CVE Database›Document archive›CVE-2026-98699

CVE-2026-98699

kernel: wifi: mac80211: fix mesh fast xmit path deletion UAF

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Severity

Moderate

Red Hat Product Security

5.3

CVSS 3.1

Review impact separately from score.

Published · October 18, 2026

Updated · October 22, 2026

Description

A flaw was found in the Linux kernel's mac80211 wireless subsystem. A race condition occurs during mesh network path deletion when an active lookup reinserts an entry into the fast transmission cache after the cache has been cleared, resulting in a use-after-free condition where memory is accessed after being released. An attacker could exploit this flaw to cause a Denial of Service (DoS) by crashing the system or potentially achieve arbitrary code execution.

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 · 5.3
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE-825 · Expired Pointer Dereference