CVE-2022-49479

HIGH EPSS 15.3%
Published Feb 26, 20251y ago · Modified Jun 17, 20261w ago
7.8 CVSS 3.1
High
Find Similar
Published Feb 26, 2025 1y ago
Last Modified Jun 17, 2026 1w ago

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

CVSS Details

Base Score
7.8
Exploitability
1.8
Impact
5.9
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
15.3% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-416 Use After Free Memory Safety

Affected Products 2

VendorProductVersionRange
linuxlinux_kernel*≥5.16  –  <5.17.14
linuxlinux_kernel*≥5.18  –  <5.18.3

References 3

  • git.kernel.org https://git.kernel.org/stable/c/ddd426d72aca4054045a9bd3b80a4ce1d398f11f
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/ef7f9f894cfd0b2e471206409a529af4a26ddd55
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/fcfe1b5e162bf473c1d47760962cec8523c00466
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/ddd426d72aca4054045a9bd3b80a4ce1d398f11f
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/ef7f9f894cfd0b2e471206409a529af4a26ddd55
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/fcfe1b5e162bf473c1d47760962cec8523c00466
    Patch