CVE-2025-37985 USB: wdm: close race between wdm_open and wdm_wwan_port_stop
A race condition in the Linux kernel USB WDM driver can lead to a denial of service by accessing poisoned URBs during device stop.
- 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-2025-37985?
CVE-2025-37985 is a medium-severity 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:
USB: wdm: close race between wdm_open and wdm_wwan_port_stop
Clearing WDM_WWAN_IN_USE must be the last action or we can open a chardev whose URBs are still poisoned
Weakness: CWE-362
Which versions are affected by CVE-2025-37985?
It affects 2 products.
Products include Debian Debian Linux, Linux kernel.
How do I fix CVE-2025-37985?
Apply the vendor's patch.
Is CVE-2025-37985 being exploited?
There is no known exploitation of CVE-2025-37985 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as BELL-CVE-2025-37985, DEBIAN-CVE-2025-37985, GHSA-74hf-26w7-48xj, ROOT-OS-UBUNTU-2204-CVE-2025-37985, ROOT-OS-UBUNTU-2404-CVE-2025-37985, UBUNTU-CVE-2025-37985.