CVE-2026-64246 power: reset: linkstation-poweroff: fix use-after-free in the linkstation_poweroff_init()

High 7.8 Published Updated

A use-after-free vulnerability in the Linux kernel's linkstation poweroff driver allows attackers to potentially execute arbitrary code or escalate privileges.

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-2026-64246?

CVE-2026-64246 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:

power: reset: linkstation-poweroff: fix use-after-free in the linkstation_poweroff_init()

Move of_node_put(dn) after the of_match_node() call, which still needs the node pointer. The node reference is correctly released after use.

Weakness: CWE-416

Which versions are affected by CVE-2026-64246?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2026-64246?

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-2026-64246 being exploited?

There is no known exploitation of CVE-2026-64246 in the wild and no public exploit code.

All Linux kernel vulnerabilities

Sources

Also known as BELL-CVE-2026-64246, DEBIAN-CVE-2026-64246, GHSA-m784-m9j8-378q, ROOT-OS-UBUNTU-2204-CVE-2026-64246, UBUNTU-CVE-2026-64246.

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