FKIE_CVE-2025-40080

Vulnerability from fkie_nvd - Published: 2025-10-28 12:15 - Updated: 2026-06-17 09:21
Severity
Summary
In the Linux kernel, the following vulnerability has been resolved: nbd: restrict sockets to TCP and UDP Recently, syzbot started to abuse NBD with all kinds of sockets. Commit cf1b2326b734 ("nbd: verify socket is supported during setup") made sure the socket supported a shutdown() method. Explicitely accept TCP and UNIX stream sockets.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/37ad11f20e164c23ce827dd455b42c0fdd29685c
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/4f9e6ff6319dbcebea64b50af0304cf0ad7e97e7
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/808e2335bc1cf2293b9e36ccc94c267c81509c71
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/9f7c02e031570e8291a63162c6c046dc15ff85b0
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c365e8f20f4201d873a70385bd919f0fb531e960
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/block/nbd.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "c365e8f20f4201d873a70385bd919f0fb531e960",
              "status": "affected",
              "version": "cf1b2326b734896734c6e167e41766f9cee7686a",
              "versionType": "git"
            },
            {
              "lessThan": "4f9e6ff6319dbcebea64b50af0304cf0ad7e97e7",
              "status": "affected",
              "version": "cf1b2326b734896734c6e167e41766f9cee7686a",
              "versionType": "git"
            },
            {
              "lessThan": "37ad11f20e164c23ce827dd455b42c0fdd29685c",
              "status": "affected",
              "version": "cf1b2326b734896734c6e167e41766f9cee7686a",
              "versionType": "git"
            },
            {
              "lessThan": "808e2335bc1cf2293b9e36ccc94c267c81509c71",
              "status": "affected",
              "version": "cf1b2326b734896734c6e167e41766f9cee7686a",
              "versionType": "git"
            },
            {
              "lessThan": "9f7c02e031570e8291a63162c6c046dc15ff85b0",
              "status": "affected",
              "version": "cf1b2326b734896734c6e167e41766f9cee7686a",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "4df728651b8a99693c69962d8e5a5b9e5a3bbcc7",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "083322455c67d278c56a66b73f1221f004ee600a",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "4fa1cbd587ef967812f9d9f6ce46ec1dead7502c",
              "versionType": "git"
            },
            {
              "lessThan": "4.15",
              "status": "affected",
              "version": "4.14.152",
              "versionType": "semver"
            },
            {
              "lessThan": "4.20",
              "status": "affected",
              "version": "4.19.82",
              "versionType": "semver"
            },
            {
              "lessThan": "5.4",
              "status": "affected",
              "version": "5.3.9",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/block/nbd.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.4"
            },
            {
              "lessThan": "5.4",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.156",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.112",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.53",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.17.*",
              "status": "unaffected",
              "version": "6.17.3",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.18",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnbd: restrict sockets to TCP and UDP\n\nRecently, syzbot started to abuse NBD with all kinds of sockets.\n\nCommit cf1b2326b734 (\"nbd: verify socket is supported during setup\")\nmade sure the socket supported a shutdown() method.\n\nExplicitely accept TCP and UNIX stream sockets."
    }
  ],
  "id": "CVE-2025-40080",
  "lastModified": "2026-06-17T09:21:13.797",
  "metrics": {},
  "published": "2025-10-28T12:15:42.587",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/37ad11f20e164c23ce827dd455b42c0fdd29685c"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/4f9e6ff6319dbcebea64b50af0304cf0ad7e97e7"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/808e2335bc1cf2293b9e36ccc94c267c81509c71"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/9f7c02e031570e8291a63162c6c046dc15ff85b0"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/c365e8f20f4201d873a70385bd919f0fb531e960"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Deferred"
}


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