bpo-46280: Fix tracemalloc_copy_domain() (pythonGH-30591)

Test if tracemalloc_copy_traces() failed to allocated memory in tracemalloc_copy_domain().
liucz25 · Jan 14, 2022 · 7c770d3 · 7c770d3
1 parent 322f962
commit 7c770d3
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/Modules/_tracemalloc.c b/Modules/_tracemalloc.c
@@ -1242,6 +1242,9 @@ tracemalloc_copy_domain(_Py_hashtable_t *domains,
     _Py_hashtable_t *traces = (_Py_hashtable_t *)value;
 
     _Py_hashtable_t *traces2 = tracemalloc_copy_traces(traces);
+    if (traces2 == NULL) {
+        return -1;
+    }
     if (_Py_hashtable_set(domains2, TO_PTR(domain), traces2) < 0) {
         _Py_hashtable_destroy(traces2);
         return -1;