---
id: "CVE-2026-98956"
kind: "vulnerability"
aliases: ["CVE-2026-98956"]
title: "Linux kernel: ADAU1372 audio driver warns on sleepy powerdown GPIOs"
severity: "unknown"
cvss: null
epss: 0.00209
exploited: false
status: "open"
category: "runtime"
products: []
ecosystems: []
tags: ["audio", "linux-kernel", "runtime"]
not_affected_if: []
published_at: "2026-10-23T13:17:16+00:00"
first_seen_at: "2026-10-23T21:57:33+00:00"
updated_at: "2026-10-25T12:38:50+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-98956", "first_seen_at": "2026-10-23T21:57:33+00:00"}, {"source": "epss", "url": "https://api.first.org/data/v1/epss?cve=CVE-2026-98956", "first_seen_at": "2026-10-25T12:38:50+00:00"}]
---

# Linux kernel: ADAU1372 audio driver warns on sleepy powerdown GPIOs

In the Linux kernel's ADAU1372 audio codec driver, the powerdown GPIO was set with a call that emits a kernel warning when the GPIO expander can sleep, such as I2C-controlled expanders. The fix switches to the sleep-safe variant so the driver can power the chip off through such GPIOs.

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

## Timeline

- 2026-10-23T21:57:33+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-98956
- 2026-10-25T12:38:50+00:00 epss https://api.first.org/data/v1/epss?cve=CVE-2026-98956

## From the sources

In the Linux kernel, the following vulnerability has been resolved:

ASoC: adau1372: allow sleepy powerdown GPIOs

gpiod_set_value() emits a WARN when the GPIO provider indicates that it
can sleep, as is typical for I2C controlled GPIO expanders. Since the
powerdown GPIO is only manipulated in process context, use the _cansleep
variant instead. This lets the driver use sleepy GPIOs to power off the
chip.

---

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