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FKIE_CVE-2026-89982

Vulnerability from fkie_nvd - Published: 2026-09-16 11:17 - Updated: 2026-09-16 11:17
Severity
Summary
In the Linux kernel, the following vulnerability has been resolved: i2c: mux: Fix channel node leak on adapter add failure i2c_mux_add_adapter() takes a reference to the Device Tree channel node before registering the new adapter. If adapter registration fails, the error path frees the private data without dropping that reference. Release the channel node before freeing the private data.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/0927153f2abf48b6cc3e5f27063a17f7a8d47f38
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2b3b06cb709c4bf75a3fe3da3a0ca368ee3b40e5
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/385c7af4e3b95d0769fd211831674e83b16a2ebf
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/4c9bc46a2a4afb7a11c48d33bdf19febab431015
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/4f42f70afd2447f3c82ca69d1e03466a75348ba9
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/694e7e6edf249723ca7d3ef77c2ca1badfc78dc4
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b580f062b24c4eef562f08f210c028adb34ef14e
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/dd2c1e6747b17b24ecddd48a7bb6bb964c2793d1
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/i2c/i2c-mux.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "4f42f70afd2447f3c82ca69d1e03466a75348ba9",
              "status": "affected",
              "version": "bc45449b1444611d68466ae7f45f235420d79019",
              "versionType": "git"
            },
            {
              "lessThan": "4c9bc46a2a4afb7a11c48d33bdf19febab431015",
              "status": "affected",
              "version": "bc45449b1444611d68466ae7f45f235420d79019",
              "versionType": "git"
            },
            {
              "lessThan": "dd2c1e6747b17b24ecddd48a7bb6bb964c2793d1",
              "status": "affected",
              "version": "bc45449b1444611d68466ae7f45f235420d79019",
              "versionType": "git"
            },
            {
              "lessThan": "0927153f2abf48b6cc3e5f27063a17f7a8d47f38",
              "status": "affected",
              "version": "bc45449b1444611d68466ae7f45f235420d79019",
              "versionType": "git"
            },
            {
              "lessThan": "b580f062b24c4eef562f08f210c028adb34ef14e",
              "status": "affected",
              "version": "bc45449b1444611d68466ae7f45f235420d79019",
              "versionType": "git"
            },
            {
              "lessThan": "2b3b06cb709c4bf75a3fe3da3a0ca368ee3b40e5",
              "status": "affected",
              "version": "bc45449b1444611d68466ae7f45f235420d79019",
              "versionType": "git"
            },
            {
              "lessThan": "694e7e6edf249723ca7d3ef77c2ca1badfc78dc4",
              "status": "affected",
              "version": "bc45449b1444611d68466ae7f45f235420d79019",
              "versionType": "git"
            },
            {
              "lessThan": "385c7af4e3b95d0769fd211831674e83b16a2ebf",
              "status": "affected",
              "version": "bc45449b1444611d68466ae7f45f235420d79019",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/i2c/i2c-mux.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "3.5"
            },
            {
              "lessThan": "3.5",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.270",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.221",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.188",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.157",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.110",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.51",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.2.*",
              "status": "unaffected",
              "version": "7.2.5",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3-rc1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ni2c: mux: Fix channel node leak on adapter add failure\n\ni2c_mux_add_adapter() takes a reference to the Device Tree channel node\nbefore registering the new adapter. If adapter registration fails, the\nerror path frees the private data without dropping that reference.\n\nRelease the channel node before freeing the private data."
    }
  ],
  "id": "CVE-2026-89982",
  "lastModified": "2026-09-16T11:17:09.147",
  "metrics": {},
  "published": "2026-09-16T11:17:09.147",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/0927153f2abf48b6cc3e5f27063a17f7a8d47f38"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/2b3b06cb709c4bf75a3fe3da3a0ca368ee3b40e5"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/385c7af4e3b95d0769fd211831674e83b16a2ebf"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/4c9bc46a2a4afb7a11c48d33bdf19febab431015"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/4f42f70afd2447f3c82ca69d1e03466a75348ba9"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/694e7e6edf249723ca7d3ef77c2ca1badfc78dc4"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/b580f062b24c4eef562f08f210c028adb34ef14e"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/dd2c1e6747b17b24ecddd48a7bb6bb964c2793d1"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}



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