CVE-2024-26637: wifi: ath11k: rely on mac80211 debugfs handling for vif

Severity: medium (CVSS 5.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-03-18 · updated 2026-08-04

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: ath11k: rely on mac80211 debugfs handling for vif mac80211 started to delete debugfs entries in certain cases, causing a ath11k to crash when it tried to delete the entries later. Fix this by relying on mac80211 to delete the entries when appropriate and adding them from the vif_add_debugfs handler.

Affected products

Linux kernel: from 6.7 before 6.7.3; 6.8-rc1 — fixed in 6.7.3

How to fix

Upgrade to a fixed version: Linux kernel 6.7.3. Check the vendor advisory for mitigations.

References

https://git.kernel.org/stable/c/556857aa1d0855aba02b1c63bc52b91ec63fc2cc
https://git.kernel.org/stable/c/aa74ce30a8a40d19a4256de4ae5322e71344a274
https://git.kernel.org/stable/c/556857aa1d0855aba02b1c63bc52b91ec63fc2cc
https://git.kernel.org/stable/c/aa74ce30a8a40d19a4256de4ae5322e71344a274

Get alerted when CVE-2024-26637 or the next vulnerability affects your stack