CVE-2023-26545

kernel: mpls: double free on sysctl allocation failure

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Severity

Moderate

Red Hat Product Security

4.7

CVSS 3.1

Review impact separately from score.

Published · February 15, 2023

Updated · June 28, 2026

Description

A double-free flaw was found in the Linux kernel when the MPLS implementation handled sysctl allocation failures. This issue could allow a local user to cause a denial of service or possibly execute arbitrary code.

Statement

Red Hat Enterprise Linux 6 and 7 are not affected by this flaw as they did not include MPLS routing support, which was introduced upstream in version 4.1-rc1 (commit 0189197 "mpls: Basic routing support").

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 · 4.7
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

CWE-415 · Double Free