Fix memory leak in libvirt_virStreamRecv.

The libvirt_virStreamRecv function uses a temporary allocated buffer to
receive data before copying the data into a Python byte array. But
there are some error paths where this buffer is not freed. This change
fixes that memory leak.

Signed-off-by: Chris Gunn <chrisgun@microsoft.com>

1 files changed, 6 insertions, 2 deletions

diff --git a/libvirt-override.c b/libvirt-override.c
index 2a2a7dd..b28f155 100644
--- a/libvirt-override.c
+++ b/libvirt-override.c
@@ -7926,10 +7926,14 @@ libvirt_virStreamRecv(PyObject *self ATTRIBUTE_UNUSED,
     buf[ret > -1 ? ret : 0] = '\0';
     DEBUG("StreamRecv ret=%d strlen=%d\n", ret, (int) strlen(buf));
 
-    if (ret == -2)
+    if (ret == -2) {
+        VIR_FREE(buf);
         return libvirt_intWrap(ret);
-    if (ret < 0)
+    }
+    if (ret < 0) {
+        VIR_FREE(buf);
         return VIR_PY_NONE;
+    }
     rv = libvirt_charPtrSizeWrap((char *) buf, (Py_ssize_t) ret);
     VIR_FREE(buf);
     return rv;