CVE-2023-54246

kernel: rcuscale: Move rcu_scale_writer() schedule_timeout_uninterruptible() to _idle()

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Severity

Low

Red Hat Product Security

2.5

CVSS 3.1

Review impact separately from score.

Published · December 30, 2025

Updated · June 30, 2026

Description

A hung task warning issue was found in the RCU scaling test module. When the holdoff parameter exceeds hung_task_timeout_secs, the kernel logs a hung task warning for the rcu_scale_writer kthread.

Statement

This affects only the rcuscale test module, which is not loaded in production systems. The warning occurs only with specific module parameters during RCU performance testing and does not impact normal kernel operation.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 2.5
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L

CWE-628 · Function Call with Incorrectly Specified Arguments