CVE-2025-68755 staging: most: remove broken i2c driver
A NULL pointer dereference in the Linux kernel MOST I2C driver causes a system crash if the driver is probed, requiring local access or specific hardware configuration.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2025-68755?
CVE-2025-68755 is a vulnerability in Linux, published on 5 Jan 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:
staging: most: remove broken i2c driver
The MOST I2C driver has been completely broken for five years without anyone noticing so remove the driver from staging.
Specifically, commit 723de0f9171e ("staging: most: remove device from interface structure") started requiring drivers to set the interface device pointer before registration, but the I2C driver was never updated which results in a NULL pointer dereference if anyone ever tries to probe it.
Which versions are affected by CVE-2025-68755?
How do I fix CVE-2025-68755?
Apply the vendor's patch.
Is CVE-2025-68755 being exploited?
There is no known exploitation of CVE-2025-68755 in the wild and no public exploit code.
Sources
Also known as BELL-CVE-2025-68755, DEBIAN-CVE-2025-68755, GHSA-7g54-f344-23m9, ROOT-OS-DEBIAN-11-CVE-2025-68755, ROOT-OS-DEBIAN-12-CVE-2025-68755, ROOT-OS-DEBIAN-13-CVE-2025-68755 and 3 more.