From d3afd465f3d08e56a2b00617921ab7159bde7d97 Mon Sep 17 00:00:00 2001
From: "Jeong, YunWon" <69878+youknowone@users.noreply.github.com>
Date: Wed, 31 Dec 2025 17:52:24 +0900
Subject: [PATCH] fix concurrent socket close (#6612)

---
 crates/stdlib/src/socket.rs | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/crates/stdlib/src/socket.rs b/crates/stdlib/src/socket.rs
index a37a4fd24..ea5f39cb4 100644
--- a/crates/stdlib/src/socket.rs
+++ b/crates/stdlib/src/socket.rs
@@ -2107,9 +2107,9 @@ mod _socket {
 
         #[pymethod]
         fn close(&self) -> io::Result<()> {
-            let sock = self.detach();
-            if sock != INVALID_SOCKET as i64 {
-                close_inner(sock as RawSocket)?;
+            let sock = self.sock.write().take();
+            if let Some(sock) = sock {
+                close_inner(into_sock_fileno(sock))?;
             }
             Ok(())
         }