FKIE_CVE-2026-80695

Vulnerability from fkie_nvd - Published: 2026-08-28 08:16 - Updated: 2026-08-28 08:16
Severity
Summary
In the Linux kernel, the following vulnerability has been resolved: hwmon: (sht3x) Fix unaligned accesses Sashiko reports: In sht3x_update_client(), the 16-bit temperature and humidity values are extracted from a stack-allocated byte array using be16_to_cpup(). The pointers passed to this function are calculated as buf and buf + 3. Since the difference between the two pointers is an odd number of bytes, at least one of them is guaranteed to be at an unaligned offset. This will trigger an alignment fault on strict-alignment architectures such as ARMv5 or SPARC, resulting in a kernel panic. Fix the problem by using get_unaligned_be16() instead of be16_to_cpup(), and put_unaligned_be16() instead of cpu_to_be16().
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/1fb41650bc3e14d2a5ddb4bb25e96811e5afe881
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/81529add4a2e3cca9240e0e2342973d62f88f02e
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c498adfd4c3e85306ccdc19b76e639bfc215f0e7
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f46d5ab43a572b84773015a76966f5da56fc1748
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/hwmon/sht3x.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "81529add4a2e3cca9240e0e2342973d62f88f02e",
              "status": "affected",
              "version": "7c84f7f80d6fcea36246b793d06c3555ca53ddcd",
              "versionType": "git"
            },
            {
              "lessThan": "c498adfd4c3e85306ccdc19b76e639bfc215f0e7",
              "status": "affected",
              "version": "7c84f7f80d6fcea36246b793d06c3555ca53ddcd",
              "versionType": "git"
            },
            {
              "lessThan": "1fb41650bc3e14d2a5ddb4bb25e96811e5afe881",
              "status": "affected",
              "version": "7c84f7f80d6fcea36246b793d06c3555ca53ddcd",
              "versionType": "git"
            },
            {
              "lessThan": "f46d5ab43a572b84773015a76966f5da56fc1748",
              "status": "affected",
              "version": "7c84f7f80d6fcea36246b793d06c3555ca53ddcd",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/hwmon/sht3x.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.8"
            },
            {
              "lessThan": "4.8",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.103",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.44",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.1.*",
              "status": "unaffected",
              "version": "7.1.8",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nhwmon: (sht3x) Fix unaligned accesses\n\nSashiko reports:\n\nIn sht3x_update_client(), the 16-bit temperature and humidity values are\nextracted from a stack-allocated byte array using be16_to_cpup(). The\npointers passed to this function are calculated as buf and buf + 3. Since\nthe difference between the two pointers is an odd number of bytes, at\nleast one of them is guaranteed to be at an unaligned offset.\n\nThis will trigger an alignment fault on strict-alignment architectures\nsuch as ARMv5 or SPARC, resulting in a kernel panic.\n\nFix the problem by using get_unaligned_be16() instead of be16_to_cpup(),\nand put_unaligned_be16() instead of cpu_to_be16()."
    }
  ],
  "id": "CVE-2026-80695",
  "lastModified": "2026-08-28T08:16:54.983",
  "metrics": {},
  "published": "2026-08-28T08:16:54.983",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/1fb41650bc3e14d2a5ddb4bb25e96811e5afe881"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/81529add4a2e3cca9240e0e2342973d62f88f02e"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/c498adfd4c3e85306ccdc19b76e639bfc215f0e7"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/f46d5ab43a572b84773015a76966f5da56fc1748"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}



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