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CVE PROGRAM SOURCE RECORD5.1 Medium

CVE-2026-71227

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

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Status
Published
Published
Updated
Assigning organization
redhat

Description

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Stephan Muelle libkcapi

Default version status: unaffected

  • 0.12.0 to < 1.5.1affected

Red Hat Red Hat Enterprise Linux 10

Default version status: affected

  • 0:1.5.1-1.el10_2 to < *unaffected

Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support

Default version status: affected

  • 0:1.5.0-6.el10_0 to < *unaffected

Red Hat Red Hat Enterprise Linux 8

Default version status: affected

  • 0:1.4.0-3.el8_10 to < *unaffected

Red Hat Red Hat Enterprise Linux 9

Default version status: affected

  • 0:1.4.0-3.el9_8 to < *unaffected

Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support

Default version status: affected

  • 0:1.4.0-2.el9_6.1 to < *unaffected

Red Hat Red Hat Hardened Images

Default version status: affected

  • 1.5.1-0.1.hum1 to < *unaffected

Red Hat Red Hat OpenShift Container Platform 4

Default version status: affected

Red Hat Red Hat OpenShift Container Platform 4

Default version status: affected

References