CVE-2026-71227 MEDIUM

CVE-2026-71227: Libkcapi: infinite loop denial of service in libkcapi _kcapi_aio_read_all() due to unhandled io_getevents() timeout return

Vendor Red Hat
Product Red Hat Enterprise Linux 10
Weakness CWE-835
Published August 5, 2026
Last update August 5, 2026
View on NVD All CVEs

CVSS base score

5.1/10
Attack vector Local
Attack complexity High
Privileges required None
User interaction None
Confidentiality None
Integrity None

CVSS vector

CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

What the vulnerability does

01Description

A flaw was found in libkcapi. A local attacker can influence an application that uses the Asynchronous Input/Output (AIO) interface. By reusing an AIO-enabled handle after a prior completion error, the _kcapi_aio_read_all() function can enter a non-terminating wait loop. This can lead to a persistent denial of service, making the affected application or thread unresponsive.

Key dates

02Disclosure timeline

August 5, 2026 CVE published
August 5, 2026 Record updated