CVE-2026-97448 ACPICA: Add validation for node in acpi_ns_build_normalized_path()
A use-after-free vulnerability in the Linux kernel's ACPICA component allows attackers to potentially execute 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-2026-97448?
CVE-2026-97448 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: Add validation for node in acpi_ns_build_normalized_path()
Add validation for node in acpi_ns_build_normalized_path() to prevent use-after-free vulnerabilities.
Which versions are affected by CVE-2026-97448?
How do I fix CVE-2026-97448?
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-2026-97448 being exploited?
There is no known exploitation of CVE-2026-97448 in the wild and no public exploit code.
Sources
Also known as AZL-103673, BELL-CVE-2026-97448, DEBIAN-CVE-2026-97448, GHSA-8h8q-r4gh-jcq5, UBUNTU-CVE-2026-97448.