CVE-2025-38561 (GCVE-0-2025-38561)
Vulnerability from cvelistv5
Published
2025-08-19 17:02
Modified
2025-09-03 12:31
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix Preauh_HashValue race condition If client send multiple session setup requests to ksmbd, Preauh_HashValue race condition could happen. There is no need to free sess->Preauh_HashValue at session setup phase. It can be freed together with session at connection termination phase.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/44a3059c4c8cc635a1fb2afd692d0730ca1ba4b6
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/6613887da1d18dd2ecfd6c6148a873c4d903ebdc
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/7d7c0c5304c88bcbd7a85e9bcd61d27e998ba5fc
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b69fd87076daa66f3d186bd421a7b0ee0cb45829
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/edeecc7871e8fc0878d53ce286c75040a0e38f6c
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/fbf5c0845ed15122a770bca9be1d9b60b470d3aa
Impacted products
Vendor Product Version
Linux Linux Version: 0626e6641f6b467447c81dd7678a69c66f7746cf
Version: 0626e6641f6b467447c81dd7678a69c66f7746cf
Version: 0626e6641f6b467447c81dd7678a69c66f7746cf
Version: 0626e6641f6b467447c81dd7678a69c66f7746cf
Version: 0626e6641f6b467447c81dd7678a69c66f7746cf
Version: 0626e6641f6b467447c81dd7678a69c66f7746cf
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   Linux Linux Version: 5.15
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{
  "containers": {
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      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/smb/server/smb2pdu.c"
          ],
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          "programFiles": [
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          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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            {
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              "version": "0",
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            {
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              "version": "6.6.102",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.42",
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            },
            {
              "lessThanOrEqual": "6.15.*",
              "status": "unaffected",
              "version": "6.15.10",
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            {
              "lessThanOrEqual": "6.16.*",
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              "version": "6.16.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.17-rc1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
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              "cpeMatch": [
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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\nksmbd: fix Preauh_HashValue race condition\n\nIf client send multiple session setup requests to ksmbd,\nPreauh_HashValue race condition could happen.\nThere is no need to free sess-\u003ePreauh_HashValue at session setup phase.\nIt can be freed together with session at connection termination phase."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-09-03T12:31:55.215Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/fbf5c0845ed15122a770bca9be1d9b60b470d3aa"
        },
        {
          "url": "https://git.kernel.org/stable/c/b69fd87076daa66f3d186bd421a7b0ee0cb45829"
        },
        {
          "url": "https://git.kernel.org/stable/c/edeecc7871e8fc0878d53ce286c75040a0e38f6c"
        },
        {
          "url": "https://git.kernel.org/stable/c/7d7c0c5304c88bcbd7a85e9bcd61d27e998ba5fc"
        },
        {
          "url": "https://git.kernel.org/stable/c/6613887da1d18dd2ecfd6c6148a873c4d903ebdc"
        },
        {
          "url": "https://git.kernel.org/stable/c/44a3059c4c8cc635a1fb2afd692d0730ca1ba4b6"
        }
      ],
      "title": "ksmbd: fix Preauh_HashValue race condition",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-38561",
    "datePublished": "2025-08-19T17:02:38.719Z",
    "dateReserved": "2025-04-16T04:51:24.025Z",
    "dateUpdated": "2025-09-03T12:31:55.215Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2025-38561\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-08-19T17:15:32.503\",\"lastModified\":\"2025-08-20T14:40:17.713\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nksmbd: fix Preauh_HashValue race condition\\n\\nIf client send multiple session setup requests to ksmbd,\\nPreauh_HashValue race condition could happen.\\nThere is no need to free sess-\u003ePreauh_HashValue at session setup phase.\\nIt can be freed together with session at connection termination phase.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ksmbd: se corrige la condici\u00f3n de ejecuci\u00f3n Preauh_HashValue. Si el cliente env\u00eda varias solicitudes de configuraci\u00f3n de sesi\u00f3n a ksmbd, podr\u00eda producirse la condici\u00f3n de ejecuci\u00f3n Preauh_HashValue. No es necesario liberar sess-\u0026gt;Preauh_HashValue durante la configuraci\u00f3n de la sesi\u00f3n. Se puede liberar junto con la sesi\u00f3n al finalizar la conexi\u00f3n.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/44a3059c4c8cc635a1fb2afd692d0730ca1ba4b6\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/6613887da1d18dd2ecfd6c6148a873c4d903ebdc\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/7d7c0c5304c88bcbd7a85e9bcd61d27e998ba5fc\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/b69fd87076daa66f3d186bd421a7b0ee0cb45829\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/edeecc7871e8fc0878d53ce286c75040a0e38f6c\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/fbf5c0845ed15122a770bca9be1d9b60b470d3aa\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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