CVE-2023-53815 in Linux Kernel

要約 (英語)

In the Linux kernel, the following vulnerability has been resolved: posix-timers: Prevent RT livelock in itimer_delete() 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. In that case and on RT kernels the existing task could live lock when preempting the task which does the timer delivery. 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.

責任者

Linux

予約する

2025年12月09日

公開

2025年12月09日

エントリ

VulDB provides additional information and datapoints for this CVE:

識別子	脆弱性	CWE	悪用可	対策	CVE
335079	Linux Kernel itimer_delete サービス拒否	835	未定義	公式な修正	CVE-2023-53815