Loop with Unreachable Exit Condition ('Infinite Loop') Affecting kernel-rt-debug package, versions *


Severity

Recommended
0.0
medium
0
10

Based on CentOS security rating.

Threat Intelligence

EPSS
0.15% (5th percentile)

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  • Snyk IDSNYK-CENTOS10-KERNELRTDEBUG-17692389
  • published30 Jun 2026
  • disclosed26 Jun 2026

Introduced: 26 Jun 2026

NewCVE-2026-53321  (opens in a new tab)
CWE-835  (opens in a new tab)

How to fix?

There is no fixed version for Centos:10 kernel-rt-debug.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-rt-debug package and not the kernel-rt-debug package as distributed by Centos. See How to fix? for Centos:10 relevant fixed versions and status.

In the Linux kernel, the following vulnerability has been resolved:

io_uring/napi: cap busy_poll_to 10 msec

Currently there's no cap on the maximum amount of time that napi is allowed to poll if no events are found, which can lead to kernel complaints on a task being stuck as there's no conditional rescheduling done within that loop.

Just cap it to 10 msec in total, that's already way above any kind of sane value that will reap any benefits, yet low enough that it's nowhere near being able to trigger preemption complaints.

CVSS Base Scores

version 3.1