CVE-2023-54215

kernel: virtio-vdpa: Fix cpumask memory leak in virtio_vdpa_find_vqs()

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Severity

Low

Red Hat Product Security

3.3

CVSS 3.1

Review impact separately from score.

Published · December 30, 2025

Updated · June 30, 2026

Description

A memory leak was found in the virtio-vdpa driver. The cpumask allocated by create_affinity_masks() is not freed before the function returns, causing a small memory leak each time virtqueues are set up.

Statement

This leak occurs during virtio-vdpa device initialization, primarily in virtualization environments using vDPA. The leaked memory is small per occurrence but could accumulate with repeated device operations.

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 · 3.3
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

CWE-772 · Missing Release of Resource after Effective Lifetime