FKIE_CVE-2026-63931

Vulnerability from fkie_nvd - Published: 2026-07-19 16:17 - Updated: 2026-07-19 16:17
Severity
Summary
In the Linux kernel, the following vulnerability has been resolved: iio: chemical: scd30: fix division by zero in write_raw Add a zero check for val2 before using it as a divisor when setting the sampling frequency. A user writing a zero fractional part to the sampling_frequency sysfs attribute triggers a division by zero in the kernel.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2c50c017df97bfb425038efdfb8514c7bcd08564
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/4748bce423a363bb8a85a624faeb8f54fe331611
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/5aba4f94b225617a55fed442a70329b2ee19c0a5
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/5e4d34092a5ebfbc3a45a180c76ecb1cdbbedd53
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/6308b812acdcac38cbfe1af0b1524c3375f408a5
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c7a740bf75554b051fabb17596ca6e483d6e6d90
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d98c2e69aab905d1b19a69ffe584efa46a9efd42
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e85bc501947f5ae16dd9adc01162b76d55ab7962
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/iio/chemical/scd30_core.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "4748bce423a363bb8a85a624faeb8f54fe331611",
              "status": "affected",
              "version": "64b3d8b1b0f5c16c19045785e4da8391ae35ec99",
              "versionType": "git"
            },
            {
              "lessThan": "6308b812acdcac38cbfe1af0b1524c3375f408a5",
              "status": "affected",
              "version": "64b3d8b1b0f5c16c19045785e4da8391ae35ec99",
              "versionType": "git"
            },
            {
              "lessThan": "c7a740bf75554b051fabb17596ca6e483d6e6d90",
              "status": "affected",
              "version": "64b3d8b1b0f5c16c19045785e4da8391ae35ec99",
              "versionType": "git"
            },
            {
              "lessThan": "e85bc501947f5ae16dd9adc01162b76d55ab7962",
              "status": "affected",
              "version": "64b3d8b1b0f5c16c19045785e4da8391ae35ec99",
              "versionType": "git"
            },
            {
              "lessThan": "d98c2e69aab905d1b19a69ffe584efa46a9efd42",
              "status": "affected",
              "version": "64b3d8b1b0f5c16c19045785e4da8391ae35ec99",
              "versionType": "git"
            },
            {
              "lessThan": "5e4d34092a5ebfbc3a45a180c76ecb1cdbbedd53",
              "status": "affected",
              "version": "64b3d8b1b0f5c16c19045785e4da8391ae35ec99",
              "versionType": "git"
            },
            {
              "lessThan": "2c50c017df97bfb425038efdfb8514c7bcd08564",
              "status": "affected",
              "version": "64b3d8b1b0f5c16c19045785e4da8391ae35ec99",
              "versionType": "git"
            },
            {
              "lessThan": "5aba4f94b225617a55fed442a70329b2ee19c0a5",
              "status": "affected",
              "version": "64b3d8b1b0f5c16c19045785e4da8391ae35ec99",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/iio/chemical/scd30_core.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.9"
            },
            {
              "lessThan": "5.9",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.259",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.210",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.176",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.143",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.93",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.35",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.0.*",
              "status": "unaffected",
              "version": "7.0.12",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.1",
              "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\niio: chemical: scd30: fix division by zero in write_raw\n\nAdd a zero check for val2 before using it as a divisor when setting the\nsampling frequency. A user writing a zero fractional part to the\nsampling_frequency sysfs attribute triggers a division by zero in the\nkernel."
    }
  ],
  "id": "CVE-2026-63931",
  "lastModified": "2026-07-19T16:17:11.507",
  "metrics": {},
  "published": "2026-07-19T16:17:11.507",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/2c50c017df97bfb425038efdfb8514c7bcd08564"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/4748bce423a363bb8a85a624faeb8f54fe331611"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/5aba4f94b225617a55fed442a70329b2ee19c0a5"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/5e4d34092a5ebfbc3a45a180c76ecb1cdbbedd53"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/6308b812acdcac38cbfe1af0b1524c3375f408a5"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/c7a740bf75554b051fabb17596ca6e483d6e6d90"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/d98c2e69aab905d1b19a69ffe584efa46a9efd42"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/e85bc501947f5ae16dd9adc01162b76d55ab7962"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.