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CVE-2023-53426

kernel: Linux kernel: Denial of Service in xsk_diag due to use-after-free during socket cleanup

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Severity

Low

Red Hat Product Security

5.5

CVSS 3.1

Review impact separately from score.

Published · September 18, 2025

Updated · July 21, 2026

Description

A flaw was found in the Linux kernel's xsk_diag interface. This vulnerability, a use-after-free error, occurs when the xsk_diag interface is used after a socket has been unbound from its device, such as during socket closure or device removal. A local attacker could exploit this flaw to cause a system crash, leading to a Denial of Service (DoS).

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-825 · Expired Pointer Dereference