CVE-2024-26637 wifi: ath11k: rely on mac80211 debugfs handling for vif
A use-after-free or null dereference in the ath11k WiFi driver causes a kernel crash when debugfs entries are deleted by mac80211.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2024-26637?
CVE-2024-26637 is a high-severity vulnerability in Linux kernel, published on 18 Mar 2024. It can only be exploited from the same machine or local network, with no action from the victim.
Official 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.
Which versions are affected by CVE-2024-26637?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2024-26637?
Apply the vendor's patch.
Is CVE-2024-26637 being exploited?
There is no known exploitation of CVE-2024-26637 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as BELL-CVE-2024-26637, GHSA-chmj-69q7-qhgf, UBUNTU-CVE-2024-26637.