PT-2026-36399 · Linux+2 · Linux+91

Published 2026-05-01 · Updated 2026-05-08 · CVE-2026-31764

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description An out-of-bounds access occurs in the st lsm6dsx hwfifo odr store() function when userspace writes to the buffer sampling frequency sysfs attribute. This function calls st lsm6dsx check odr(), which accesses the odr table array using the sensor->id index. Because the array contains only two entries, any sensor type other than the accelerometer or gyroscope triggers an out-of-bounds access.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Improper Validation of Array Index

Weakness Enumeration

CWE-129

Related Identifiers

CVE-2026-31764

Affected Products

Linux

Linux-Allwinner-5.19

Linux-Aws-5.0

Linux-Aws-5.11

Linux-Aws-5.13

Linux-Aws-5.19

Linux-Aws-5.3

Linux-Aws-5.8

Linux-Aws-6.14

Linux-Aws-6.2

Linux-Aws-6.5

Linux-Azure

Linux-Azure-5.11

Linux-Azure-5.13

Linux-Azure-5.19

Linux-Azure-5.3

Linux-Azure-5.8

Linux-Azure-6.11

Linux-Azure-6.2

Linux-Azure-6.5

Linux-Azure-Edge

Linux-Azure-Fde

Linux-Azure-Fde-5.19

Linux-Azure-Fde-6.2

Linux-Gcp

Linux-Gcp-5.11

Linux-Gcp-5.13

Linux-Gcp-5.19

Linux-Gcp-5.3

Linux-Gcp-5.8

Linux-Gcp-6.11

Linux-Gcp-6.14

Linux-Gcp-6.2

Linux-Gcp-6.5

Linux-Gke

Linux-Gke-4.15

Linux-Gkeop-5.15

Linux-Gke-5.4

Linux-Gkeop

Linux-Hwe

Linux-Hwe-5.11

Linux-Hwe-5.13

Linux-Hwe-5.19

Linux-Hwe-5.8

Linux-Hwe-6.11

Linux-Hwe-6.14

Linux-Hwe-6.2

Linux-Hwe-6.5

Linux-Hwe-Edge

Linux-Intel-5.13

Linux-Intel-Iot-Realtime

Linux-Lowlatency-Hwe-5.19

Linux-Lowlatency-Hwe-6.11

Linux-Lowlatency-Hwe-6.2

Linux-Lowlatency-Hwe-6.5

Linux-Nvidia

Linux-Nvidia-6.11

Linux-Nvidia-6.2

Linux-Nvidia-6.5

Linux-Oem

Linux-Oem-5.10

Linux-Oem-5.13

Linux-Oem-5.14

Linux-Oem-5.17

Linux-Oem-5.6

Linux-Oem-6.0

Linux-Oem-6.1

Linux-Oem-6.11

Linux-Oem-6.14

Linux-Oem-6.5

Linux-Oem-6.8

Linux-Oracle-5.0

Linux-Oracle-5.11

Linux-Oracle-5.13

Linux-Oracle-5.3

Linux-Oracle-5.8

Linux-Oracle-6.14

Linux-Oracle-6.5

Linux-Raspi-Realtime

Linux-Raspi2

Linux-Realtime

Linux-Realtime-6.14

Linux-Riscv

Linux-Riscv-5.11

Linux-Riscv-5.19

Linux-Riscv-5.8

Linux-Riscv-6.14

Linux-Riscv-6.5

Linux-Starfive-5.19

Linux-Starfive-6.2

Linux-Starfive-6.5

Linux Kernel

References · 10

• https://git.kernel.org/stable/c/679c04c10d65d32a3f269e696b22912ff0a001b9 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2026-31764 · Security Note
• https://git.kernel.org/stable/c/3225a81e8d264442b14c7c1bc965ebafa3c0ee01 · Patch
• https://ubuntu.com/security/CVE-2026-31764 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-31764 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2026-31764 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-31764 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2026-31764 · Security Note
• https://git.kernel.org/linus/679c04c10d65d32a3f269e696b22912ff0a001b9 · Note
• https://t.me/cveNotify/162762 · Telegram Post