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BUG: KCSAN: data-race in dccp_poll / dccp_rcv_reset

write to 0xffff888155b18420 of 4 bytes by interrupt on cpu 0:
 dccp_rcv_reset+0x9a/0x190 net/dccp/input.c:149
 dccp_rcv_state_process+0x2fb/0x4d0 net/dccp/input.c:662
 dccp_v4_do_rcv+0x8f/0xe0 net/dccp/ipv4.c:695
 sk_backlog_rcv include/net/sock.h:1047 [inline]
 __sk_receive_skb+0x22e/0x590 net/core/sock.c:565
 dccp_v4_rcv+0xc55/0xe90 net/dccp/ipv4.c:889
 ip_protocol_deliver_rcu+0x23b/0x480 net/ipv4/ip_input.c:205
 ip_local_deliver_finish+0x126/0x160 net/ipv4/ip_input.c:233
 NF_HOOK include/linux/netfilter.h:307 [inline]
 ip_local_deliver+0x100/0x1b0 net/ipv4/ip_input.c:254
 dst_input include/net/dst.h:461 [inline]
 ip_rcv_finish net/ipv4/ip_input.c:437 [inline]
 NF_HOOK include/linux/netfilter.h:307 [inline]
 ip_rcv+0x1b1/0x260 net/ipv4/ip_input.c:557
 __netif_receive_skb_one_core net/core/dev.c:5480 [inline]
 __netif_receive_skb+0x8b/0x1b0 net/core/dev.c:5594
 process_backlog+0x23f/0x3b0 net/core/dev.c:5922
 __napi_poll+0x65/0x390 net/core/dev.c:6488
 napi_poll net/core/dev.c:6555 [inline]
 net_rx_action+0x37e/0x730 net/core/dev.c:6666
 __do_softirq+0x158/0x2e3 kernel/softirq.c:571
 __irq_exit_rcu kernel/softirq.c:650 [inline]
 irq_exit_rcu+0x41/0x70 kernel/softirq.c:662
 sysvec_apic_timer_interrupt+0x8d/0xb0 arch/x86/kernel/apic/apic.c:1106
 asm_sysvec_apic_timer_interrupt+0x16/0x20
 finish_task_switch+0xcf/0x260 kernel/sched/core.c:5026
 context_switch kernel/sched/core.c:5149 [inline]
 __schedule+0x50d/0x6c0 kernel/sched/core.c:6458
 schedule+0x71/0xa0 kernel/sched/core.c:6530
 freezable_schedule include/linux/freezer.h:172 [inline]
 do_nanosleep+0xc4/0x390 kernel/time/hrtimer.c:2044
 hrtimer_nanosleep+0x10b/0x200 kernel/time/hrtimer.c:2097
 common_nsleep+0x64/0x80 kernel/time/posix-timers.c:1236
 __do_sys_clock_nanosleep kernel/time/posix-timers.c:1276 [inline]
 __se_sys_clock_nanosleep kernel/time/posix-timers.c:1254 [inline]
 __x64_sys_clock_nanosleep+0x20c/0x240 kernel/time/posix-timers.c:1254
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

read to 0xffff888155b18420 of 4 bytes by task 31511 on cpu 1:
 dccp_poll+0xbb/0x3c0 net/dccp/proto.c:323
 sock_poll+0x23e/0x260 net/socket.c:1353
 vfs_poll include/linux/poll.h:88 [inline]
 io_poll_check_events+0x1ee/0x4f0 fs/io_uring.c:6870
 io_apoll_task_func+0x36/0x2f0 fs/io_uring.c:6943
 handle_tw_list fs/io_uring.c:2930 [inline]
 tctx_task_work+0x8d0/0xc10 fs/io_uring.c:2959
 task_work_run+0x8e/0x110 kernel/task_work.c:177
 get_signal+0xeca/0x1020 kernel/signal.c:2634
 arch_do_signal_or_restart+0x87/0x2d0 arch/x86/kernel/signal.c:869
 exit_to_user_mode_loop+0x78/0x130 kernel/entry/common.c:166
 exit_to_user_mode_prepare kernel/entry/common.c:201 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:283 [inline]
 syscall_exit_to_user_mode+0x6a/0x90 kernel/entry/common.c:294
 do_syscall_64+0x37/0x70 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

value changed: 0x00000000 -> 0x0000006f

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 31511 Comm: syz-executor.3 Not tainted 5.19.0-rc6-syzkaller-00111-gb047602d579b-dirty #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022
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