CVE-2026-31632

kernel: rxrpc: Fix leak of rxgk context in rxgk_verify_response()

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Severity

Moderate

Red Hat Product Security

5.5

CVSS 3.1

Review impact separately from score.

Published · April 24, 2026

Updated · June 28, 2026

Description

A flaw was found in the Linux kernel's rxrpc component. The rxgk_verify_response() function fails to properly clean up the rxgk context it creates, leading to a memory leak. This vulnerability could potentially allow an attacker to cause a Denial of Service (DoS) by exhausting available memory resources.

Statement

RxGK response verification leaked context objects on some paths; upstream frees correctly. Red Hat notes this is a memory-leak / stability class defect in rxrpc GSSAPI handling.

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