CVE-2026-31768 (GCVE-0-2026-31768)
Vulnerability from cvelistv5
Published
2026-05-01 14:14
Modified
2026-05-03 05:45
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
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.
References
Impacted products
Vendor Product Version
Linux Linux Version: 4d671b71beefbfc145b971a11e0c3cabde94b673
Version: 4d671b71beefbfc145b971a11e0c3cabde94b673
Version: 4d671b71beefbfc145b971a11e0c3cabde94b673
Version: 4d671b71beefbfc145b971a11e0c3cabde94b673
Version: 4d671b71beefbfc145b971a11e0c3cabde94b673
Version: 4d671b71beefbfc145b971a11e0c3cabde94b673
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{
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          "product": "Linux",
          "programFiles": [
            "drivers/iio/adc/ti-adc161s626.c"
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          "vendor": "Linux",
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              "version": "0",
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              "status": "unaffected",
              "version": "6.12.81",
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            {
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              "status": "unaffected",
              "version": "6.18.22",
              "versionType": "semver"
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              "version": "6.19.12",
              "versionType": "semver"
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              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.0",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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              "negate": false,
              "operator": "OR"
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\niio: adc: ti-adc161s626: use DMA-safe memory for spi_read()\n\nAdd a DMA-safe buffer and use it for spi_read() instead of a stack\nmemory. All SPI buffers must be DMA-safe.\n\nSince we only need up to 3 bytes, we just use a u8[] instead of __be16\nand __be32 and change the conversion functions appropriately."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          }
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      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-03T05:45:49.425Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/b3bb8faeca1a2ef7be95ee8a512b639f9ffce947"
        },
        {
          "url": "https://git.kernel.org/stable/c/fa64aab25aba47296aa8d12bb4c88ec3fecb2054"
        },
        {
          "url": "https://git.kernel.org/stable/c/67b3a91bdc48220bfb67155ab528121b9c822782"
        },
        {
          "url": "https://git.kernel.org/stable/c/014c6d27878d3883f7bb065610768fd021de1a96"
        },
        {
          "url": "https://git.kernel.org/stable/c/d2d031b0786ea66ab0577c9d2d71435068d32199"
        },
        {
          "url": "https://git.kernel.org/stable/c/768461517a28d80fe81ea4d5d03a90cd184ea6ad"
        }
      ],
      "title": "iio: adc: ti-adc161s626: use DMA-safe memory for spi_read()",
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  "cveMetadata": {
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    "assignerShortName": "Linux",
    "cveId": "CVE-2026-31768",
    "datePublished": "2026-05-01T14:14:57.971Z",
    "dateReserved": "2026-03-09T15:48:24.140Z",
    "dateUpdated": "2026-05-03T05:45:49.425Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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