pinctrl: generic: free maps on pinctrl_generic_to_map() failure

{
  "id": "3940877a71021dbdfec351bcd995c047a45ea1436c0486f9debc1f4732a07769",
  "url": "https://osv.dev/vulnerability/CVE-2026-90340",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "pinctrl: generic: free maps on pinctrl_generic_to_map() failure",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: pinctrl: generic: free maps on pinctrl_generic_to_map() failure pinctrl_generic_to_map() parses DT configuration and allocates pinctrl maps via pinctrl_utils_reserve_map(). If subsequent steps (such as pinctrl_utils_add_map_mux(), pinctrl_generic_add_group(), pinconf_generic_parse_dt_config(), or pinctrl_utils_add_map_configs()) return an error, *maps may contain partially allocated map entries. Returning the error directly without freeing *maps leaks the allocated mapping memory across all drivers that rely on pinctrl_generic_to_map(). Fix this by calling pinctrl_utils_free_map() and resetting *maps, *num_maps, and *num_reserved_maps in the error path of pinctrl_generic_to_map().",
    "evidence": "osv:CVE-2026-90340",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "7.2.6",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2026-90340",
      "aliases": [
        "CVE-2026-90340"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "aaaf31be04260316036f50a05b7d015c0d36b55a"
                },
                {
                  "fixed": "09f47abc95ee9e819e7e93cd68c1c23abe11c842"
                },
                {
                  "fixed": "17007cd700601777d9ee203a13d97e64ece3a10f"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-90340.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "7.2.0"
                },
                {
                  "fixed": "7.2.6"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-90340.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:32.736290183Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/09f47abc95ee9e819e7e93cd68c1c23abe11c842",
        "https://git.kernel.org/stable/c/17007cd700601777d9ee203a13d97e64ece3a10f",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90340.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-90340",
        "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/2026/90xxx/CVE-2026-90340.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-90340",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 500070,
  "published_at": "2026-09-17T16:08:51.635+00:00"
}