CVE-2021-47474

kernel: comedi: vmk80xx: fix bulk-buffer overflow

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Severity

Moderate

Red Hat Product Security

7.8

CVSS 3.1

Review impact separately from score.

Published · May 22, 2024

Updated · November 21, 2025

Description

A flaw was found in the vmk80xx module in the Linux kernel. A malicious device can overflow the slab-allocated receive buffer when doing bulk transfers, resulting in a denial of service.

Statement

The vmk80xx module is not built in the kernel shipped in Red Hat Enterprise Linux, so it is not affected by this vulnerability.

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 · 7.8
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CWE-119 · Improper Restriction of Operations within the Bounds of a Memory Buffer