https://vulnerability.circl.lu Contains only the most 10 recent entries. http://www.rssboard.org/rss-specification python-feedgen en Tue, 29 Sep 2026 23:47:54 +0000 https://vulnerability.circl.lu/vuln/cve-2023-53815 <p><strong>Affected:</strong> Linux</p> <p>In the Linux kernel, the following vulnerability has been resolved:</p> <p>posix-timers: Prevent RT livelock in itimer_delete()</p> <p>itimer_delete() has a retry loop when the timer is concurrently expired. On non-RT kernels this just spin-waits until the timer callback has completed, except for posix CPU timers which have HAVE_POSIX_CPU_TIMERS_TASK_WORK enabled.</p> <p>In that case and on RT kernels the existing task could live lock when preempting the task which does the timer delivery.</p> <p>Replace spin_unlock() with an invocation of timer_wait_running() to handle it the same way as the other retry loops in the posix timer code.</p> <p><strong>Affected:</strong> Linux</p> <p>In the Linux kernel, the following vulnerability has been resolved:</p> <p>posix-timers: Prevent RT livelock in itimer_delete()</p> <p>itimer_delete() has a retry loop when the timer is concurrently expired. On non-RT kernels this just spin-waits until the timer callback has completed, except for posix CPU timers which have HAVE_POSIX_CPU_TIMERS_TASK_WORK enabled.</p> <p>In that case and on RT kernels the existing task could live lock when preempting the task which does the timer delivery.</p> <p>Replace spin_unlock() with an invocation of timer_wait_running() to handle it the same way as the other retry loops in the posix timer code.</p> https://vulnerability.circl.lu/vuln/cve-2023-53815