================================================================== BUG: KCSAN: data-race in tcp_disconnect / tcp_poll write to 0xffff8881381946aa of 1 bytes by task 5992 on cpu 1: tcp_disconnect+0x5ee/0xef0 net/ipv4/tcp.c:3008 __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+0x3f61/0x98d0 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 0xffff8881381946aa of 1 bytes by task 5967 on cpu 0: tcp_poll+0x242/0x580 net/ipv4/tcp.c:558 sock_poll+0x23e/0x260 net/socket.c:1306 vfs_poll include/linux/poll.h:88 [inline] io_poll_check_events+0x1ff/0x530 fs/io_uring.c:5532 io_apoll_task_func+0x33/0x800 fs/io_uring.c:5591 handle_tw_list fs/io_uring.c:2328 [inline] tctx_task_work+0x8b2/0xc90 fs/io_uring.c:2362 task_work_run+0x8e/0x110 kernel/task_work.c:164 tracehook_notify_signal include/linux/tracehook.h:213 [inline] io_run_task_work fs/io_uring.c:2595 [inline] __do_sys_io_uring_enter fs/io_uring.c:10105 [inline] __se_sys_io_uring_enter+0xc8/0xb00 fs/io_uring.c:10096 __x64_sys_io_uring_enter+0x74/0x80 fs/io_uring.c:10096 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: 5967 Comm: syz-executor.2 Not tainted 5.17.0-rc2-syzkaller-dirty #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================