CVE-2026-98673 iio: adc: pac1934: check ACPI label duplication
A null pointer dereference in the PAC1934 ADC driver can cause a kernel crash when handling duplicate ACPI labels.
- 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-2026-98673?
CVE-2026-98673 is a vulnerability in Linux, published on 18 Oct 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:
iio: adc: pac1934: check ACPI label duplication
A label duplication failure currently reaches the terminating-byte write. Release the ACPI result and abort before accessing the missing label; earlier labels are managed by devres.
Detected by static analysis and reviewed with AI-assisted source auditing.
Which versions are affected by CVE-2026-98673?
How do I fix CVE-2026-98673?
Apply the vendor's patch.
Is CVE-2026-98673 being exploited?
There is no known exploitation of CVE-2026-98673 in the wild and no public exploit code.
Sources
Also known as BELL-CVE-2026-98673, DEBIAN-CVE-2026-98673, GHSA-256p-6hqh-vvmc, UBUNTU-CVE-2026-98673.