FKIE_CVE-2026-53150

Vulnerability from fkie_nvd - Published: 2026-06-25 09:16 - Updated: 2026-06-30 14:44
Severity
Summary
In the Linux kernel, the following vulnerability has been resolved: thunderbolt: Reject zero-length property entries in validator tb_property_entry_valid() accepts entries with length == 0 for DIRECTORY, DATA, and TEXT types. A zero-length TEXT entry passes validation but causes an underflow in the null-termination logic: property->value.text[property->length * 4 - 1] = '\0'; When property->length is 0 this writes to offset -1 relative to the allocation. Reject zero-length entries early in the validator since they have no valid representation in the XDomain property protocol.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2e0ddac549ebd713eb9f4a15b6496e3440a17d8b
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/35d6c9252a152e756768a26dbf216b9dd9dd8e92
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/3b6e68cb97f725385010264a873e14a3921b6b8a
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/581c2053ab4dbe27e83c9e62deb4c73aa8dc0c3a
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/5f56bc6bddffe8710ba0ba8844023b5a44ca90e4
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/99d9dbad1463afb510d42c9714f846361d1b726d
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ca11e7da4fba4b394f69e16448f4463c44c84de6
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/cff8eb65d1eafe7793e54b4d0cf6bf831644630b
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/thunderbolt/property.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "581c2053ab4dbe27e83c9e62deb4c73aa8dc0c3a",
              "status": "affected",
              "version": "cdae7c07e3e3509eaabc18c1640a55dc5b99c179",
              "versionType": "git"
            },
            {
              "lessThan": "35d6c9252a152e756768a26dbf216b9dd9dd8e92",
              "status": "affected",
              "version": "cdae7c07e3e3509eaabc18c1640a55dc5b99c179",
              "versionType": "git"
            },
            {
              "lessThan": "99d9dbad1463afb510d42c9714f846361d1b726d",
              "status": "affected",
              "version": "cdae7c07e3e3509eaabc18c1640a55dc5b99c179",
              "versionType": "git"
            },
            {
              "lessThan": "5f56bc6bddffe8710ba0ba8844023b5a44ca90e4",
              "status": "affected",
              "version": "cdae7c07e3e3509eaabc18c1640a55dc5b99c179",
              "versionType": "git"
            },
            {
              "lessThan": "ca11e7da4fba4b394f69e16448f4463c44c84de6",
              "status": "affected",
              "version": "cdae7c07e3e3509eaabc18c1640a55dc5b99c179",
              "versionType": "git"
            },
            {
              "lessThan": "2e0ddac549ebd713eb9f4a15b6496e3440a17d8b",
              "status": "affected",
              "version": "cdae7c07e3e3509eaabc18c1640a55dc5b99c179",
              "versionType": "git"
            },
            {
              "lessThan": "3b6e68cb97f725385010264a873e14a3921b6b8a",
              "status": "affected",
              "version": "cdae7c07e3e3509eaabc18c1640a55dc5b99c179",
              "versionType": "git"
            },
            {
              "lessThan": "cff8eb65d1eafe7793e54b4d0cf6bf831644630b",
              "status": "affected",
              "version": "cdae7c07e3e3509eaabc18c1640a55dc5b99c179",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/thunderbolt/property.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.15"
            },
            {
              "lessThan": "4.15",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.259",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.210",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.176",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.143",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.94",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.36",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.0.*",
              "status": "unaffected",
              "version": "7.0.13",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.1",
              "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\nthunderbolt: Reject zero-length property entries in validator\n\ntb_property_entry_valid() accepts entries with length == 0 for\nDIRECTORY, DATA, and TEXT types.  A zero-length TEXT entry passes\nvalidation but causes an underflow in the null-termination logic:\n\n  property-\u003evalue.text[property-\u003elength * 4 - 1] = \u0027\\0\u0027;\n\nWhen property-\u003elength is 0 this writes to offset -1 relative to\nthe allocation.\n\nReject zero-length entries early in the validator since they have no\nvalid representation in the XDomain property protocol."
    }
  ],
  "id": "CVE-2026-53150",
  "lastModified": "2026-06-30T14:44:27.313",
  "metrics": {},
  "published": "2026-06-25T09:16:32.367",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/2e0ddac549ebd713eb9f4a15b6496e3440a17d8b"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/35d6c9252a152e756768a26dbf216b9dd9dd8e92"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/3b6e68cb97f725385010264a873e14a3921b6b8a"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/581c2053ab4dbe27e83c9e62deb4c73aa8dc0c3a"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/5f56bc6bddffe8710ba0ba8844023b5a44ca90e4"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/99d9dbad1463afb510d42c9714f846361d1b726d"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/ca11e7da4fba4b394f69e16448f4463c44c84de6"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/cff8eb65d1eafe7793e54b4d0cf6bf831644630b"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}


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