CVE-2026-97455 ACPICA: Fix use-after-free in acpi_ds_terminate_control_method()
A use-after-free vulnerability in the Linux kernel's ACPICA component allows attackers to potentially execute arbitrary code or escalate privileges.
- 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-2026-97455?
CVE-2026-97455 is a high-severity use after free vulnerability in Linux, published on 24 Sep 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:
ACPICA: Fix use-after-free in acpi_ds_terminate_control_method()
Fix use-after-free issue in acpi_ds_terminate_control_method() by clearing references to method locals and arguments.
Which versions are affected by CVE-2026-97455?
How do I fix CVE-2026-97455?
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-2026-97455 being exploited?
There is no known exploitation of CVE-2026-97455 in the wild and no public exploit code.
Sources
Also known as AZL-103808, BELL-CVE-2026-97455, DEBIAN-CVE-2026-97455, GHSA-x2rf-q423-6x9j, UBUNTU-CVE-2026-97455.