe3/0x780 net/ipv6/route.c:835
 find_rr_leaf net/ipv6/route.c:856 [inline]
 rt6_select net/ipv6/route.c:900 [inline]
 fib6_table_lookup+0x383/0x650 net/ipv6/route.c:2168
 ip6_pol_route+0xee/0x5c0 net/ipv6/route.c:2204
 ip6_pol_route_input+0x4d/0x70 net/ipv6/route.c:2262
 fib6_rule_lookup+0x95/0x470 net/ipv6/fib6_rules.c:113
 ip6_route_input_lookup+0x9f/0xc0 net/ipv6/route.c:2274
 ip6_route_input+0x41e/0x4b0 net/ipv6/route.c:2446
 ip6_rcv_finish_core.isra.0+0x97/0x1f0 net/ipv6/ip6_input.c:63
 ip6_rcv_finish+0xee/0x140 net/ipv6/ip6_input.c:74
 ip_sabotage_in net/bridge/br_netfilter_hooks.c:867 [inline]
 ip_sabotage_in+0x121/0x130 net/bridge/br_netfilter_hooks.c:858
 nf_hook_entry_hookfn include/linux/netfilter.h:135 [inline]
 nf_hook_slow+0x83/0x160 net/netfilter/core.c:512
 nf_hook include/linux/netfilter.h:260 [inline]
 NF_HOOK include/linux/netfilter.h:303 [inline]
 ipv6_rcv+0x141/0x1b0 net/ipv6/ip6_input.c:284
 __netif_receive_skb_one_core+0xa7/0xe0 net/core/dev.c:4929
 __netif_receive_skb+0x37/0xf0 net/core/dev.c:5043
 netif_receive_skb_internal+0x59/0x190 net/core/dev.c:5133
 netif_receive_skb+0x44/0x210 net/core/dev.c:5192
 br_netif_receive_skb+0xa7/0xd0 net/bridge/br_input.c:29
 NF_HOOK include/linux/netfilter.h:305 [inline]
 NF_HOOK include/linux/netfilter.h:299 [inline]
 br_pass_frame_up+0x2db/0x300 net/bridge/br_input.c:64
 br_handle_frame_finish+0x3bc/0xa90 net/bridge/br_input.c:168
 br_nf_hook_thresh+0x1f8/0x210 net/bridge/br_netfilter_hooks.c:1019
 br_nf_pre_routing_finish_ipv6+0x3cb/0x520 net/bridge/br_netfilter_ipv6.c:206
 NF_HOOK include/linux/netfilter.h:305 [inline]
 br_nf_pre_routing_ipv6+0x23a/0x340 net/bridge/br_netfilter_ipv6.c:236
 br_nf_pre_routing+0xaf8/0xd75 net/bridge/br_netfilter_hooks.c:505
 nf_hook_entry_hookfn include/linux/netfilter.h:135 [inline]
 nf_hook_bridge_pre net/bridge/br_input.c:223 [inline]
 br_handle_frame+0x432/0x890 net/bridge/br_input.c:348
 __netif_receive_skb_core+0xb8f/0x1a90 net/core/dev.c:4830
 __netif_receive_skb_one_core+0x67/0xe0 net/core/dev.c:4927
 __netif_receive_skb+0x37/0xf0 net/core/dev.c:5043
 process_backlog+0x207/0x4b0 net/core/dev.c:5874
 napi_poll net/core/dev.c:6311 [inline]
 net_rx_action+0x3ae/0xa90 net/core/dev.c:6379
 __do_softirq+0x115/0x33f kernel/softirq.c:292
 run_ksoftirqd+0x46/0x60 kernel/softirq.c:603
 smpboot_thread_fn+0x37d/0x4a0 kernel/smpboot.c:165
 kthread+0x1d4/0x200 drivers/block/aoe/aoecmd.c:1253
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:352

write to 0xffff8880a6b246af of 1 bytes by task 3973 on cpu 1:
 fib6_ifup+0xd7/0x100 net/ipv6/route.c:4595
 fib6_clean_node+0x194/0x310 net/ipv6/ip6_fib.c:2077
 fib6_walk_continue+0x2e3/0x440 net/ipv6/ip6_fib.c:2002
 fib6_walk+0x10d/0x160 net/ipv6/ip6_fib.c:2050
 fib6_clean_tree+0xef/0x120 net/ipv6/ip6_fib.c:2130
 __fib6_clean_all+0xbd/0x150 net/ipv6/ip6_fib.c:2146
 fib6_clean_all+0x34/0x50 net/ipv6/ip6_fib.c:2157
 rt6_sync_up+0x9f/0x110 net/ipv6/route.c:4615
 addrconf_notify+0x111f/0x1480 net/ipv6/addrconf.c:3567
 notifier_call_chain+0xd7/0x160 kernel/notifier.c:95
 __raw_notifier_call_chain kernel/notifier.c:396 [inline]
 raw_notifier_call_chain+0x37/0x50 kernel/notifier.c:403
 call_netdevice_notifiers_info+0x48/0xc0 net/core/dev.c:1668
 netdev_state_change net/core/dev.c:1271 [inline]
 netdev_state_change+0xb2/0xd0 net/core/dev.c:1264
 linkwatch_do_dev+0xd8/0xf0 net/core/link_watch.c:159
 __linkwatch_run_queue+0x1a9/0x510 net/core/link_watch.c:204
 linkwatch_event+0x54/0x70 net/core/link_watch.c:243
 process_one_work+0x3d4/0x890 kernel/workqueue.c:2269
 worker_thread+0xa0/0x800 kernel/workqueue.c:2415
 kthread+0x1d4/0x200 drivers/block/aoe/aoecmd.c:1253
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:352

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 3973 Comm: kworker/1:2 Not tainted 5.4.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: events linkwatch_event
==================================================================