Review reviewHigh

CVE-2022-49479

Linux Linux, linux kernel

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: 8.8
EPSS: 0.31%
CISA KEV: Not listed
Published: 2025.02.26

PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV

Exploit probability0.31%

Technical severityCVSS 8.8

Vulnerability overview

Affected product and versions

Product: Linux Linux, linux kernel
Affected versions: >= bd1e3e7b693c17a04e7d2bd9119daa482b7c7720 < ef7f9f894cfd0b2e471206409a529af4a26ddd55, >= bd1e3e7b693c17a04e7d2bd9119daa482b7c7720 < ddd426d72aca4054045a9bd3b80a4ce1d398f11f, >= bd1e3e7b693c17a04e7d2bd9119daa482b7c7720 < fcfe1b5e162bf473c1d47760962cec8523c00466, >= 5.16, >= 5.16 < 5.17.14, >= 5.18 < 5.18.3
Fixed versions: 5.17.14, 5.18.3

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide

1
Identify
Confirm that Linux Linux, linux kernel and an affected version are present.
2
Prioritize
Combine exploitation signals with asset exposure and business criticality.
3
Remediate
Follow the vendor advisory or supported update path and preserve rollback options.
4
Verify
Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE: CWE-416