cve-2021-47403
Vulnerability from cvelistv5
Published
2024-05-21 15:03
Modified
2025-01-16 21:03
Severity ?
7.1 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: ipack: ipoctal: fix module reference leak A reference to the carrier module was taken on every open but was only released once when the final reference to the tty struct was dropped. Fix this by taking the module reference and initialising the tty driver data when installing the tty.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/31398849b84ebae0d43a1cf379cb9895597f221aPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/3253c87e1e5bc0107aab773af2f135ebccf38666Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/7cea848678470daadbfdaa6a112b823c290f900cPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/811178f296b16af30264def74c8d2179a72d5562Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/9c5b77a7ffc983b2429ce158b50497c5d3c86a69Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/bb8a4fcb2136508224c596a7e665bdba1d7c3c27Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c0adb5a947dec6cff7050ec56d78ecd3916f9ce6Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/dde4c1429b97383689f755ce92b4ed1e84a9c92bPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/31398849b84ebae0d43a1cf379cb9895597f221aPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/3253c87e1e5bc0107aab773af2f135ebccf38666Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/7cea848678470daadbfdaa6a112b823c290f900cPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/811178f296b16af30264def74c8d2179a72d5562Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/9c5b77a7ffc983b2429ce158b50497c5d3c86a69Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/bb8a4fcb2136508224c596a7e665bdba1d7c3c27Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/c0adb5a947dec6cff7050ec56d78ecd3916f9ce6Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/dde4c1429b97383689f755ce92b4ed1e84a9c92bPatch
Impacted products
Vendor Product Version
Linux Linux Version: 82a82340bab6c251e0705339f60763718eaa2a22
Version: 82a82340bab6c251e0705339f60763718eaa2a22
Version: 82a82340bab6c251e0705339f60763718eaa2a22
Version: 82a82340bab6c251e0705339f60763718eaa2a22
Version: 82a82340bab6c251e0705339f60763718eaa2a22
Version: 82a82340bab6c251e0705339f60763718eaa2a22
Version: 82a82340bab6c251e0705339f60763718eaa2a22
Version: 82a82340bab6c251e0705339f60763718eaa2a22
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   Linux Linux Version: 3.18
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{
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      cveId: "CVE-2021-47403",
      datePublished: "2024-05-21T15:03:57.344Z",
      dateReserved: "2024-05-21T14:58:30.816Z",
      dateUpdated: "2025-01-16T21:03:52.304Z",
      state: "PUBLISHED",
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   "vulnerability-lookup:meta": {
      nvd: "{\"cve\":{\"id\":\"CVE-2021-47403\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-05-21T15:15:25.803\",\"lastModified\":\"2025-04-02T14:52:09.830\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nipack: ipoctal: fix module reference leak\\n\\nA reference to the carrier module was taken on every open but was only\\nreleased once when the final reference to the tty struct was dropped.\\n\\nFix this by taking the module reference and initialising the tty driver\\ndata when installing the tty.\"},{\"lang\":\"es\",\"value\":\" En el kernel de Linux, se resolvió la siguiente vulnerabilidad: ipack: ipoctal: reparar fuga de referencia del módulo. Se tomó una referencia al módulo portador en cada apertura, pero solo se publicó una vez cuando se eliminó la referencia final a la estructura tty. Solucione este problema tomando la referencia del módulo e inicializando los datos del controlador tty al instalar el 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         dataType: "CVE_RECORD",
         dataVersion: "5.1",
      },
   },
}


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