CVE-2026-64589 (GCVE-0-2026-64589)
Vulnerability from cvelistv5
Published
2026-08-06 07:13
Modified
2026-08-17 04:58
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: i2c: core: fix NULL-deref on adapter registration failure If adapter registration ever fails the release callback would trigger a NULL-pointer dereference as the completion struct has not been initialised. Note that before the offending commit this would instead have resulted in a minor memory leak of the adapter name.
References
Impacted products
Vendor Product Version
Linux Linux Version: e19f31169f85c712c9fca35bfd28ceb093a9f574
Version: 3f8c4f5e9a57868fa107016c81165686d23325f2
Version: 3f8c4f5e9a57868fa107016c81165686d23325f2
Version: 3f8c4f5e9a57868fa107016c81165686d23325f2
Version: 6.12.11   ≤
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/i2c/i2c-core-base.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "2ce0a74bfa3acdfcdb00cf02f181f2754b451f42",
              "status": "affected",
              "version": "e19f31169f85c712c9fca35bfd28ceb093a9f574",
              "versionType": "git"
            },
            {
              "lessThan": "3351c5e77749a0c8a1e252b95420c143ebcf07ac",
              "status": "affected",
              "version": "3f8c4f5e9a57868fa107016c81165686d23325f2",
              "versionType": "git"
            },
            {
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              "status": "affected",
              "version": "3f8c4f5e9a57868fa107016c81165686d23325f2",
              "versionType": "git"
            },
            {
              "lessThan": "2295d2bb101faa663fbc45fadbb3fec45f107441",
              "status": "affected",
              "version": "3f8c4f5e9a57868fa107016c81165686d23325f2",
              "versionType": "git"
            },
            {
              "lessThan": "6.12.96",
              "status": "affected",
              "version": "6.12.11",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/i2c/i2c-core-base.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.13"
            },
            {
              "lessThan": "6.13",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.96",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.39",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.1.*",
              "status": "unaffected",
              "version": "7.1.4",
              "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": "6.12.96",
                  "versionStartIncluding": "6.12.11",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.39",
                  "versionStartIncluding": "6.13",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.1.4",
                  "versionStartIncluding": "6.13",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2",
                  "versionStartIncluding": "6.13",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ni2c: core: fix NULL-deref on adapter registration failure\n\nIf adapter registration ever fails the release callback would trigger a\nNULL-pointer dereference as the completion struct has not been\ninitialised.\n\nNote that before the offending commit this would instead have resulted\nin a minor memory leak of the adapter name."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-17T04:58:10.524Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/2ce0a74bfa3acdfcdb00cf02f181f2754b451f42"
        },
        {
          "url": "https://git.kernel.org/stable/c/3351c5e77749a0c8a1e252b95420c143ebcf07ac"
        },
        {
          "url": "https://git.kernel.org/stable/c/034e307428119b67f5f18a35e4f4e7d15a2b9774"
        },
        {
          "url": "https://git.kernel.org/stable/c/2295d2bb101faa663fbc45fadbb3fec45f107441"
        }
      ],
      "title": "i2c: core: fix NULL-deref on adapter registration failure",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-64589",
    "datePublished": "2026-08-06T07:13:47.291Z",
    "dateReserved": "2026-07-19T15:36:31.798Z",
    "dateUpdated": "2026-08-17T04:58:10.524Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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