CVE Database›CVE-2024-53057

CVE-2024-53057

kernel: net/sched: stop qdisc_tree_reduce_backlog on TC_H_ROOT

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Severity

Moderate

Red Hat Product Security

6.7

CVSS 3.1

Review impact separately from score.

Published · November 19, 2024

Updated · October 29, 2026

Description

A flaw was found in the packet scheduler API in the Linux kernel. An invalid assumption about qdiscs with major handle ffff allows qdiscs, such as DRR, that maintain an active class list to cause a use-after-free with a dangling class pointer.

Statement

This issue can only be exploited by an attacker with admin or root privileges, limiting the impact of this flaw. For this reason, this vulnerability has been rated with a Moderate severity.

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 · 6.7
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

CWE-416 · Use After Free