CVE-2025-21992 HID: ignore non-functional sensor in HP 5MP Camera
A local attacker can cause a system hang by accessing a non-functional HID sensor in the HP 5MP Camera driver, requiring a kernel patch.
- 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-2025-21992?
CVE-2025-21992 is a medium-severity denial of service vulnerability in Linux kernel, published on 2 Apr 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:
HID: ignore non-functional sensor in HP 5MP Camera
The HP 5MP Camera (USB ID 0408:5473) reports a HID sensor interface that is not actually implemented. Attempting to access this non-functional sensor via iio_info causes system hangs as runtime PM tries to wake up an unresponsive sensor.
[453] hid-sensor-hub 0003:0408:5473.0003: Report latency attributes: ffffffff:ffffffff [453] hid-sensor-hub 0003:0408:5473.0003: common attributes: 5:1, 2:1, 3:1 ffffffff:ffffffff
Add this device to the HID ignore list since the sensor interface is non-functional by design and should not be exposed to userspace.
Which versions are affected by CVE-2025-21992?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2025-21992?
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-2025-21992 being exploited?
There is no known exploitation of CVE-2025-21992 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as BELL-CVE-2025-21992, DEBIAN-CVE-2025-21992, GHSA-xc54-8222-cmjv, ROOT-OS-UBUNTU-2404-CVE-2025-21992, UBUNTU-CVE-2025-21992.