From: Shamil <ashm.tech@proton.me>
Date: Sat, 18 Oct 2025 09:27:58 +0000 (+0300)
Subject: gh-140272: Fix memory leak in _gdbm.gdbm.clear() (GH-140274)
X-Git-Tag: v3.15.0a2~403
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f937468e7c88c768a28ff4e653da051ffa30d86c;p=thirdparty%2FPython%2Fcpython.git

gh-140272: Fix memory leak in _gdbm.gdbm.clear() (GH-140274)
---

diff --git a/Misc/NEWS.d/next/Core_and_Builtins/2025-10-17-23-58-11.gh-issue-140272.lhY8uS.rst b/Misc/NEWS.d/next/Core_and_Builtins/2025-10-17-23-58-11.gh-issue-140272.lhY8uS.rst
new file mode 100644
index 000000000000..666a45055f5a
--- /dev/null
+++ b/Misc/NEWS.d/next/Core_and_Builtins/2025-10-17-23-58-11.gh-issue-140272.lhY8uS.rst
@@ -0,0 +1 @@
+Fix memory leak in the :meth:`!clear` method of the :mod:`dbm.gnu` database.
diff --git a/Modules/_gdbmmodule.c b/Modules/_gdbmmodule.c
index 87b84976f49d..a6e0662ae743 100644
--- a/Modules/_gdbmmodule.c
+++ b/Modules/_gdbmmodule.c
@@ -673,8 +673,10 @@ _gdbm_gdbm_clear_impl(gdbmobject *self, PyTypeObject *cls)
         }
         if (gdbm_delete(self->di_dbm, key) < 0) {
             PyErr_SetString(state->gdbm_error, "cannot delete item from database");
+            free(key.dptr);
             return NULL;
         }
+        free(key.dptr);
     }
     Py_RETURN_NONE;
 }