CVE-2026-98678

Full vulnerability record from the local CVENow database.

Description

In the Linux kernel, the following vulnerability has been resolved: iio: adc: ad4030: fix invalid oversampling_ratio validation In ad4030_set_avg_frame_len(), the logarithm is calculated before input validation. Passing zero or negative values leads to an undefined result from ilog2(). Validate that the input is strictly positive prior to computing its logarithm.

Severity

Not scored

CVSS score

Not available

Vulnerability status

Received

Source identifier

416baaa9-dc9f-4396-8d5f-8c081fb06d67

Published

2026-10-18 16:17:21.160000

Last modified

2026-10-19 10:19:32.267000

View original CVE JSON

{
  "id": "CVE-2026-98678",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2026-10-18T16:17:21.160",
  "lastModified": "2026-10-19T10:19:32.267",
  "vulnStatus": "Received",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\niio: adc: ad4030: fix invalid oversampling_ratio validation\n\nIn ad4030_set_avg_frame_len(), the logarithm is calculated before input\nvalidation. Passing zero or negative values leads to an undefined result\nfrom ilog2().\n\nValidate that the input is strictly positive prior to computing its\nlogarithm."
    }
  ],
  "affected": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "affectedData": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "programFiles": [
            "drivers/iio/adc/ad4030.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "versions": [
            {
              "version": "949abd1ca5a4342d9fb8c774035222e65dd1cfe4",
              "lessThan": "6b0cc4e32599f59c994a60743f53fc72cb2979f4",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "949abd1ca5a4342d9fb8c774035222e65dd1cfe4",
              "lessThan": "6ca6dcbaa68c5e6dc4df171a32c5822e1a4c66c1",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "949abd1ca5a4342d9fb8c774035222e65dd1cfe4",
              "lessThan": "d615210564205993e8f0e7ccb57cc2e66b7d5706",
              "versionType": "git",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "programFiles": [
            "drivers/iio/adc/ad4030.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "versions": [
            {
              "version": "6.15",
              "status": "affected"
            },
            {
              "version": "0",
              "lessThan": "6.15",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.18.56",
              "lessThanOrEqual": "6.18.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "7.2.10",
              "lessThanOrEqual": "7.2.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "7.3",
              "lessThanOrEqual": "*",
              "versionType": "original_commit_for_fix",
              "status": "unaffected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {},
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/6b0cc4e32599f59c994a60743f53fc72cb2979f4",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/6ca6dcbaa68c5e6dc4df171a32c5822e1a4c66c1",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/d615210564205993e8f0e7ccb57cc2e66b7d5706",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ]
}