CVE-2026-53180

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description A livelock occurs in the tmigr handle remote up() function. The tmigr handle remote cpu() function incorrectly skips timer expire remote() when the CPU matches smp processor id(), assuming local softirq paths have already handled the timers. However, because jiffies can advance between the handling of global timers in run timer base(BASE GLOBAL) and the evaluation of expiry times in tmigr handle remote(), certain timers may be ignored. This prevents the callback from being invoked or removed from the timer wheel. Consequently, fetch next timer interrupt remote() continues to report the timer as expired, causing the event to be re-queued indefinitely and resulting in a loop that spins without termination.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.