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Linux kernel 6.6.157.1-1 may mishandle sleepable power‑off pins
published 12 days ago
Summary
The Linux kernel version 6.6.157.1-1 includes a fix for a driver that could generate warnings when it tries to control power‑down pins that need a short pause (sleep) to work correctly. While this does not expose data or allow remote access, it could cause instability on systems that use those specific pins. Apply the latest kernel updates to ensure the driver uses the proper method and avoids the warning.
What to do
The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.
Affected software
| Ecosystem | Vendor | Product | Affected versions |
|---|---|---|---|
| Azure Linux:3 | azure | kernel | <= 6.6.157.1-1 |
Original advisory text
CVE-2026-98956 affecting package kernel 6.6.157.1-1
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.
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.
References
Timeline
Published23 Oct 2026
Updated24 Oct 2026
First seen24 Oct 2026
Sources
AZL-110768 · OSV
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