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

miss-islington webhook-mailer at python.org
Tue Sep 6 14:28:30 EDT 2022


https://github.com/python/cpython/commit/a389fdb0958746c4c4ee8849a71a276516f33776
commit: a389fdb0958746c4c4ee8849a71a276516f33776
branch: 3.11
author: Miss Islington (bot) <31488909+miss-islington at users.noreply.github.com>
committer: miss-islington <31488909+miss-islington at users.noreply.github.com>
date: 2022-09-06T11:28:18-07:00
summary:

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 at users.noreply.github.com>

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 000000000000..44cceb46c28c
--- /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 23733b63f3c7..196a706ad9fd 100644
--- 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.



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