CVE-2026-68226 media: cx23885: add ioremap return check and cleanup
A missing check for ioremap failure in the cx23885 driver can cause a null pointer dereference, leading to a system crash.
- 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-2026-68226?
CVE-2026-68226 is a vulnerability in Linux, published on 10 Aug 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:
media: cx23885: add ioremap return check and cleanup
Add a check for the return value of pci_ioremap_bar() in cx23885_dev_setup(). If ioremap for BAR0 fails, release the already allocated PCI memory region, decrement the device count, and return -ENODEV.
This prevents a potential null pointer dereference and ensures proper cleanup on memory mapping failure.
Which versions are affected by CVE-2026-68226?
How do I fix CVE-2026-68226?
Apply the vendor's patch.
Is CVE-2026-68226 being exploited?
There is no known exploitation of CVE-2026-68226 in the wild and no public exploit code.
Sources
Also known as BELL-CVE-2026-68226, DEBIAN-CVE-2026-68226, GHSA-qv7m-p22w-x3r6, UBUNTU-CVE-2026-68226.