vulnerability
Red Hat: CVE-2022-49479: kernel: mt76: fix tx status related use-after-free race on station removal
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 6 | (AV:L/AC:M/Au:S/C:P/I:P/A:C) | Feb 26, 2025 | Jul 9, 2025 | Jul 10, 2025 |
Severity
6
CVSS
(AV:L/AC:M/Au:S/C:P/I:P/A:C)
Published
Feb 26, 2025
Added
Jul 9, 2025
Modified
Jul 10, 2025
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
Solution
no-fix-redhat-rpm-package
References
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