[3.12] gh-129346: Handle allocation errors for SQLite aggregate context (GH-129347) (#129373)

miss-islington · erlend-aasland · web-flow · commit 23faf5f2dca0 · 2025-01-27T17:33:18.000Z
(cherry picked from commit 379ab85) Co-authored-by: Erlend E. Aasland <erlend@python.org>
diff --git a/Misc/NEWS.d/next/Library/2025-01-27-14-05-19.gh-issue-129346.gZRd3g.rst b/Misc/NEWS.d/next/Library/2025-01-27-14-05-19.gh-issue-129346.gZRd3g.rst
@@ -0,0 +1,2 @@
+In :mod:`sqlite3`, handle out-of-memory when creating user-defined SQL
+functions.
diff --git a/Modules/_sqlite/connection.c b/Modules/_sqlite/connection.c
@@ -927,6 +927,11 @@ step_callback(sqlite3_context *context, int argc, sqlite3_value **params)
     assert(ctx != NULL);
 
     aggregate_instance = (PyObject**)sqlite3_aggregate_context(context, sizeof(PyObject*));
+    if (aggregate_instance == NULL) {
+        (void)PyErr_NoMemory();
+        set_sqlite_error(context, "unable to allocate SQLite aggregate context");
+        goto error;
+    }
     if (*aggregate_instance == NULL) {
         *aggregate_instance = PyObject_CallNoArgs(ctx->callable);
         if (!*aggregate_instance) {

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,2 @@`
	`1`	+In :mod:`sqlite3`, handle out-of-memory when creating user-defined SQL
	`2`	`+functions.`