CVE-2026-71227
Discovered by AISLEPUBLISHEDCWE-835
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.
CVSS Base Scores
CVSS v3.1(Primary)
5.1CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Products
| Vendor | Product | Version | Status |
|---|---|---|---|
| Stephan Muelle | libkcapi | 0.12.0 | affected |
| Red Hat | Red Hat Enterprise Linux 10 | 0:1.5.1-1.el10_2 | unaffected |
| Red Hat | Red Hat Enterprise Linux 10.0 Extended Update Support | 0:1.5.0-6.el10_0 | unaffected |
| Red Hat | Red Hat Enterprise Linux 8 | 0:1.4.0-3.el8_10 | unaffected |
| Red Hat | Red Hat Enterprise Linux 9 | 0:1.4.0-3.el9_8 | unaffected |
| Red Hat | Red Hat Enterprise Linux 9.6 Extended Update Support | 0:1.4.0-2.el9_6.1 | unaffected |
| Red Hat | Red Hat Hardened Images | 1.5.1-0.1.hum1 | unaffected |
| Red Hat | Red Hat OpenShift Container Platform 4 | — | — |
| Red Hat | Red Hat OpenShift Container Platform 5 | — | — |
Credits
- This issue was discovered by Found by AISLE in partnership with Red Hat.
References
- 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