Answer in brief
CVE-2026-31768 records a High severity (CVSS 7.8) vulnerability in iio: adc: ti-adc161s626: use DMA-safe memory for spi_read(). The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic), Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (generic), Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic), Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (generic), Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=4d671b71beefbfc145b971a11e0c3cabde94b673 <b3bb8faeca1a2ef7be95ee8a512b639f9ffce947 || >=4d671b71beefbfc145b971a11e0c3cabde94b673 <fa64aab25aba47296aa8d12bb4c88ec3fecb2054 || >=4d671b71beefbfc145b971a11e0c3cabde94b673 <67b3a91bdc48220bfb67155ab528121b9c822782 || >=4d671b71beefbfc145b971a11e0c3cabde94b673 <014c6d27878d3883f7bb065610768fd021de1a96 || >=4d671b71beefbfc145b971a11e0c3cabde94b673 <d2d031b0786ea66ab0577c9d2d71435068d32199 || >=4d671b71beefbfc145b971a11e0c3cabde94b673 <768461517a28d80fe81ea4d5d03a90cd184ea6ad | b3bb8faeca1a2ef7be95ee8a512b639f9ffce947, fa64aab25aba47296aa8d12bb4c88ec3fecb2054, 67b3a91bdc48220bfb67155ab528121b9c822782, 014c6d27878d3883f7bb065610768fd021de1a96, d2d031b0786ea66ab0577c9d2d71435068d32199, 768461517a28d80fe81ea4d5d03a90cd184ea6ad |
| Linux/Linuxgeneric | 4.9 | Not reported |
| Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFPgeneric | >=V3.1.6 <* | * |
| Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFPgeneric | >=V3.1.5 <* | * |
| Siemens/SIMATIC S7-1500 CPU 1518F-4 PN/DP MFPgeneric | >=V3.1.6 <* | * |
| Siemens/SIMATIC S7-1500 CPU 1518F-4 PN/DP MFPgeneric | >=V3.1.5 <* | * |
| Siemens/SIPLUS S7-1500 CPU 1518-4 PN/DP MFPgeneric | >=V3.1.6 <* | * |
| Siemens/SIPLUS S7-1500 CPU 1518-4 PN/DP MFPgeneric | >=V3.1.5 <* | * |
Published upstream
May 1, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Sep 8, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jul 14, 2026
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.
Quoted source text, attributed separately from HOL analysis.