From 836aaad6da0ed75926dc4339863b6665d27413d3 Mon Sep 17 00:00:00 2001
From: chgnrdv <52372310+chgnrdv@users.noreply.github.com>
Date: Wed, 22 Jun 2022 13:10:22 +0300
Subject: [PATCH] gh-94101 Disallow instantiation of SSLSession objects
 (GH-94102)

Fixes GH-94101

Automerge-Triggered-By: GH:tiran
(cherry picked from commit dc8e1d0390e16e90b2f74f6bd6417324a357bc23)

Co-authored-by: chgnrdv <52372310+chgnrdv@users.noreply.github.com>
---
 .../next/Library/2022-06-22-11-16-11.gh-issue-94101.V9vDG8.rst | 3 +++
 Modules/_ssl.c                                                 | 3 ++-
 2 files changed, 5 insertions(+), 1 deletion(-)
 create mode 100644 Misc/NEWS.d/next/Library/2022-06-22-11-16-11.gh-issue-94101.V9vDG8.rst

diff --git a/Misc/NEWS.d/next/Library/2022-06-22-11-16-11.gh-issue-94101.V9vDG8.rst b/Misc/NEWS.d/next/Library/2022-06-22-11-16-11.gh-issue-94101.V9vDG8.rst
new file mode 100644
index 00000000000000..bcef0ca07470a6
--- /dev/null
+++ b/Misc/NEWS.d/next/Library/2022-06-22-11-16-11.gh-issue-94101.V9vDG8.rst
@@ -0,0 +1,3 @@
+Manual instantiation of :class:`ssl.SSLSession` objects is no longer allowed
+as it lead to misconfigured instances that crashed the interpreter when
+attributes where accessed on them.
diff --git a/Modules/_ssl.c b/Modules/_ssl.c
index e67ab42050b26c..08596577086ac4 100644
--- a/Modules/_ssl.c
+++ b/Modules/_ssl.c
@@ -5067,7 +5067,8 @@ static PyType_Spec PySSLSession_spec = {
     .name = "_ssl.SSLSession",
     .basicsize = sizeof(PySSLSession),
     .flags = (Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC |
-              Py_TPFLAGS_IMMUTABLETYPE),
+              Py_TPFLAGS_IMMUTABLETYPE |
+              Py_TPFLAGS_DISALLOW_INSTANTIATION),
     .slots = PySSLSession_slots,
 };