CVE-2025-40056 (GCVE-0-2025-40056)

Vulnerability from cvelistv5 – Published: 2025-10-28 11:48 – Updated: 2025-12-01 06:17
VLAI?
Title
vhost: vringh: Fix copy_to_iter return value check
Summary
In the Linux kernel, the following vulnerability has been resolved: vhost: vringh: Fix copy_to_iter return value check The return value of copy_to_iter can't be negative, check whether the copied length is equal to the requested length instead of checking for negative values.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 309bba39c945ac8ab8083ac05cd6cfe5822968e0 , < bd71e7e0a612740e4de5524880c7cd40293af5f7 (git)
Affected: 309bba39c945ac8ab8083ac05cd6cfe5822968e0 , < 781226e11d5bdea0d69c7b5aa3cda874093c73b8 (git)
Affected: 309bba39c945ac8ab8083ac05cd6cfe5822968e0 , < b3a950d236e98440c07405ba597b11bce56a8050 (git)
Affected: 309bba39c945ac8ab8083ac05cd6cfe5822968e0 , < 68aac2b335d474b938d154b9c95cbc58838cb2ce (git)
Affected: 309bba39c945ac8ab8083ac05cd6cfe5822968e0 , < 439263376c2c4e126cac0d07e4987568de4eaba5 (git)
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    Linux Linux Affected: 6.0
Unaffected: 0 , < 6.0 (semver)
Unaffected: 6.1.156 , ≤ 6.1.* (semver)
Unaffected: 6.6.112 , ≤ 6.6.* (semver)
Unaffected: 6.12.53 , ≤ 6.12.* (semver)
Unaffected: 6.17.3 , ≤ 6.17.* (semver)
Unaffected: 6.18 , ≤ * (original_commit_for_fix)
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/vhost/vringh.c"
          ],
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          "vendor": "Linux",
          "versions": [
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              "status": "affected",
              "version": "6.0"
            },
            {
              "lessThan": "6.0",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
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              "status": "unaffected",
              "version": "6.1.156",
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            {
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              "status": "unaffected",
              "version": "6.12.53",
              "versionType": "semver"
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            {
              "lessThanOrEqual": "6.17.*",
              "status": "unaffected",
              "version": "6.17.3",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.18",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                  "versionStartIncluding": "6.0",
                  "vulnerable": true
                },
                {
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                },
                {
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              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nvhost: vringh: Fix copy_to_iter return value check\n\nThe return value of copy_to_iter can\u0027t be negative, check whether the\ncopied length is equal to the requested length instead of checking for\nnegative values."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-12-01T06:17:04.464Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/bd71e7e0a612740e4de5524880c7cd40293af5f7"
        },
        {
          "url": "https://git.kernel.org/stable/c/781226e11d5bdea0d69c7b5aa3cda874093c73b8"
        },
        {
          "url": "https://git.kernel.org/stable/c/b3a950d236e98440c07405ba597b11bce56a8050"
        },
        {
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        },
        {
          "url": "https://git.kernel.org/stable/c/439263376c2c4e126cac0d07e4987568de4eaba5"
        }
      ],
      "title": "vhost: vringh: Fix copy_to_iter return value check",
      "x_generator": {
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-40056",
    "datePublished": "2025-10-28T11:48:30.249Z",
    "dateReserved": "2025-04-16T07:20:57.158Z",
    "dateUpdated": "2025-12-01T06:17:04.464Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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Detection rules are retrieved from Rulezet.