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
redhat: hardened images; redhat: openshift container platform; smuellerdd: libkcapi; redhat: enterprise linux
References8
- access.redhat.com/security/cve/CVE-2026-71227 Vendor Advisory
- bugzilla.redhat.com/show_bug.cgi?id=2462867 ExploitIssue TrackingVendor Advisory
- access.redhat.com/errata/RHSA-2026:56985
- access.redhat.com/errata/RHSA-2026:67265
- access.redhat.com/errata/RHSA-2026:67266
- access.redhat.com/errata/RHSA-2026:67267
- access.redhat.com/errata/RHSA-2026:69285
- access.redhat.com/errata/RHSA-2026:87712
Metrics
- CVSS 3.1
-
5.1
MEDIUM
Score source: NVD
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H - EPSS — exploit probability
- 0% percentile: 10 · as of 13 November 2026
- CWE
- CWE-835
Could this be exploited in your environment?
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