CVE-2023-53466 wifi: mt76: mt7915: fix memory leak in mt7915_mcu_exit
A memory leak in the mt7915 Wi-Fi driver allows attackers to cause a denial of service by exhausting system memory.
- 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-2023-53466?
CVE-2023-53466 is a medium-severity denial of service vulnerability in Linux kernel, published on 1 Oct 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: mt76: mt7915: fix memory leak in mt7915_mcu_exit
Always purge mcu skb queues in mt7915_mcu_exit routine even if mt7915_firmware_state fails.
Weakness: CWE-401
Which versions are affected by CVE-2023-53466?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2023-53466?
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-2023-53466 being exploited?
There is no known exploitation of CVE-2023-53466 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as BELL-CVE-2023-53466, DEBIAN-CVE-2023-53466, GHSA-p6xh-5j4q-m59x, ROOT-OS-DEBIAN-11-CVE-2023-53466, ROOT-OS-UBUNTU-2204-CVE-2023-53466, UBUNTU-CVE-2023-53466.