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-rw-r--r--Misc/NEWS3
-rw-r--r--Objects/dictobject.c16
2 files changed, 15 insertions, 4 deletions
diff --git a/Misc/NEWS b/Misc/NEWS
index c078623..115ff69 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -10,6 +10,9 @@ What's New in Python 3.2.3?
Core and Builtins
-----------------
+- Issue #13018: Fix reference leaks in error paths in dictobject.c.
+ Patch by Suman Saha.
+
- Issue #1294232: In a few cases involving metaclass inheritance, the
interpreter would sometimes invoke the wrong metaclass when building a new
class object. These cases now behave correctly. Patch by Daniel Urban.
diff --git a/Objects/dictobject.c b/Objects/dictobject.c
index 3fa5cc4..79894e5 100644
--- a/Objects/dictobject.c
+++ b/Objects/dictobject.c
@@ -1314,14 +1314,18 @@ dict_fromkeys(PyObject *cls, PyObject *args)
PyObject *key;
Py_hash_t hash;
- if (dictresize(mp, Py_SIZE(seq)))
+ if (dictresize(mp, Py_SIZE(seq))) {
+ Py_DECREF(d);
return NULL;
+ }
while (_PyDict_Next(seq, &pos, &key, &oldvalue, &hash)) {
Py_INCREF(key);
Py_INCREF(value);
- if (insertdict(mp, key, hash, value))
+ if (insertdict(mp, key, hash, value)) {
+ Py_DECREF(d);
return NULL;
+ }
}
return d;
}
@@ -1332,14 +1336,18 @@ dict_fromkeys(PyObject *cls, PyObject *args)
PyObject *key;
Py_hash_t hash;
- if (dictresize(mp, PySet_GET_SIZE(seq)))
+ if (dictresize(mp, PySet_GET_SIZE(seq))) {
+ Py_DECREF(d);
return NULL;
+ }
while (_PySet_NextEntry(seq, &pos, &key, &hash)) {
Py_INCREF(key);
Py_INCREF(value);
- if (insertdict(mp, key, hash, value))
+ if (insertdict(mp, key, hash, value)) {
+ Py_DECREF(d);
return NULL;
+ }
}
return d;
}