CVE-2022-49479

High

Description

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

SeverityHigh
CVSS8.8
Exploit probability—
ProductLinux Kernel
PublishedFeb 26, 2025
First seenFeb 26, 2025

How to fix

Update
  • linux linux_kernel5.17.14, 5.18.3 or later

Affected products

ProductAffected versionsFixed in
linux linux_kernel5.16 ≤ v < 5.17.14, 5.18 ≤ v < 5.18.35.17.14, 5.18.3

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