pinctrl: pinconf-generic: Fully validate 'pinmux' property

{
  "id": "022b2f8fc31cd306ff7bd022b9cd611f4e1caf011eba4c99fccbff51d1eedebb",
  "url": "https://osv.dev/vulnerability/CVE-2026-53307",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "pinctrl: pinconf-generic: Fully validate 'pinmux' property",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: pinctrl: pinconf-generic: Fully validate 'pinmux' property The pinconf_generic_parse_dt_pinmux() assumes that the 'pinmux' property is not empty when present. This might be not true. With that, the allocator will give a special value in return and not NULL which lead to the crash when trying to access that (invalid) memory. Fix that by fully validating 'pinmux' value, including its length.",
    "evidence": "osv:CVE-2026-53307",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.18.33",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "7.0.10",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2026-53307",
      "aliases": [
        "CVE-2026-53307"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "7112c05fff83e15726dd60a10248b76474e3cdf9"
                },
                {
                  "fixed": "6476aac13805721e16439bd71f0e1703a4154517"
                },
                {
                  "fixed": "b7842b722169359e7ffe4b838d2496e9e72ac996"
                },
                {
                  "fixed": "c98324ea7849b6e5baa1774f71709b375a2c2f9e"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-53307.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.15.0"
                },
                {
                  "fixed": "6.18.33"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.19.0"
                },
                {
                  "fixed": "7.0.10"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-53307.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:45.619467574Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/6476aac13805721e16439bd71f0e1703a4154517",
        "https://git.kernel.org/stable/c/b7842b722169359e7ffe4b838d2496e9e72ac996",
        "https://git.kernel.org/stable/c/c98324ea7849b6e5baa1774f71709b375a2c2f9e",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53307.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-53307",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
      ],
      "provider_metadata": {
        "cna_assigner": "Linux",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53307.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-53307",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 513515,
  "published_at": "2026-06-26T19:41:02.046+00:00"
}