CVE-2026-68225 (GCVE-0-2026-68225)
Vulnerability from cvelistv5
Published
2026-08-10 12:00
Modified
2026-08-17 05:01
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: media: i2c: alvium: fix critical pointer access in alvium_ctrl_init The current implementation of alvium_ctrl_init creates several controls in function alvium_ctrl_init and uses the returned pointer without check. That can cause write access over NULL-pointer for several controls. The reworked code checks the pointers before adding flags.
References
Impacted products
Vendor Product Version
Linux Linux Version: 0a7af872915ee34668edf7e4018648a226d9e7f9
Version: 0a7af872915ee34668edf7e4018648a226d9e7f9
Version: 0a7af872915ee34668edf7e4018648a226d9e7f9
Version: 0a7af872915ee34668edf7e4018648a226d9e7f9
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/media/i2c/alvium-csi2.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "4bacfda44d36f165f6cb57bea408912886400ffa",
              "status": "affected",
              "version": "0a7af872915ee34668edf7e4018648a226d9e7f9",
              "versionType": "git"
            },
            {
              "lessThan": "7337c88205ed0ffc654f40266be0d3c3eb15fb29",
              "status": "affected",
              "version": "0a7af872915ee34668edf7e4018648a226d9e7f9",
              "versionType": "git"
            },
            {
              "lessThan": "eb2f934646aefb06314cecd1deb020794829b207",
              "status": "affected",
              "version": "0a7af872915ee34668edf7e4018648a226d9e7f9",
              "versionType": "git"
            },
            {
              "lessThan": "4f6f28ff24709710c08557c127b3e4c3fb1b4159",
              "status": "affected",
              "version": "0a7af872915ee34668edf7e4018648a226d9e7f9",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/media/i2c/alvium-csi2.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.8"
            },
            {
              "lessThan": "6.8",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.101",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.42",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.1.*",
              "status": "unaffected",
              "version": "7.1.6",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.101",
                  "versionStartIncluding": "6.8",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.42",
                  "versionStartIncluding": "6.8",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.1.6",
                  "versionStartIncluding": "6.8",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2",
                  "versionStartIncluding": "6.8",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: i2c: alvium: fix critical pointer access in alvium_ctrl_init\n\nThe current implementation of alvium_ctrl_init creates several controls in\nfunction alvium_ctrl_init and uses the returned pointer without check. That\ncan cause write access over NULL-pointer for several controls. The reworked\ncode checks the pointers before adding flags."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-17T05:01:13.016Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/4bacfda44d36f165f6cb57bea408912886400ffa"
        },
        {
          "url": "https://git.kernel.org/stable/c/7337c88205ed0ffc654f40266be0d3c3eb15fb29"
        },
        {
          "url": "https://git.kernel.org/stable/c/eb2f934646aefb06314cecd1deb020794829b207"
        },
        {
          "url": "https://git.kernel.org/stable/c/4f6f28ff24709710c08557c127b3e4c3fb1b4159"
        }
      ],
      "title": "media: i2c: alvium: fix critical pointer access in alvium_ctrl_init",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-68225",
    "datePublished": "2026-08-10T12:00:47.085Z",
    "dateReserved": "2026-07-30T09:28:09.375Z",
    "dateUpdated": "2026-08-17T05:01:13.016Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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