[Python-checkins] [3.9] gh-87604: Avoid publishing list of active per-interpreter audit hooks via the gc module (GH-99373) (GH-99493)
ambv
webhook-mailer at python.org
Mon Nov 21 13:13:39 EST 2022
https://github.com/python/cpython/commit/7b98207aa46bd637d07a7c4a84e998726b74acde
commit: 7b98207aa46bd637d07a7c4a84e998726b74acde
branch: 3.9
author: Steve Dower <steve.dower at python.org>
committer: ambv <lukasz at langa.pl>
date: 2022-11-21T19:13:33+01:00
summary:
[3.9] gh-87604: Avoid publishing list of active per-interpreter audit hooks via the gc module (GH-99373) (GH-99493)
files:
A Misc/NEWS.d/next/Security/2022-11-11-12-50-28.gh-issue-87604.OtwH5L.rst
M Lib/test/audit-tests.py
M Lib/test/test_audit.py
M Python/sysmodule.c
diff --git a/Lib/test/audit-tests.py b/Lib/test/audit-tests.py
index 95216bcc4825..6de636a9e9dc 100644
--- a/Lib/test/audit-tests.py
+++ b/Lib/test/audit-tests.py
@@ -368,6 +368,17 @@ def hook(event, args):
gc.get_referents(y)
+def test_not_in_gc():
+ import gc
+
+ hook = lambda *a: None
+ sys.addaudithook(hook)
+
+ for o in gc.get_objects():
+ if isinstance(o, list):
+ assert hook not in o
+
+
if __name__ == "__main__":
from test.support import suppress_msvcrt_asserts
diff --git a/Lib/test/test_audit.py b/Lib/test/test_audit.py
index 387a31229a2f..e47e5569c2b9 100644
--- a/Lib/test/test_audit.py
+++ b/Lib/test/test_audit.py
@@ -132,6 +132,11 @@ def test_gc(self):
["gc.get_objects", "gc.get_referrers", "gc.get_referents"]
)
+ def test_not_in_gc(self):
+ returncode, _, stderr = self.run_python("test_not_in_gc")
+ if returncode:
+ self.fail(stderr)
+
if __name__ == "__main__":
unittest.main()
diff --git a/Misc/NEWS.d/next/Security/2022-11-11-12-50-28.gh-issue-87604.OtwH5L.rst b/Misc/NEWS.d/next/Security/2022-11-11-12-50-28.gh-issue-87604.OtwH5L.rst
new file mode 100644
index 000000000000..c931409b8171
--- /dev/null
+++ b/Misc/NEWS.d/next/Security/2022-11-11-12-50-28.gh-issue-87604.OtwH5L.rst
@@ -0,0 +1,2 @@
+Avoid publishing list of active per-interpreter audit hooks via the
+:mod:`gc` module
diff --git a/Python/sysmodule.c b/Python/sysmodule.c
index 8efa850dce6f..a8f2f021c326 100644
--- a/Python/sysmodule.c
+++ b/Python/sysmodule.c
@@ -440,6 +440,8 @@ sys_addaudithook_impl(PyObject *module, PyObject *hook)
if (is->audit_hooks == NULL) {
return NULL;
}
+ /* Avoid having our list of hooks show up in the GC module */
+ PyObject_GC_UnTrack(is->audit_hooks);
}
if (PyList_Append(is->audit_hooks, hook) < 0) {
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