• CVE-2022-49479

发布时间: 2025年2月27日

修改时间: 2025年4月2日

概要

In the Linux kernel, the following vulnerability has been resolved: mt76: fix tx status related use-after-free race on station removal There is a small race window where ongoing tx activity can lead to a skb getting added to the status tracking idr after that idr has already been cleaned up, which will keep the wcid linked in the status poll list. Fix this by only adding status skbs if the wcid pointer is still assigned in dev->wcid, which gets cleared early by mt76_sta_pre_rcu_remove

CVSS v3 指标

NVD openEuler
CVSS评分 N/A 3.9
Attack Vector Local
Attack Complexity High
Privileges Required High
User Interaction None
Scope Unchanged
Confidentiality Low
Integrity Low
Availability Low

安全公告

公告名 概要 发布时间
KylinSec-SA-2025-1157 In the Linux kernel, the following vulnerability has been resolved: mt76: fix tx status related use-after-free race on station removal There is a small race window where ongoing tx activity can lead to a skb getting added to the status tracking idr after that idr has already been cleaned up, which will keep the wcid linked in the status poll list. Fix this by only adding status skbs if the wcid pointer is still assigned in dev->wcid, which gets cleared early by mt76_sta_pre_rcu_remove 2025年3月3日

影响产品

产品 状态
KY3.4-5 kernel Unaffected
KY3.5.3 kernel Unaffected
V6 kernel Unaffected