================================================================== BUG: KCSAN: data-race in tcp_disconnect / tcp_poll write to 0xffff888134758d2a of 1 bytes by task 10962 on cpu 1: tcp_disconnect+0x5ee/0xef0 net/ipv4/tcp.c:3018 __inet_stream_connect+0x621/0x6e0 net/ipv4/af_inet.c:712 inet_stream_connect+0x44/0x70 net/ipv4/af_inet.c:724 __sys_connect_file+0xd3/0xe0 net/socket.c:1900 io_connect fs/io_uring.c:5353 [inline] io_issue_sqe+0x41a9/0x9610 fs/io_uring.c:6792 io_wq_submit_work+0x1c5/0x370 fs/io_uring.c:6916 io_worker_handle_work+0x51b/0xc10 fs/io-wq.c:588 io_wqe_worker+0x1bc/0x4f0 fs/io-wq.c:639 ret_from_fork+0x1f/0x30 read to 0xffff888134758d2a of 1 bytes by task 10955 on cpu 0: tcp_poll+0xfa/0x580 net/ipv4/tcp.c:539 sock_poll+0x23e/0x260 net/socket.c:1306 vfs_poll include/linux/poll.h:88 [inline] __io_arm_poll_handler+0x19c/0x8d0 fs/io_uring.c:5755 io_arm_poll_handler+0x1fb/0x360 fs/io_uring.c:5839 io_queue_sqe_arm_apoll fs/io_uring.c:7075 [inline] __io_queue_sqe+0x1a3/0x6a0 fs/io_uring.c:7113 io_queue_sqe+0x46/0x550 fs/io_uring.c:7140 io_submit_sqe+0x796/0x4b34 fs/io_uring.c:7348 io_submit_sqes+0x25f/0x560 fs/io_uring.c:7454 __do_sys_io_uring_enter fs/io_uring.c:10162 [inline] __se_sys_io_uring_enter+0x212/0xb00 fs/io_uring.c:10104 __x64_sys_io_uring_enter+0x74/0x80 fs/io_uring.c:10104 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae value changed: 0x03 -> 0x00 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 10955 Comm: syz-executor.1 Not tainted 5.17.0-rc7-syzkaller-00020-gea4424be1688-dirty #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================