commit 8ca72e2e3dfd0643288c27c4462cb8be62b5b049
author Victor Stinner <victor.stinner@gmail.com> Fri Jul 12 00:53:26 2013 +0200
committer Victor Stinner <victor.stinner@gmail.com> Fri Jul 12 00:53:26 2013 +0200
tree 96cd627f1291a6d902e918ba95abdfae7f4097df
parent a41f08514463ffe1f985e1ef5b3e9123e7222dc5

Issue #18408: _PyMemoTable_ResizeTable() now restores the old table if
allocating a bigger table failed

PyMemoTable destructor does crash if mt_table is NULL.

Modules/_pickle.c

diff --git a/Modules/_pickle.c b/Modules/_pickle.c
index 8b3438e..888a498 100644
--- a/Modules/_pickle.c
+++ b/Modules/_pickle.c
@@ -529,7 +529,7 @@
     oldtable = self->mt_table;
     self->mt_table = PyMem_MALLOC(new_size * sizeof(PyMemoEntry));
     if (self->mt_table == NULL) {
-        PyMem_FREE(oldtable);
+        self->mt_table = oldtable;
         PyErr_NoMemory();
         return -1;
     }