CVE Database›Document archive›CVE-2026-98811

CVE-2026-98811

kernel: net/sched: cls_api: reclaim an empty proto on the error path

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Severity

Low

Red Hat Product Security

3.3

CVSS 3.1

Review impact separately from score.

Published · October 18, 2026

Updated · October 24, 2026

Description

A flaw was found in the Linux kernel's network traffic control classifier subsystem. A local attacker with network administration privileges could exploit a race condition by submitting concurrent filter addition requests that fail during creation. Due to improper error handling, the kernel fails to properly reclaim empty protocol structures, leaving unreleased references in memory. This issue leads to a resource leak, which may result in a Denial of Service (DoS).

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