Issue #8184: Fix a potential file descriptor leak when a

multiprocessing.Connection socket can't be bound.

1 files changed, 8 insertions, 4 deletions

diff --git a/Lib/multiprocessing/connection.py b/Lib/multiprocessing/connection.py
index d6c23fb..df00f1d 100644
--- a/Lib/multiprocessing/connection.py
+++ b/Lib/multiprocessing/connection.py
@@ -249,10 +249,14 @@ class SocketListener(object):
     '''
     def __init__(self, address, family, backlog=1):
         self._socket = socket.socket(getattr(socket, family))
-        self._socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
-        self._socket.bind(address)
-        self._socket.listen(backlog)
-        self._address = self._socket.getsockname()
+        try:
+            self._socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
+            self._socket.bind(address)
+            self._socket.listen(backlog)
+            self._address = self._socket.getsockname()
+        except socket.error:
+            self._socket.close()
+            raise
         self._family = family
         self._last_accepted = None