SB2026050282 - Out-of-bounds read in Linux kernel imu st_lsm6dsx driver

Description

This security bulletin contains information about 1 vulnerability.

1) Out-of-bounds read (CVE-ID: CVE-2026-31764)

CWE-ID: CWE-125 - Out-of-bounds read

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to an out-of-bounds read in the st_lsm6dsx_hwfifo_odr_store() function when processing writes to the buffer sampling frequency sysfs attribute. A local user can write a crafted value to the sysfs attribute for a non-accelerometer and non-gyroscope sensor type to cause a denial of service.

The issue is triggered because the odr_table array is accessed using sensor->id even though the table contains only two entries.

Remediation

Install update from vendor's website.

References

• https://git.kernel.org/stable/c/3225a81e8d264442b14c7c1bc965ebafa3c0ee01
• https://git.kernel.org/stable/c/679c04c10d65d32a3f269e696b22912ff0a001b9