================================================================== BUG: KCSAN: data-race in tcp_done / tcp_poll write to 0xffff88813df658e2 of 1 bytes by interrupt on cpu 1: tcp_done+0x2ca/0x360 net/ipv4/tcp.c:4626 tcp_reset+0xc6/0x1b0 net/ipv4/tcp_input.c:4337 tcp_rcv_synsent_state_process+0x813/0xf40 net/ipv4/tcp_input.c:6217 tcp_rcv_state_process+0x187/0x1010 net/ipv4/tcp_input.c:6488 tcp_v4_do_rcv+0x434/0x5a0 net/ipv4/tcp_ipv4.c:1684 tcp_v4_rcv+0x17c8/0x1a30 net/ipv4/tcp_ipv4.c:2078 ip_protocol_deliver_rcu+0x23f/0x490 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:444 [inline] NF_HOOK include/linux/netfilter.h:307 [inline] ip_rcv+0x1b1/0x260 net/ipv4/ip_input.c:564 __netif_receive_skb_one_core net/core/dev.c:5485 [inline] __netif_receive_skb+0x8b/0x1b0 net/core/dev.c:5599 process_backlog+0x23f/0x3b0 net/core/dev.c:5927 __napi_poll+0x65/0x390 net/core/dev.c:6511 napi_poll net/core/dev.c:6578 [inline] net_rx_action+0x37e/0x730 net/core/dev.c:6689 __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 __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline] _raw_spin_unlock_irqrestore+0x37/0x60 kernel/locking/spinlock.c:194 spin_unlock_irqrestore include/linux/spinlock.h:404 [inline] virtscsi_add_cmd+0x323/0x390 drivers/scsi/virtio_scsi.c:497 virtscsi_queuecommand+0x216/0x2b0 drivers/scsi/virtio_scsi.c:590 scsi_dispatch_cmd+0x1b4/0x390 drivers/scsi/scsi_lib.c:1516 scsi_queue_rq+0x13e0/0x1570 drivers/scsi/scsi_lib.c:1752 blk_mq_dispatch_rq_list+0x977/0x1250 block/blk-mq.c:1902 __blk_mq_sched_dispatch_requests+0x1b7/0x270 block/blk-mq-sched.c:306 blk_mq_sched_dispatch_requests+0x8f/0xf0 block/blk-mq-sched.c:339 __blk_mq_run_hw_queue+0x7e/0x100 block/blk-mq.c:2020 __blk_mq_delay_run_hw_queue+0x15b/0x370 block/blk-mq.c:2096 blk_mq_run_hw_queue+0x180/0x320 block/blk-mq.c:2144 blk_mq_run_hw_queues+0x180/0x200 block/blk-mq.c:2192 blk_mq_requeue_work+0x3cd/0x400 block/blk-mq.c:1361 process_one_work+0x3d3/0x720 kernel/workqueue.c:2289 worker_thread+0x618/0xa70 kernel/workqueue.c:2436 kthread+0x1a9/0x1e0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 read to 0xffff88813df658e2 of 1 bytes by task 26746 on cpu 0: tcp_poll+0xf7/0x560 net/ipv4/tcp.c:541 sock_poll+0x23e/0x260 net/socket.c:1353 vfs_poll include/linux/poll.h:88 [inline] io_poll_check_events+0x183/0x360 io_uring/poll.c:233 io_apoll_task_func+0x1a/0xa0 io_uring/poll.c:295 handle_tw_list+0x12a/0x180 io_uring/io_uring.c:984 tctx_task_work+0x72/0x360 io_uring/io_uring.c:1031 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: 0x00 -> 0x03 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 26746 Comm: syz-executor.0 Not tainted 6.0.0-rc6-syzkaller-00045-gdc164f4fb00a-dirty #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2022 ==================================================================