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

iio: imu: st_lsm6dsx: fix iio_chan_spec for sensors without event detection

The st_lsm6dsx_acc_channels array of struct iio_chan_spec has a non-NULL
event_spec field, indicating support for IIO events. However, event
detection is not supported for all sensors, and if userspace tries to
configure accelerometer wakeup events on a sensor device that does not
support them (e.g. LSM6DS0), st_lsm6dsx_write_event() dereferences a NULL
pointer when trying to write to the wakeup register.
Define an additional struct iio_chan_spec array whose members have a NULL
event_spec field, and use this array instead of st_lsm6dsx_acc_channels for
sensors without event detection capability.
Published: 2026-02-04
Score: n/a
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
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Remediation

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Advisories
Source ID Title
Debian DSA Debian DSA DSA-6126-1 linux security update
Ubuntu USN Ubuntu USN USN-8278-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-8289-1 Linux kernel (NVIDIA) vulnerabilities
Ubuntu USN Ubuntu USN USN-8296-1 Linux kernel (FIPS) vulnerabilities
Ubuntu USN Ubuntu USN USN-8296-2 Linux kernel (NVIDIA Tegra) vulnerabilities
Ubuntu USN Ubuntu USN USN-8278-2 Linux kernel (Azure) vulnerabilities
History

Thu, 05 Feb 2026 12:15:00 +0000


Wed, 04 Feb 2026 16:30:00 +0000

Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: iio: imu: st_lsm6dsx: fix iio_chan_spec for sensors without event detection The st_lsm6dsx_acc_channels array of struct iio_chan_spec has a non-NULL event_spec field, indicating support for IIO events. However, event detection is not supported for all sensors, and if userspace tries to configure accelerometer wakeup events on a sensor device that does not support them (e.g. LSM6DS0), st_lsm6dsx_write_event() dereferences a NULL pointer when trying to write to the wakeup register. Define an additional struct iio_chan_spec array whose members have a NULL event_spec field, and use this array instead of st_lsm6dsx_acc_channels for sensors without event detection capability.
Title iio: imu: st_lsm6dsx: fix iio_chan_spec for sensors without event detection
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References

Subscriptions

Linux Linux Kernel
cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-05-11T21:56:33.537Z

Reserved: 2026-01-31T11:36:51.192Z

Link: CVE-2025-71198

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Deferred

Published: 2026-02-04T17:16:11.743

Modified: 2026-04-15T00:35:42.020

Link: CVE-2025-71198

cve-icon Redhat

Severity :

Publid Date: 2026-02-04T00:00:00Z

Links: CVE-2025-71198 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses

No weakness.