CVE-2026-64249 fpga: region: fix use-after-free in child_regions_with_firmware()
A use-after-free vulnerability in the Linux kernel's FPGA region driver allows attackers to potentially execute code or cause 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-2026-64249?
CVE-2026-64249 is a high-severity use after free vulnerability in Linux kernel, published on 24 Jul 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:
fpga: region: fix use-after-free in child_regions_with_firmware()
Move of_node_put(child_region) after the error print to avoid accessing freed memory when pr_err() references child_region.
[ Yilun: Fix the Fixes tag ]
Weakness: CWE-416
Which versions are affected by CVE-2026-64249?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2026-64249?
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-2026-64249 being exploited?
There is no known exploitation of CVE-2026-64249 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as BELL-CVE-2026-64249, DEBIAN-CVE-2026-64249, GHSA-hmrv-6g38-c354, ROOT-OS-UBUNTU-2204-CVE-2026-64249, UBUNTU-CVE-2026-64249.