Sandbox Escape: Linux PI futex self-requeue bug

I hope I haven't messed something up... The issue exists when after blocking in futexwaitrequeuepi, q.rtwaiter is NULL but &rtwaiter on the stack has been added to various waiter lists by rtmutexstartproxylock. This is not supposed to be possible, because setting rtwaiter to NULL indicates atomic...

Debian: Security Advisory (DSA-2790-1)

The remote host is missing an update for the Debian SPDX-FileCopyrightText: 2013 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...