CVE-2026-31768 Details
Description
In the Linux kernel, the following vulnerability has been resolved: iio: adc: ti-adc161s626: use DMA-safe memory for spi_read() Add a DMA-safe buffer and use it for spi_read() instead of a stack memory. All SPI buffers must be DMA-safe. Since we only need up to 3 bytes, we just use a u8[] instead of __be16 and __be32 and change the conversion functions appropriately.
A vulnerability in the Linux kernel's handling of SPI communication for the TI ADC161S626 analog-to-digital converter has been addressed. The issue was that the driver used stack memory for SPI reads, which is not safe for Direct Memory Access (DMA) operations. This vulnerability affected the IIO ADC driver for the TI ADC161S626, which is used for Texas Instruments' 1-channel differential ADCs. The vulnerability has been resolved by modifying the driver to use a DMA-safe buffer for SPI reads, ensuring that all SPI buffers are compatible with DMA requirements.
Users can upgrade to the latest version of the Linux kernel where this vulnerability has been fixed. The specific commit that addresses this issue is available in the Linux stable tree.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
No SSVC data is available for this CVE.
References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://cert-portal.siemens.com/productcert/html/ssa-019113.html | siemens-SADP | |
| https://cert-portal.siemens.com/productcert/html/ssa-082556.html | siemens-SADP | |
| https://git.kernel.org/stable/c/014c6d27878d3883f7bb065610768fd021de1a96 | kernel.org | Patch |
| https://git.kernel.org/stable/c/67b3a91bdc48220bfb67155ab528121b9c822782 | kernel.org | Patch |
| https://git.kernel.org/stable/c/768461517a28d80fe81ea4d5d03a90cd184ea6ad | kernel.org | Patch |
| https://git.kernel.org/stable/c/b3bb8faeca1a2ef7be95ee8a512b639f9ffce947 | kernel.org | Patch |
| https://git.kernel.org/stable/c/d2d031b0786ea66ab0577c9d2d71435068d32199 | kernel.org | Patch |
| https://git.kernel.org/stable/c/fa64aab25aba47296aa8d12bb4c88ec3fecb2054 | kernel.org | Patch |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| NVD-CWE-noinfo | Insufficient Information to Classify Weakness | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| linux linux kernel | >= 4.9, < 6.1.168 >= 6.2, < 6.6.134 >= 6.7, < 6.12.81 >= 6.13, < 6.18.22 >= 6.19, < 6.19.12 7.0 rc1 7.0 rc2 7.0 rc3 7.0 rc4 7.0 rc5 7.0 rc6 |
CPE
Remediation
| |
Change History
5 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 14, 2026 | CVE Modified | siemens-SADP |
| Jun 17, 2026 | CVE Modified | kernel.org |
| May 11, 2026 | Initial Analysis | [email protected] |
| May 3, 2026 | CVE Modified | kernel.org |
| May 1, 2026 | New CVE Received | kernel.org |