CVE-2022-48699

kernel: sched/debug: fix dentry leak in update_sched_domain_debugfs

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Severity

Low

Red Hat Product Security

5.5

CVSS 3.1

Review impact separately from score.

Published · May 3, 2024

Updated · October 20, 2026

Description

A flaw was found in the Linux kernel scheduler debugfs code. update_sched_domain_debugfs() removes a debugfs entry with debugfs_remove(debugfs_lookup()), which leaks a dentry reference. Repeated CPU hotplug can exhaust kernel memory and cause a denial of service.

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 · 5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CWE-401 · Missing Release of Memory after Effective Lifetime