CVE-2025-40099 (GCVE-0-2025-40099)
Vulnerability from cvelistv5
Published
2025-10-30 09:48
Modified
2025-10-30 09:48
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: cifs: parse_dfs_referrals: prevent oob on malformed input Malicious SMB server can send invalid reply to FSCTL_DFS_GET_REFERRALS - reply smaller than sizeof(struct get_dfs_referral_rsp) - reply with number of referrals smaller than NumberOfReferrals in the header Processing of such replies will cause oob. Return -EINVAL error on such replies to prevent oob-s.
References
Impacted products
Vendor Product Version
Linux Linux Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
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{
  "containers": {
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        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/smb/client/misc.c"
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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\ncifs: parse_dfs_referrals: prevent oob on malformed input\n\nMalicious SMB server can send invalid reply to FSCTL_DFS_GET_REFERRALS\n\n- reply smaller than sizeof(struct get_dfs_referral_rsp)\n- reply with number of referrals smaller than NumberOfReferrals in the\nheader\n\nProcessing of such replies will cause oob.\n\nReturn -EINVAL error on such replies to prevent oob-s."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-10-30T09:48:05.859Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
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          "url": "https://git.kernel.org/stable/c/cfacc7441f760e4a73cc71b6ff1635261d534657"
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        {
          "url": "https://git.kernel.org/stable/c/6447b0e355562a1ff748c4a2ffb89aae7e84d2c9"
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      ],
      "title": "cifs: parse_dfs_referrals: prevent oob on malformed input",
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    "assignerShortName": "Linux",
    "cveId": "CVE-2025-40099",
    "datePublished": "2025-10-30T09:48:05.859Z",
    "dateReserved": "2025-04-16T07:20:57.164Z",
    "dateUpdated": "2025-10-30T09:48:05.859Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2025-40099\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-10-30T10:15:34.337\",\"lastModified\":\"2025-10-30T15:03:13.440\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\ncifs: parse_dfs_referrals: prevent oob on malformed input\\n\\nMalicious SMB server can send invalid reply to FSCTL_DFS_GET_REFERRALS\\n\\n- reply smaller than sizeof(struct get_dfs_referral_rsp)\\n- reply with number of referrals smaller than NumberOfReferrals in the\\nheader\\n\\nProcessing of such replies will cause oob.\\n\\nReturn -EINVAL error on such replies to prevent oob-s.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/15c73964da9df994302f579ed14ee5fdbce7a332\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/6447b0e355562a1ff748c4a2ffb89aae7e84d2c9\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/8bc4a8d39bac23d8b044fd3e2dbfd965f1d9b058\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/bb0f2e66e1ac043a5b238f5bcab4f26f3c317039\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/cfacc7441f760e4a73cc71b6ff1635261d534657\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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