CVE-2026-46235 media: saa7164: add ioremap return checks and cleanups
A missing check for ioremap failure in the saa7164 driver can lead to a null pointer dereference, causing a system crash.
- 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-2026-46235?
CVE-2026-46235 is a medium-severity vulnerability in Linux kernel, published on 28 May 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: saa7164: add ioremap return checks and cleanups
Add checks for ioremap return values in saa7164_dev_setup(). If ioremap for BAR0 or BAR2 fails, release the already allocated PCI memory regions, remove the device from the global list, decrement the device count, and return -ENODEV.
This prevents potential null pointer dereferences and ensures proper cleanup on memory mapping failures.
Weakness: CWE-476
Which versions are affected by CVE-2026-46235?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2026-46235?
Apply the vendor's patch.
Is CVE-2026-46235 being exploited?
There is no known exploitation of CVE-2026-46235 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as BELL-CVE-2026-46235, DEBIAN-CVE-2026-46235, GHSA-g99c-g7mv-2xpg, ROOT-OS-DEBIAN-11-CVE-2026-46235, ROOT-OS-DEBIAN-12-CVE-2026-46235, ROOT-OS-UBUNTU-2204-CVE-2026-46235 and 2 more.