CVE-2025-37982 wifi: wl1251: fix memory leak in wl1251_tx_work
A memory leak in the wl1251 Wi-Fi driver can lead to resource exhaustion and denial of service when the device fails to wake up.
- 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-2025-37982?
CVE-2025-37982 is a medium-severity denial of service vulnerability in Debian Debian Linux, published on 20 May 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: wl1251: fix memory leak in wl1251_tx_work
The skb dequeued from tx_queue is lost when wl1251_ps_elp_wakeup fails with a -ETIMEDOUT error. Fix that by queueing the skb back to tx_queue.
Weakness: CWE-401
Which versions are affected by CVE-2025-37982?
It affects 2 products.
Products include Debian Debian Linux, Linux kernel.
How do I fix CVE-2025-37982?
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-2025-37982 being exploited?
There is no known exploitation of CVE-2025-37982 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as BELL-CVE-2025-37982, DEBIAN-CVE-2025-37982, GHSA-3jv8-gwwx-wwrw, ROOT-OS-DEBIAN-11-CVE-2025-37982, ROOT-OS-UBUNTU-2204-CVE-2025-37982, ROOT-OS-UBUNTU-2404-CVE-2025-37982 and 1 more.