- Add CVE-2024-12254-unbound-mem-buffering-SelectorSocketTransport.writelines.patch

preventing exhaustion of memory (gh#python/cpython#127655,
  bsc#1234290, CVE-2024-12254).

OBS-URL: https://build.opensuse.org/package/show/devel:languages:python:Factory/python312?expand=0&rev=88

CVE-2024-12254-unbound-mem-buffering-SelectorSocketTransport.writelines.patch

@@ -0,0 +1,46 @@
+From bfc2e93d755bf496e5ef4cae9609d2823122c909 Mon Sep 17 00:00:00 2001
+From: "J. Nick Koston" <nick@koston.org>
+Date: Thu, 5 Dec 2024 10:01:10 -0600
+Subject: [PATCH 01/10] Ensure writelines pauses the protocol if needed
+
+---
+ Lib/asyncio/selector_events.py                                           |    1 
+ Lib/test/test_asyncio/test_selector_events.py                            |   12 ++++++++++
+ Misc/NEWS.d/next/Security/2024-12-05-21-35-19.gh-issue-127655.xpPoOf.rst |    1 
+ 3 files changed, 14 insertions(+)
+
+--- a/Lib/asyncio/selector_events.py
++++ b/Lib/asyncio/selector_events.py
+@@ -1183,6 +1183,7 @@ class _SelectorSocketTransport(_Selector
+         # If the entire buffer couldn't be written, register a write handler
+         if self._buffer:
+             self._loop._add_writer(self._sock_fd, self._write_ready)
++            self._maybe_pause_protocol()
+ 
+     def can_write_eof(self):
+         return True
+--- a/Lib/test/test_asyncio/test_selector_events.py
++++ b/Lib/test/test_asyncio/test_selector_events.py
+@@ -805,6 +805,18 @@ class SelectorSocketTransportTests(test_
+         self.assertTrue(self.sock.send.called)
+         self.assertTrue(self.loop.writers)
+ 
++    def test_writelines_pauses_protocol(self):
++        data = memoryview(b'data')
++        self.sock.send.return_value = 2
++        self.sock.send.fileno.return_value = 7
++
++        transport = self.socket_transport()
++        transport._high_water = 1
++        transport.writelines([data])
++        self.assertTrue(self.protocol.pause_writing.called)
++        self.assertTrue(self.sock.send.called)
++        self.assertTrue(self.loop.writers)
++
+     @unittest.skipUnless(selector_events._HAS_SENDMSG, 'no sendmsg')
+     def test_write_sendmsg_full(self):
+         data = memoryview(b'data')
+--- /dev/null
++++ b/Misc/NEWS.d/next/Security/2024-12-05-21-35-19.gh-issue-127655.xpPoOf.rst
+@@ -0,0 +1 @@
++Fixed the :class:`!asyncio.selector_events._SelectorSocketTransport` transport not pausing writes for the protocol when the buffer reaches the high water mark when using :meth:`asyncio.WriteTransport.writelines`.

python312.changes

@@ -1,3 +1,10 @@
+-------------------------------------------------------------------
+Fri Dec  6 20:39:56 UTC 2024 - Matej Cepl <mcepl@cepl.eu>
+
+- Add CVE-2024-12254-unbound-mem-buffering-SelectorSocketTransport.writelines.patch
+  preventing exhaustion of memory (gh#python/cpython#127655,
+  bsc#1234290, CVE-2024-12254).
+
 -------------------------------------------------------------------
 Wed Dec  4 21:47:08 UTC 2024 - Matej Cepl <mcepl@cepl.eu>
 

python312.spec

@@ -182,6 +182,9 @@ Patch41:        docs-docutils_014-Sphinx_420.patch
 # PATCH-FIX-SLE doc-py38-to-py36.patch mcepl@suse.com
 # Make documentation extensions working with Python 3.6
 Patch44:        doc-py38-to-py36.patch
+# PATCH-FIX-UPSTREAM CVE-2024-12254-unbound-mem-buffering-SelectorSocketTransport.writelines.patch bsc#1234290 mcepl@suse.com
+# x
+Patch45:        CVE-2024-12254-unbound-mem-buffering-SelectorSocketTransport.writelines.patch
 BuildRequires:  autoconf-archive
 BuildRequires:  automake
 BuildRequires:  fdupes
@@ -438,8 +441,7 @@ This package contains libpython3.2 shared library for embedding in
 other applications.
 
 %prep
-%setup -q -n %{tarname}
+%autosetup -p1 -n %{tarname}
-%autopatch -p1
 
 # Fix devhelp doc build gh#python/cpython#120150
 echo "master_doc = 'contents'" >> Doc/conf.py