From 7c770d3350813a82a639fcb3babae0de2b87aaae Mon Sep 17 00:00:00 2001 From: Victor Stinner Date: Fri, 14 Jan 2022 05:11:38 +0100 Subject: [PATCH] bpo-46280: Fix tracemalloc_copy_domain() (GH-30591) Test if tracemalloc_copy_traces() failed to allocated memory in tracemalloc_copy_domain(). --- Modules/_tracemalloc.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/Modules/_tracemalloc.c b/Modules/_tracemalloc.c index b838439a9cb..14bad00e4c6 100644 --- 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;