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

(cherry picked from commit 67444902a0f10419a557d0a2d3b8675c31b075a9)

Co-authored-by: Kumar Aditya <59607654+kumaraditya303@users.noreply.github.com>

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 (file)
index 0000000..44cceb4
--- /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 23733b63f3c7640a5aea811924ac14695d3246e7..196a706ad9fd479b4cda1773db2670ac9e7309c8 100644 (file)
--- a/Python/ceval.c
+++ b/Python/ceval.c
@@ -44,7 +44,7 @@
 #  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.