CVE-2023-53995

kernel: Linux kernel: Denial of Service due to memory leak in IP address deletion

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Severity

Moderate

Red Hat Product Security

5.5

CVSS 3.1

Review impact separately from score.

Published · December 24, 2025

Updated · June 30, 2026

Description

A flaw was found in the Linux kernel. An incorrect handling of the 'last_prim' value within the __inet_del_ifa() function during IP address deletion can be triggered by a local user. This memory leak leads to resource exhaustion, potentially causing a Denial of Service (DoS) on the system.

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-772 · Missing Release of Resource after Effective Lifetime