CVE-2023-52468

2024-02-2717:03:42

redhat.com

access.redhat.com

cve-2023-52468

lock_keys_hash

subsys_private error

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

6.5 Medium

AI Score

Confidence

Low

0.0004 Low

EPSS

Percentile

5.1%

JSON

A use-after-free flaw was found in class_register() in the Linux kernel. This issue occurs due to the lock_class_key is still being registered and found in lock_keys_hash hlist after subsys_private is freed in the error handler path. If a task iterates over the lock_keys_hash, it may cause a use-after-free.