Issue #9422: Fix memory leak when re-initializing a struct.Struct object.
diff --git a/Misc/NEWS b/Misc/NEWS
index a4d301f..9eaed9a 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -1492,6 +1492,8 @@
Extension Modules
-----------------
+- Issue #9422: Fix memory leak when re-initializing a struct.Struct object.
+
- Issue #7900: The getgroups(2) system call on MacOSX behaves rather oddly
compared to other unix systems. In particular, os.getgroups() does
not reflect any changes made using os.setgroups() but basicly always
diff --git a/Modules/_struct.c b/Modules/_struct.c
index d55ce0f..f85d562 100644
--- a/Modules/_struct.c
+++ b/Modules/_struct.c
@@ -1247,6 +1247,9 @@
PyErr_NoMemory();
return -1;
}
+ /* Free any s_codes value left over from a previous initialization. */
+ if (self->s_codes != NULL)
+ PyMem_FREE(self->s_codes);
self->s_codes = codes;
s = fmt;