syzbot

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BUG: KCSAN: data-race in tcp_done / tcp_poll

write to 0xffff88813e9226a2 of 1 bytes by interrupt on cpu 0:
 tcp_done+0x2ca/0x360 net/ipv4/tcp.c:4502
 tcp_reset+0xc6/0x1b0 net/ipv4/tcp_input.c:4318
 tcp_rcv_synsent_state_process+0x817/0xf50 net/ipv4/tcp_input.c:6200
 tcp_rcv_state_process+0x187/0x1010 net/ipv4/tcp_input.c:6471
 tcp_v4_do_rcv+0x434/0x5a0 net/ipv4/tcp_ipv4.c:1682
 tcp_v4_rcv+0x1710/0x19d0 net/ipv4/tcp_ipv4.c:2072
 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:5478 [inline]
 __netif_receive_skb+0x8b/0x1b0 net/core/dev.c:5592
 process_backlog+0x23f/0x3b0 net/core/dev.c:5920
 __napi_poll+0x65/0x390 net/core/dev.c:6486
 napi_poll net/core/dev.c:6553 [inline]
 net_rx_action+0x37e/0x730 net/core/dev.c:6664
 __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+0x1b/0x20
 native_safe_halt arch/x86/include/asm/irqflags.h:51 [inline]
 arch_safe_halt arch/x86/include/asm/irqflags.h:89 [inline]
 acpi_safe_halt drivers/acpi/processor_idle.c:111 [inline]
 acpi_idle_do_entry drivers/acpi/processor_idle.c:554 [inline]
 acpi_idle_enter+0x283/0x310 drivers/acpi/processor_idle.c:691
 cpuidle_enter_state+0x2ee/0x7a0 drivers/cpuidle/cpuidle.c:237
 cpuidle_enter+0x3c/0x60 drivers/cpuidle/cpuidle.c:351
 call_cpuidle kernel/sched/idle.c:155 [inline]
 cpuidle_idle_call kernel/sched/idle.c:236 [inline]
 do_idle+0x1b2/0x250 kernel/sched/idle.c:303
 cpu_startup_entry+0x15/0x20 kernel/sched/idle.c:400
 rest_init+0xe8/0xf0 init/main.c:726
 start_kernel+0x0/0x656 init/main.c:882
 start_kernel+0x5d1/0x656 init/main.c:1137
 secondary_startup_64_no_verify+0xcf/0xdb

read to 0xffff88813e9226a2 of 1 bytes by task 14452 on cpu 1:
 tcp_poll+0xf7/0x560 net/ipv4/tcp.c:539
 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:6952
 io_apoll_task_func+0x36/0x2f0 fs/io_uring.c:7025
 handle_tw_list fs/io_uring.c:2984 [inline]
 tctx_task_work+0x8c0/0xc00 fs/io_uring.c:3013
 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+0x46/0xb0

value changed: 0x00 -> 0x03

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 14452 Comm: syz-executor.5 Not tainted 5.19.0-rc2-syzkaller-00049-g24625f7d91fb-dirty #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
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