CVE-2026-53104 wifi: mt76: Fix memory leak destroying device
A memory leak in the MT76 Wi-Fi driver during device destruction can lead to resource exhaustion and denial of service.
- 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-2026-53104?
CVE-2026-53104 is a medium-severity denial of service vulnerability in Linux kernel, published on 24 Jun 2026. 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: Fix memory leak destroying device
All MT76 rx queues have an associated page_pool even if the queue is not associated to a NAPI (e.g. WED RRO queues with WED enabled). Destroy the page_pool running mt76_dma_cleanup routine during module unload. Moreover returns pages to the page pool if WED is not enabled for WED RRO queues.
Weakness: CWE-401
Which versions are affected by CVE-2026-53104?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2026-53104?
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-2026-53104 being exploited?
There is no known exploitation of CVE-2026-53104 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as BELL-CVE-2026-53104, DEBIAN-CVE-2026-53104, GHSA-m2xr-rm39-xmjv, ROOT-OS-DEBIAN-13-CVE-2026-53104, ROOT-OS-UBUNTU-2404-CVE-2026-53104, UBUNTU-CVE-2026-53104.