From: Miss Islington (bot) <31488909+miss-islington@users.noreply.github.com>
Date: Wed, 27 Jul 2022 12:37:43 +0000 (-0700)
Subject: GH-95045: gc untrack _lsprof.Profiler before deallocating it (GH-95315)
X-Git-Tag: v3.11.0rc1~83
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=6b01fc7045dfeb27d146983e62759ce81ddf9e30;p=thirdparty%2FPython%2Fcpython.git

GH-95045: gc untrack _lsprof.Profiler before deallocating it (GH-95315)


Automerge-Triggered-By: GH:pablogsal
(cherry picked from commit deacf391d7a1b3ab49bffa16088b3500fdb4c435)

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

diff --git a/Misc/NEWS.d/next/Library/2022-07-27-11-35-45.gh-issue-95045.iysT-Q.rst b/Misc/NEWS.d/next/Library/2022-07-27-11-35-45.gh-issue-95045.iysT-Q.rst
new file mode 100644
index 000000000000..d4ab325e0365
--- /dev/null
+++ b/Misc/NEWS.d/next/Library/2022-07-27-11-35-45.gh-issue-95045.iysT-Q.rst
@@ -0,0 +1 @@
+Fix GC crash when deallocating ``_lsprof.Profiler`` by untracking it before calling any callbacks. Patch by Kumar Aditya.
diff --git a/Modules/_lsprof.c b/Modules/_lsprof.c
index 0e8432fda01e..a0e262bdac26 100644
--- a/Modules/_lsprof.c
+++ b/Modules/_lsprof.c
@@ -747,6 +747,7 @@ profiler_traverse(ProfilerObject *op, visitproc visit, void *arg)
 static void
 profiler_dealloc(ProfilerObject *op)
 {
+    PyObject_GC_UnTrack(op);
     if (op->flags & POF_ENABLED) {
         PyThreadState *tstate = _PyThreadState_GET();
         if (_PyEval_SetProfile(tstate, NULL, NULL) < 0) {