CVE-2023-54275 wifi: ath11k: Fix memory leak in ath11k_peer_rx_frag_setup
A memory leak in the ath11k WiFi driver allows attackers to cause a denial of service by triggering specific peer setup failures.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2023-54275?
CVE-2023-54275 is a denial of service vulnerability in Linux, published on 30 Dec 2025. 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 memory leak in ath11k_peer_rx_frag_setup
crypto_alloc_shash() allocates resources, which should be released by crypto_free_shash(). When ath11k_peer_find() fails, there has memory leak. Add missing crypto_free_shash() to fix this.
Which versions are affected by CVE-2023-54275?
How do I fix CVE-2023-54275?
Apply the vendor's patch.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2023-54275 being exploited?
There is no known exploitation of CVE-2023-54275 in the wild and no public exploit code.
Sources
Also known as BELL-CVE-2023-54275, DEBIAN-CVE-2023-54275, GHSA-fg5h-p8w5-653v, UBUNTU-CVE-2023-54275.