EUVD-2026-26577CVSS VectorNVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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7DescriptionNVD
In the Linux kernel, the following vulnerability has been resolved:
iio: imu: st_lsm6dsx: Set buffer sampling frequency for accelerometer only
The st_lsm6dsx_hwfifo_odr_store() function, which is called when userspace writes the buffer sampling frequency sysfs attribute, calls st_lsm6dsx_check_odr(), which accesses the odr_table array at index sensor->id; since this array is only 2 entries long, an access for any sensor type other than accelerometer or gyroscope is an out-of-bounds access.
The motivation for being able to set a buffer frequency different from the sensor sampling frequency is to support use cases that need accurate event detection (which requires a high sampling frequency) while retrieving sensor data at low frequency. Since all the supported event types are generated from acceleration data only, do not create the buffer sampling frequency attribute for sensor types other than the accelerometer.
AnalysisAI
Out-of-bounds array access in the st_lsm6dsx IMU driver allows local authenticated users with low privileges to achieve high-impact code execution, data disclosure, or denial of service. The vulnerability exists in the buffer sampling frequency sysfs handler, which fails to validate sensor type before indexing a 2-entry array with sensor IDs beyond accelerometer and gyroscope. …
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RemediationAI
Within 24 hours: Inventory systems running Linux kernels prior to 6.19.12 or 7.0 with st_lsm6dsx driver enabled and identify which allow non-root sysfs writes to sensor attributes. Within 7 days: Apply vendor-released patch to Linux kernel 6.19.12 or 7.0 or later on all affected systems; restrict sysfs write permissions to privileged users on interim systems via file permissions. …
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