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7.3 High

CVE-2026-71226 Libkcapi: memory corruption via uncanceled aio requests on error in libkcapi's one-shot aio path

Description

Memory Corruption via Uncanceled AIO Requests on Error: libkcapi's one-shot AIO path can return an error before all submitted IOCBs are drained, allowing later kernel writes into caller-owned output buffers.

CVSS 3.1 detail

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

Exploitable with local access to the machine, without an account and without any user action; an attacker can seriously compromise confidentiality, integrity or availability.

Attack vector
Local
Attack complexity
Low
Privileges required
None
Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
High

Affected products and versions

Product Affected versions Fixed in
Red Hat Enterprise Linux 10 Versions not published
Red Hat Enterprise Linux 8 Versions not published
Red Hat Enterprise Linux 9 Versions not published
Red Hat Hardened Images 1.5 earliest → < 1.5.1-0.1.hum1 1.5.1-0.1.hum1
Red Hat OpenShift Container Platform 4 Versions not published
libkcapi 0.12 0.12.0 → < 1.5.1 1.5.1
Red Hat Enterprise Linux 10.0 Extended Update Support Versions not published
Red Hat Enterprise Linux 9.6 Extended Update Support Versions not published
Red Hat OpenShift Container Platform 5 Versions not published
Show the 3 other branches
Product Affected versions Fixed in
Red Hat Enterprise Linux 8.8 Telecommunications Update Service Versions not published
Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Versions not published
Red Hat OpenShift Container Platform 4.22 4.22 earliest → < 4.22.9.8.202611032353-0 4.22.9.8.202611032353-0

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