CVE-2026-93273 (GCVE-0-2026-93273)
Vulnerability from cvelistv5
Published
2026-09-24 15:52
Modified
2026-10-19 09:08
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: regulator: tps6594: Fix device node reference leaks in multiphase loop In tps6594_regulator_probe(), the multi-phase configuration loop calls of_find_node_by_name() to find buck nodes by name, and of_get_parent() twice to navigate to the PMIC parent node. None of the acquired node references (np, intermediate parent, np_pmic_parent) are ever released via of_node_put(), causing a reference leak on every loop iteration. Additionally, of_find_node_by_name() can return NULL, but the result was immediately passed to of_node_full_name() and of_get_parent() without a NULL check, which could lead to a NULL pointer dereference. Fix this by: - Adding a NULL check for np after of_find_node_by_name() - Storing the intermediate parent node in a local variable np_parent - Calling of_node_put() on np, np_parent and np_pmic_parent at the end of each loop iteration
References
Impacted products
Vendor Product Version
Linux Linux Version: f17ccc5deb4d024bb52fd3433471e77ab7ae9ad8
Version: f17ccc5deb4d024bb52fd3433471e77ab7ae9ad8
Version: f17ccc5deb4d024bb52fd3433471e77ab7ae9ad8
Version: f17ccc5deb4d024bb52fd3433471e77ab7ae9ad8
Version: f17ccc5deb4d024bb52fd3433471e77ab7ae9ad8
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{
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          "product": "Linux",
          "programFiles": [
            "drivers/regulator/tps6594-regulator.c"
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          "vendor": "Linux",
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              "status": "unaffected",
              "version": "7.3",
              "versionType": "original_commit_for_fix"
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      "cpeApplicability": [
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              "negate": false,
              "operator": "OR"
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nregulator: tps6594: Fix device node reference leaks in multiphase loop\n\nIn tps6594_regulator_probe(), the multi-phase configuration loop calls\nof_find_node_by_name() to find buck nodes by name, and of_get_parent()\ntwice to navigate to the PMIC parent node. None of the acquired node\nreferences (np, intermediate parent, np_pmic_parent) are ever released\nvia of_node_put(), causing a reference leak on every loop iteration.\n\nAdditionally, of_find_node_by_name() can return NULL, but the result was\nimmediately passed to of_node_full_name() and of_get_parent() without a\nNULL check, which could lead to a NULL pointer dereference.\n\nFix this by:\n- Adding a NULL check for np after of_find_node_by_name()\n- Storing the intermediate parent node in a local variable np_parent\n- Calling of_node_put() on np, np_parent and np_pmic_parent at the\n  end of each loop iteration"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-19T09:08:27.727Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/28f70e0aa767a8f022c70ed75ecef227dc668121"
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        {
          "url": "https://git.kernel.org/stable/c/4a672bff99f6b58dde419fd12b3a53da137f032d"
        },
        {
          "url": "https://git.kernel.org/stable/c/68ce4f8223b78f8616ec7f4a02c38988eae627d2"
        },
        {
          "url": "https://git.kernel.org/stable/c/fceac25487b21d6db940d2aed368e465d89cd1f4"
        },
        {
          "url": "https://git.kernel.org/stable/c/7fd28093b3effc4f92566466df364622830ec608"
        }
      ],
      "title": "regulator: tps6594: Fix device node reference leaks in multiphase loop",
      "x_generator": {
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  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-93273",
    "datePublished": "2026-09-24T15:52:15.213Z",
    "dateReserved": "2026-09-17T16:02:15.098Z",
    "dateUpdated": "2026-10-19T09:08:27.727Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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