CVE-2026-23371

kernel: sched/deadline: Fix missing ENQUEUE_REPLENISH during PI de-boosting

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Severity

Unknown

Red Hat Product Security

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CVSS

Review impact separately from score.

Published · March 25, 2026

Updated · June 28, 2026

Description

A flaw was found in the Linux kernel's sched/deadline component. When a SCHED_DEADLINE task, which is a type of real-time task, has its priority class changed to a lower setting, it may not correctly inherit parameters from other DEADLINE tasks. This can lead to corruption in the bandwidth accounting mechanism, potentially causing system instability or unexpected behavior.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CWE-372 · Incomplete Internal State Distinction