CVE Database›Document archive›CVE-2021-47592

CVE-2021-47592

kernel: net: stmmac: fix tc flower deletion for VLAN priority Rx steering

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Severity

Moderate

Red Hat Product Security

4.4

CVSS 3.1

Review impact separately from score.

Published · June 19, 2024

Updated · June 28, 2026

Description

A vulnerability was found in the Linux kernel's net component in the stmmac driver, where improper deletion of VLAN priority filters caused a kernel NULL pointer dereference which occurs during the deletion of specific tc flower records, leading to potential system crashes.

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

Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

CVSS / CWE

CVSS 3.1 · 4.4
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

CWE-476 · NULL Pointer Dereference