[Python-checkins] GH-96572: fix use after free in trace refs build mode (#96618)

[gvanrossum]

https://github.com/python/cpython/commit/67444902a0f10419a557d0a2d3b8675c31b075a9
commit: 67444902a0f10419a557d0a2d3b8675c31b075a9
branch: main
author: Kumar Aditya <59607654+kumaraditya303 at users.noreply.github.com>
committer: gvanrossum <gvanrossum at gmail.com>
date: 2022-09-06T11:02:41-07:00
summary:

GH-96572: fix use after free in trace refs build mode (#96618)

files:
A Misc/NEWS.d/next/Core and Builtins/2022-09-06-16-54-49.gh-issue-96572.8DRsaW.rst
M Python/ceval.c

diff --git a/Misc/NEWS.d/next/Core and Builtins/2022-09-06-16-54-49.gh-issue-96572.8DRsaW.rst b/Misc/NEWS.d/next/Core and Builtins/2022-09-06-16-54-49.gh-issue-96572.8DRsaW.rst
new file mode 100644
index 00000000000..44cceb46c28
--- /dev/null
+++ b/Misc/NEWS.d/next/Core and Builtins/2022-09-06-16-54-49.gh-issue-96572.8DRsaW.rst	
@@ -0,0 +1 @@
+Fix use after free in trace refs build mode. Patch by Kumar Aditya.
diff --git a/Python/ceval.c b/Python/ceval.c
index c2fa9085359..971f6f177c9 100644
--- a/Python/ceval.c
+++ b/Python/ceval.c
@@ -46,7 +46,7 @@
 #  error "ceval.c must be build with Py_BUILD_CORE define for best performance"
 #endif
 
-#ifndef Py_DEBUG
+#if !defined(Py_DEBUG) && !defined(Py_TRACE_REFS)
 // GH-89279: The MSVC compiler does not inline these static inline functions
 // in PGO build in _PyEval_EvalFrameDefault(), because this function is over
 // the limit of PGO, and that limit cannot be configured.