CVE-2023-52800 wifi: ath11k: fix htt pktlog locking
A use-after-free vulnerability in the ath11k WiFi driver allows attackers to potentially execute code or cause a denial of service.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2023-52800?
CVE-2023-52800 is a medium-severity use after free vulnerability in Linux kernel, published on 21 May 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: fix htt pktlog locking
The ath11k active pdevs are protected by RCU but the htt pktlog handling code calling ath11k_mac_get_ar_by_pdev_id() was not marked as a read-side critical section.
Mark the code in question as an RCU read-side critical section to avoid any potential use-after-free issues.
Compile tested only.
Weakness: CWE-416
Which versions are affected by CVE-2023-52800?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2023-52800?
Apply the vendor's patch.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2023-52800 being exploited?
There is no known exploitation of CVE-2023-52800 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as BELL-CVE-2023-52800, DEBIAN-CVE-2023-52800, GHSA-5p99-hcg9-j3m3, UBUNTU-CVE-2023-52800.