gpio: shared: fix use-after-free bug when adding shared proxies

{
  "id": "e3c6cda4b1dbc5a470547729619b60fd7f8dfb1805ef09f44379dd429db00d71",
  "url": "https://www.cve.org/CVERecord?id=CVE-2026-99162",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "gpio: shared: fix use-after-free bug when adding shared proxies",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: gpio: shared: fix use-after-free bug when adding shared proxies The GPIO lookup table can stay alive for longer than the kobject whose name string's address we're assigning to lookup->dev_id. Fix a potential UAF by duplicating the string.",
    "evidence": "cve:CVE-2026-99162",
    "products": [
      {
        "name": {
          "value": "Linux",
          "evidence": "/containers/cna/affected/0/product"
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        "prerequisites": [],
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        "affected_versions": []
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      {
        "name": {
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          "evidence": "/containers/cna/affected/1/product"
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        "affected_versions": []
      }
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    "severity": "unknown",
    "structured": {
      "id": "CVE-2026-99162",
      "aliases": [
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      "metrics": [],
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          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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              "versionType": "git"
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          ],
          "programFiles": [
            "drivers/gpio/gpiolib-shared.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
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              "status": "affected",
              "version": "6.19"
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            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "6.19",
              "versionType": "semver"
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            {
              "status": "unaffected",
              "version": "7.2.13",
              "versionType": "semver",
              "lessThanOrEqual": "7.2.*"
            },
            {
              "status": "unaffected",
              "version": "7.3",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "drivers/gpio/gpiolib-shared.c"
          ],
          "defaultStatus": "affected"
        }
      ],
      "modified": "2026-10-28T10:35:14.755Z",
      "provider": "cve",
      "references": [
        "https://git.kernel.org/stable/c/8861491f8501516429e0e6c9d7a056480047227c",
        "https://git.kernel.org/stable/c/bd22f7e63509fa758cf500d9af3e88a3d3df96be"
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      "provider_metadata": {
        "cna": {
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          "shortName": "Linux",
          "dateUpdated": "2026-10-28T10:35:14.755Z"
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        "value": "CVE-2026-99162",
        "evidence": "/cveMetadata/cveId"
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    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-cve",
  "document_id": 425360,
  "published_at": "2026-10-28T10:35:14.755+00:00"
}