CVE Database›CVE-2024-50039

CVE-2024-50039

kernel: net/sched: accept TCA_STAB only for root qdisc

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Severity

Moderate

Red Hat Product Security

5.5

CVSS 3.1

Review impact separately from score.

Published · October 21, 2024

Updated · October 29, 2026

Description

A flaw was found in the Linux kernel's network scheduler. A local attacker with low privileges could exploit a vulnerability related to the handling of the TCA_STAB traffic control attribute when used with certain queueing disciplines (qdiscs) like TBF and SFQ. This improper handling can lead to a kernel NULL pointer dereference, causing the system to crash and resulting in a denial of service.

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 · 5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CWE-476 · NULL Pointer Dereference