CVE-2026-98351

kernel: wifi: virt_wifi: free skb when disconnected

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Severity

Moderate

Red Hat Product Security

5.5

CVSS 3.1

Review impact separately from score.

Published · October 6, 2026

Updated · October 11, 2026

Description

A flaw was found in the Linux kernel's virtual Wi-Fi (virt_wifi) driver. This issue can result in a Denial of Service (DoS) due to an unreleased memory leak. When a simulated wireless link is disconnected, the driver fails to free packet buffers after dropping outgoing network packets. A local user can exploit this vulnerability by transmitting network traffic over the disconnected interface, potentially exhausting system memory.

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

CWE-772 · Missing Release of Resource after Effective Lifetime