bpo-32710: Fix leak in Overlapped_WSASend() (GH-11469)
Fix a memory leak in asyncio in the ProactorEventLoop when ReadFile()
or WSASend() overlapped operation fail immediately: release the
internal buffer.
diff --git a/Modules/overlapped.c b/Modules/overlapped.c
index 69875a7..bbaa4fb 100644
--- a/Modules/overlapped.c
+++ b/Modules/overlapped.c
@@ -723,6 +723,7 @@
case ERROR_IO_PENDING:
Py_RETURN_NONE;
default:
+ PyBuffer_Release(&self->user_buffer);
self->type = TYPE_NOT_STARTED;
return SetFromWindowsErr(err);
}
@@ -1011,6 +1012,7 @@
case ERROR_IO_PENDING:
Py_RETURN_NONE;
default:
+ PyBuffer_Release(&self->user_buffer);
self->type = TYPE_NOT_STARTED;
return SetFromWindowsErr(err);
}