medium5.1
CVE-2026-71227
A flaw was found in libkcapi.
Impact
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
| Vendor | Product | Affected versions |
|---|---|---|
| Redhat | Hardened Images | All versions |
| Redhat | Openshift Container Platform | Version 4.0 |
| Smuellerdd | Libkcapi | from 0.12.0 before 1.5.1 |
| Redhat | Enterprise Linux | Versions 8.0, 9.0, 10.0 |
| Stephan Muelle | Libkcapi | from 0.12.0 before 1.5.1 |
| Red Hat | Red Hat Enterprise Linux 10 | All versions Version patch: 0:1.5.1-1.el10_2 |
| Red Hat | Red Hat Enterprise Linux 10.0 Extended Update Support | All versions Version patch: 0:1.5.0-6.el10_0 |
| Red Hat | Red Hat Enterprise Linux 8 | All versions Version patch: 0:1.4.0-3.el8_10 |
| Red Hat | Red Hat Enterprise Linux 9 | All versions Version patch: 0:1.4.0-3.el9_8 |
| Red Hat | Red Hat Enterprise Linux 9.6 Extended Update Support | All versions Version patch: 0:1.4.0-2.el9_6.1 |
| Red Hat | Red Hat Hardened Images | All versions Version patch: 1.5.1-0.1.hum1 |
| Red Hat | Red Hat OpenShift Container Platform 4 | All versions |
| Red Hat | Red Hat OpenShift Container Platform 5 | All versions |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://access.redhat.com/errata/RHSA-2026:56985
- https://access.redhat.com/errata/RHSA-2026:67265
- https://access.redhat.com/errata/RHSA-2026:67266
- https://access.redhat.com/errata/RHSA-2026:67267
- https://access.redhat.com/errata/RHSA-2026:69285
- https://access.redhat.com/errata/RHSA-2026:87712
- https://access.redhat.com/security/cve/CVE-2026-71227
- https://bugzilla.redhat.com/show_bug.cgi?id=2462867