X Tutup
Skip to content

bpo-45262: Prevent use-after-free in asyncio #28796

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
vstinner merged 1 commit into from
Oct 7, 2021
Merged

bpo-45262: Prevent use-after-free in asyncio #28796

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
1 change: 1 addition & 0 deletions Misc/NEWS.d/next/Library/2021-10-07-14-04-10.bpo-45262.HqF71Z.rst
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -0,0 +1 @@
Prevent use-after-free in asyncio. Make sure the cached running loop holder gets cleared on dealloc to prevent use-after-free in get_running_loop
3 changes: 3 additions & 0 deletions Modules/_asynciomodule.c
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -3239,6 +3239,9 @@ new_running_loop_holder(PyObject *loop)
static void
PyRunningLoopHolder_tp_dealloc(PyRunningLoopHolder *rl)
{
if (cached_running_holder == (PyObject *)rl) {
cached_running_holder = NULL;
}
Py_CLEAR(rl->rl_loop);
PyObject_Free(rl);
}
Expand Down
X Tutup