CVE-2026-46226 spi: fsl: fix controller deregistration
A use-after-free vulnerability in the Linux kernel's fsl SPI driver during unbind allows attackers to cause denial of service or execute code.
- 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-2026-46226?
CVE-2026-46226 is a medium-severity use after free 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:
spi: fsl: fix controller deregistration
Make sure to deregister the controller before releasing underlying resources like DMA during driver unbind.
Which versions are affected by CVE-2026-46226?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2026-46226?
Apply the vendor's patch.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2026-46226 being exploited?
There is no known exploitation of CVE-2026-46226 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as AZL-88818, BELL-CVE-2026-46226, DEBIAN-CVE-2026-46226, GHSA-h384-m94j-8hmh, ROOT-OS-DEBIAN-11-CVE-2026-46226, ROOT-OS-DEBIAN-12-CVE-2026-46226 and 3 more.