CVE-2026-53321

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
26/06/2026
Last modified:
30/06/2026

Description

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> io_uring/napi: cap busy_poll_to 10 msec<br /> <br /> Currently there&amp;#39;s no cap on the maximum amount of time that napi is<br /> allowed to poll if no events are found, which can lead to kernel<br /> complaints on a task being stuck as there&amp;#39;s no conditional rescheduling<br /> done within that loop.<br /> <br /> Just cap it to 10 msec in total, that&amp;#39;s already way above any kind of<br /> sane value that will reap any benefits, yet low enough that it&amp;#39;s<br /> nowhere near being able to trigger preemption complaints.

Impact