---
id: "CVE-2026-98673"
kind: "vulnerability"
aliases: ["CVE-2026-98673"]
title: "Linux kernel: missing check in pac1934 ACPI label handling"
severity: "unknown"
cvss: null
epss: null
exploited: false
status: "open"
category: "infrastructure"
products: []
ecosystems: []
tags: ["iio", "infrastructure", "kernel", "linux"]
not_affected_if: []
published_at: "2026-10-18T16:17:20+00:00"
first_seen_at: "2026-10-23T21:57:16+00:00"
updated_at: "2026-10-25T05:19:20+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-98673", "first_seen_at": "2026-10-23T21:57:16+00:00"}]
---

# Linux kernel: missing check in pac1934 ACPI label handling

The Linux kernel's IIO driver for the PAC1934 power monitor did not check for a failed ACPI label duplication before writing a terminating byte. The sources describe a fix that releases the ACPI result and aborts before touching the missing label.

_Summary, check and fix written by a model from the sources; labelled as such._

## Timeline

- 2026-10-23T21:57:16+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-98673

## From the sources

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.

---

_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_