From: Miss Skeleton (bot) <31488909+miss-islington@users.noreply.github.com>
Date: Tue, 13 Oct 2020 07:09:08 +0000 (-0700)
Subject: bpo-41995: Fix null ptr deref in tracemalloc_copy_trace() (GH-22660)
X-Git-Tag: v3.9.1rc1~173
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=afe86066e748076f970ccd277fc64fc51bea189b;p=thirdparty%2FPython%2Fcpython.git

bpo-41995: Fix null ptr deref in tracemalloc_copy_trace() (GH-22660)


Fix a null pointer dereference in tracemalloc_copy_trace()
of _tracemalloc.
(cherry picked from commit 66c28f50c76e4f23af7146e0e580457c5fd6bde7)

Co-authored-by: Yunlongs <lylgood@foxmail.com>
---

diff --git a/Modules/_tracemalloc.c b/Modules/_tracemalloc.c
index fc91622d3925..04f6c243b5ca 100644
--- a/Modules/_tracemalloc.c
+++ b/Modules/_tracemalloc.c
@@ -1199,7 +1199,7 @@ tracemalloc_copy_trace(_Py_hashtable_t *traces,
     trace_t *trace = (trace_t *)value;
 
     trace_t *trace2 = raw_malloc(sizeof(trace_t));
-    if (traces2 == NULL) {
+    if (trace2 == NULL) {
         return -1;
     }
     *trace2 = *trace;