PT-2026-36403 · Linux · Linux Kernel

Published 2026-05-01 · Updated 2026-05-06 · CVE-2026-31768

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 issue exists in the ti-adc161s626 component of the Industrial I/O (IIO) ADC subsystem where spi read() utilized stack memory instead of DMA-safe memory. Direct Memory Access (DMA) is a feature that allows hardware subsystems to access main system memory independently of the central processing unit. All SPI buffers are required to be DMA-safe to ensure system stability and correctness.

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

Related Identifiers

CVE-2026-31768

ECHO-74B6-87D7-BB2F

Affected Products

Linux Kernel

References · 15

• https://security-tracker.debian.org/tracker/CVE-2026-31768 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-31768 · Security Note
• https://cve.org/CVERecord?id=CVE-2026-31768 · Security Note
• https://git.kernel.org/stable/c/014c6d27878d3883f7bb065610768fd021de1a96 · Patch
• https://git.kernel.org/stable/c/b3bb8faeca1a2ef7be95ee8a512b639f9ffce947 · Patch
• https://git.kernel.org/stable/c/67b3a91bdc48220bfb67155ab528121b9c822782 · Patch
• https://git.kernel.org/stable/c/d2d031b0786ea66ab0577c9d2d71435068d32199 · Patch
• https://ubuntu.com/security/CVE-2026-31768 · Vendor Advisory
• https://git.kernel.org/stable/c/fa64aab25aba47296aa8d12bb4c88ec3fecb2054 · Patch
• https://osv.dev/vulnerability/BELL-CVE-2026-31768 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-31768 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-31768 · Vendor Advisory
• https://git.kernel.org/stable/c/768461517a28d80fe81ea4d5d03a90cd184ea6ad · Patch
• https://git.kernel.org/linus/768461517a28d80fe81ea4d5d03a90cd184ea6ad · Note
• https://docs.bell-sw.com/security/cves/CVE-2026-31768 · Note