CVE-2022-50148 (GCVE-0-2022-50148)
Vulnerability from cvelistv5
Published
2025-06-18 11:03
Modified
2025-06-18 11:03
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: kernfs: fix potential NULL dereference in __kernfs_remove When lockdep is enabled, lockdep_assert_held_write would cause potential NULL pointer dereference. Fix the following smatch warnings: fs/kernfs/dir.c:1353 __kernfs_remove() warn: variable dereferenced before check 'kn' (see line 1346)
References
Impacted products
Vendor Product Version
Linux Linux Version: 393c3714081a53795bbff0e985d24146def6f57f
Version: 393c3714081a53795bbff0e985d24146def6f57f
Version: 393c3714081a53795bbff0e985d24146def6f57f
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{
  "containers": {
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      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/kernfs/dir.c"
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          "vendor": "Linux",
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          "vendor": "Linux",
          "versions": [
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              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
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            {
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              "status": "unaffected",
              "version": "5.19.2",
              "versionType": "semver"
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              "status": "unaffected",
              "version": "6.0",
              "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\nkernfs: fix potential NULL dereference in __kernfs_remove\n\nWhen lockdep is enabled, lockdep_assert_held_write would\ncause potential NULL pointer dereference.\n\nFix the following smatch warnings:\n\nfs/kernfs/dir.c:1353 __kernfs_remove() warn: variable dereferenced before check \u0027kn\u0027 (see line 1346)"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-06-18T11:03:08.462Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
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          "url": "https://git.kernel.org/stable/c/b871986d9d3071f5082664ac274d93f08db257cd"
        },
        {
          "url": "https://git.kernel.org/stable/c/4a9f35b8729c5bf13ea671c908c17ed74c48fc50"
        },
        {
          "url": "https://git.kernel.org/stable/c/72b5d5aef246a0387cefa23121dd90901c7a691a"
        }
      ],
      "title": "kernfs: fix potential NULL dereference in __kernfs_remove",
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  "cveMetadata": {
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    "assignerShortName": "Linux",
    "cveId": "CVE-2022-50148",
    "datePublished": "2025-06-18T11:03:08.462Z",
    "dateReserved": "2025-06-18T10:57:27.424Z",
    "dateUpdated": "2025-06-18T11:03:08.462Z",
    "state": "PUBLISHED"
  },
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  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2022-50148\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-06-18T11:15:44.857\",\"lastModified\":\"2025-06-18T13:47:40.833\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nkernfs: fix potential NULL dereference in __kernfs_remove\\n\\nWhen lockdep is enabled, lockdep_assert_held_write would\\ncause potential NULL pointer dereference.\\n\\nFix the following smatch warnings:\\n\\nfs/kernfs/dir.c:1353 __kernfs_remove() warn: variable dereferenced before check \u0027kn\u0027 (see line 1346)\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: kernfs: se corrige una posible desreferencia de punteros NULL en __kernfs_remove. Cuando lockdep est\u00e1 habilitado, lockdep_assert_held_write podr\u00eda causar una posible desreferencia de punteros NULL. Se corrigen las siguientes advertencias de coincidencia: fs/kernfs/dir.c:1353 __kernfs_remove() warn: variable desreferenciada antes de la comprobaci\u00f3n \u0027kn\u0027 (v\u00e9ase la l\u00ednea 1346).\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/4a9f35b8729c5bf13ea671c908c17ed74c48fc50\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/72b5d5aef246a0387cefa23121dd90901c7a691a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/b871986d9d3071f5082664ac274d93f08db257cd\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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