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CVE-2022-49822

Full vulnerability record from the local CVENow database.

Description

In the Linux kernel, the following vulnerability has been resolved: cifs: Fix connections leak when tlink setup failed If the tlink setup failed, lost to put the connections, then the module refcnt leak since the cifsd kthread not exit. Also leak the fscache info, and for next mount with fsc, it will print the follow errors: CIFS: Cache volume key already in use (cifs,127.0.0.1:445,TEST) Let's check the result of tlink setup, and do some cleanup.

Severity
MEDIUM
CVSS score
5.5 (v3.1)
Vulnerability status
Modified
Source identifier
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Published
2025-05-01 15:16:05.623000
Last modified
2026-11-05 20:17:14.307000
View original CVE JSON
{
  "id": "CVE-2022-49822",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2025-05-01T15:16:05.623",
  "lastModified": "2026-11-05T20:17:14.307",
  "vulnStatus": "Modified",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncifs: Fix connections leak when tlink setup failed\n\nIf the tlink setup failed, lost to put the connections, then\nthe module refcnt leak since the cifsd kthread not exit.\n\nAlso leak the fscache info, and for next mount with fsc, it will\nprint the follow errors:\n  CIFS: Cache volume key already in use (cifs,127.0.0.1:445,TEST)\n\nLet's check the result of tlink setup, and do some cleanup."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: cifs: Se corrige la fuga de conexiones al fallar la configuración de Tlink. Si la configuración de Tlink falla, se pierden las conexiones y se produce una fuga de referencia del módulo, ya que el kthread de cifsd no finaliza. También se filtra la información de fscache, y en el siguiente montaje con fsc, se mostrarán los siguientes errores: CIFS: La clave del volumen de caché ya está en uso (cifs,127.0.0.1:445,TEST). Revisemos el resultado de la configuración de Tlink y realicemos una limpieza."
    }
  ],
  "affected": [
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      "affectedData": [
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  ],
  "metrics": {
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          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "HIGH"
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}