Vulnerability-Lookup

FKIE_CVE-2026-31627

Vulnerability from fkie_nvd - Published: 2026-04-24 15:16 - Updated: 2026-04-24 17:51

Severity ?

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

	URL	Tags
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/377fae22a137b6b89f3f32399a58c52cf2325416
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/71b3c316b22c555d2769126a92b1244b15a9750d
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/aaaaec39ddbcd06770dca7f1adebc3b1242ebe7b
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/d87d5620125a03b1eadbd5df39748215d3db7ddb

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "cveTags": [],
  "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."
    }
  ],
  "id": "CVE-2026-31627",
  "lastModified": "2026-04-24T17:51:40.810",
  "metrics": {},
  "published": "2026-04-24T15:16:42.003",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/377fae22a137b6b89f3f32399a58c52cf2325416"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/71b3c316b22c555d2769126a92b1244b15a9750d"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/aaaaec39ddbcd06770dca7f1adebc3b1242ebe7b"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/d87d5620125a03b1eadbd5df39748215d3db7ddb"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}

CVE-2026-31627 (GCVE-0-2026-31627)

Vulnerability from cvelistv5 – Published: 2026-04-24 14:42 – Updated: 2026-04-25 05:48

Title

i2c: s3c24xx: check the size of the SMBUS message before using it

Summary

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/d87d5620125a03b1e…
	https://git.kernel.org/stable/c/377fae22a137b6b89…
	https://git.kernel.org/stable/c/71b3c316b22c555d2…
	https://git.kernel.org/stable/c/aaaaec39ddbcd0677…

Impacted products

Vendor

Product

Version

Linux

Affected: 85747311ecb6167c989093c64a13807366fdd3a9 , < d87d5620125a03b1eadbd5df39748215d3db7ddb (git)
Affected: 85747311ecb6167c989093c64a13807366fdd3a9 , < 377fae22a137b6b89f3f32399a58c52cf2325416 (git)
Affected: 85747311ecb6167c989093c64a13807366fdd3a9 , < 71b3c316b22c555d2769126a92b1244b15a9750d (git)
Affected: 85747311ecb6167c989093c64a13807366fdd3a9 , < aaaaec39ddbcd06770dca7f1adebc3b1242ebe7b (git)

Linux

Affected: 3.10
Unaffected: 0 , < 3.10 (semver)
Unaffected: 6.12.83 , ≤ 6.12.* (semver)
Unaffected: 6.18.24 , ≤ 6.18.* (semver)
Unaffected: 6.19.14 , ≤ 6.19.* (semver)
Unaffected: 7.0.1 , ≤ 7.0.* (semver)

Show details on NVD website

JSON

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": "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"
            }
          ]
        },
        {
          "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": "6.12.*",
              "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"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "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
                }
              ],
              "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."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-04-25T05:48:26.443Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "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"
        }
      ],
      "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": "2026-04-25T05:48:26.443Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date

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.

Action not permitted

FKIE_CVE-2026-31627

CVE-2026-31627 (GCVE-0-2026-31627)

Tags

Sightings

Nomenclature