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BUG: KCSAN: data-race in sk_wait_data / tcp_queue_rcv

write to 0xffff8880b95e8458 of 8 bytes by interrupt on cpu 1:
 __skb_insert include/linux/skbuff.h:1852 [inline]
 __skb_queue_before include/linux/skbuff.h:1958 [inline]
 __skb_queue_tail include/linux/skbuff.h:1991 [inline]
 tcp_queue_rcv+0x1bd/0x380 net/ipv4/tcp_input.c:4684
 tcp_data_queue+0x7bb/0x20b0 net/ipv4/tcp_input.c:4789
 tcp_rcv_state_process+0x79b/0x2604 net/ipv4/tcp_input.c:6340
 tcp_v6_do_rcv+0x4cb/0x9b0 net/ipv6/tcp_ipv6.c:1402
 tcp_v6_rcv+0x1930/0x1aa0 net/ipv6/tcp_ipv6.c:1609
 ip6_protocol_deliver_rcu+0x22a/0xbe0 net/ipv6/ip6_input.c:409
 ip6_input_finish+0x30/0x50 net/ipv6/ip6_input.c:450
 NF_HOOK include/linux/netfilter.h:305 [inline]
 NF_HOOK include/linux/netfilter.h:299 [inline]
 ip6_input+0x177/0x190 net/ipv6/ip6_input.c:459
 dst_input include/net/dst.h:442 [inline]
 ip6_rcv_finish+0x110/0x140 net/ipv6/ip6_input.c:76
 NF_HOOK include/linux/netfilter.h:305 [inline]
 NF_HOOK include/linux/netfilter.h:299 [inline]
 ipv6_rcv+0x1a1/0x1b0 net/ipv6/ip6_input.c:284
 __netif_receive_skb_one_core+0xa7/0xe0 net/core/dev.c:5010
 __netif_receive_skb+0x37/0xf0 net/core/dev.c:5124
 process_backlog+0x1d3/0x420 net/core/dev.c:5955
 napi_poll net/core/dev.c:6392 [inline]
 net_rx_action+0x3ae/0xa90 net/core/dev.c:6460

read to 0xffff8880b95e8458 of 8 bytes by task 13965 on cpu 0:
 skb_peek_tail include/linux/skbuff.h:1784 [inline]
 sk_wait_data+0x11a/0x250 net/core/sock.c:2477
 tcp_recvmsg+0x5ae/0x1a30 net/ipv4/tcp.c:2096
 inet6_recvmsg+0xbb/0x240 net/ipv6/af_inet6.c:592
 sock_recvmsg_nosec net/socket.c:871 [inline]
 sock_recvmsg net/socket.c:889 [inline]
 sock_recvmsg+0x92/0xb0 net/socket.c:885
 __sys_recvfrom+0x1ae/0x2d0 net/socket.c:2009
 __do_sys_recvfrom net/socket.c:2027 [inline]
 __se_sys_recvfrom net/socket.c:2023 [inline]
 __x64_sys_recvfrom+0x89/0xb0 net/socket.c:2023
 do_syscall_64+0xcc/0x370 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x44/0xa9

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 PID: 13965 Comm: syz-executor.4 Not tainted 5.4.0-rc3+ #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
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