CVE-2026-31627 (GCVE-0-2026-31627)
Vulnerability from cvelistv5
Published
2026-04-24 14:42
Modified
2026-04-27 14:04
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: i2c: s3c24xx: check the size of the SMBUS message before using it The first byte of an i2c SMBUS message is the size, and it should be verified to ensure that it is in the range of 0..I2C_SMBUS_BLOCK_MAX before processing it. This is the same logic that was added in commit a6e04f05ce0b ("i2c: tegra: check msg length in SMBUS block read") to the i2c tegra driver.
References
Impacted products
Vendor Product Version
Linux Linux Version: 85747311ecb6167c989093c64a13807366fdd3a9
Version: 85747311ecb6167c989093c64a13807366fdd3a9
Version: 85747311ecb6167c989093c64a13807366fdd3a9
Version: 85747311ecb6167c989093c64a13807366fdd3a9
Version: 85747311ecb6167c989093c64a13807366fdd3a9
Version: 85747311ecb6167c989093c64a13807366fdd3a9
 Create a notification for this product.
Show details on NVD website

To clipboard 

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/i2c/busses/i2c-s3c2410.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "fa00738ab30b07db1a43b9c85fc56b8cc3b7d197",
              "status": "affected",
              "version": "85747311ecb6167c989093c64a13807366fdd3a9",
              "versionType": "git"
            },
            {
              "lessThan": "d87d5620125a03b1eadbd5df39748215d3db7ddb",
              "status": "affected",
              "version": "85747311ecb6167c989093c64a13807366fdd3a9",
              "versionType": "git"
            },
            {
              "lessThan": "377fae22a137b6b89f3f32399a58c52cf2325416",
              "status": "affected",
              "version": "85747311ecb6167c989093c64a13807366fdd3a9",
              "versionType": "git"
            },
            {
              "lessThan": "71b3c316b22c555d2769126a92b1244b15a9750d",
              "status": "affected",
              "version": "85747311ecb6167c989093c64a13807366fdd3a9",
              "versionType": "git"
            },
            {
              "lessThan": "aaaaec39ddbcd06770dca7f1adebc3b1242ebe7b",
              "status": "affected",
              "version": "85747311ecb6167c989093c64a13807366fdd3a9",
              "versionType": "git"
            },
            {
              "lessThan": "c0128c7157d639a931353ea344fb44aad6d6e17a",
              "status": "affected",
              "version": "85747311ecb6167c989093c64a13807366fdd3a9",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/i2c/busses/i2c-s3c2410.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "3.10"
            },
            {
              "lessThan": "3.10",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.136",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.83",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.24",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.19.*",
              "status": "unaffected",
              "version": "6.19.14",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.0.*",
              "status": "unaffected",
              "version": "7.0.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.1-rc1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.136",
                  "versionStartIncluding": "3.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.83",
                  "versionStartIncluding": "3.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.24",
                  "versionStartIncluding": "3.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.19.14",
                  "versionStartIncluding": "3.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.0.1",
                  "versionStartIncluding": "3.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.1-rc1",
                  "versionStartIncluding": "3.10",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ni2c: s3c24xx: check the size of the SMBUS message before using it\n\nThe first byte of an i2c SMBUS message is the size, and it should be\nverified to ensure that it is in the range of 0..I2C_SMBUS_BLOCK_MAX\nbefore processing it.\n\nThis is the same logic that was added in commit a6e04f05ce0b (\"i2c:\ntegra: check msg length in SMBUS block read\") to the i2c tegra driver."
        }
      ],
      "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"
          }
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-04-27T14:04:28.890Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/fa00738ab30b07db1a43b9c85fc56b8cc3b7d197"
        },
        {
          "url": "https://git.kernel.org/stable/c/d87d5620125a03b1eadbd5df39748215d3db7ddb"
        },
        {
          "url": "https://git.kernel.org/stable/c/377fae22a137b6b89f3f32399a58c52cf2325416"
        },
        {
          "url": "https://git.kernel.org/stable/c/71b3c316b22c555d2769126a92b1244b15a9750d"
        },
        {
          "url": "https://git.kernel.org/stable/c/aaaaec39ddbcd06770dca7f1adebc3b1242ebe7b"
        },
        {
          "url": "https://git.kernel.org/stable/c/c0128c7157d639a931353ea344fb44aad6d6e17a"
        }
      ],
      "title": "i2c: s3c24xx: check the size of the SMBUS message before using it",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-31627",
    "datePublished": "2026-04-24T14:42:48.342Z",
    "dateReserved": "2026-03-09T15:48:24.124Z",
    "dateUpdated": "2026-04-27T14:04:28.890Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.