CVE-2025-40051 (GCVE-0-2025-40051)

Vulnerability from cvelistv5 – Published: 2025-10-28 11:48 – Updated: 2025-12-01 06:16
VLAI?
Summary
In the Linux kernel, the following vulnerability has been resolved: vhost: vringh: Modify the return value check The return value of copy_from_iter and copy_to_iter can't be negative, check whether the copied lengths are equal.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 309bba39c945ac8ab8083ac05cd6cfe5822968e0 , < db042925a5ab7a550b710addeadbf6f72e3a8a4b (git)
Affected: 309bba39c945ac8ab8083ac05cd6cfe5822968e0 , < 78dc7362662fedaa1928fb8e4f27401c8322905d (git)
Affected: 309bba39c945ac8ab8083ac05cd6cfe5822968e0 , < baa37b1c7e29546f79c39bef0d18c4edc9f39bb1 (git)
Affected: 309bba39c945ac8ab8083ac05cd6cfe5822968e0 , < cfa0654402c06d086201a9ff167eb95da5844fc3 (git)
Affected: 309bba39c945ac8ab8083ac05cd6cfe5822968e0 , < 82a8d0fda55b35361ee7f35b54fa2b66d7847d2b (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": {
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      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/vhost/vringh.c"
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          "vendor": "Linux",
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            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.18",
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        }
      ],
      "cpeApplicability": [
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          "nodes": [
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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\nvhost: vringh: Modify the return value check\n\nThe return value of copy_from_iter and copy_to_iter can\u0027t be negative,\ncheck whether the copied lengths are equal."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-12-01T06:16:57.675Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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      "references": [
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          "url": "https://git.kernel.org/stable/c/78dc7362662fedaa1928fb8e4f27401c8322905d"
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        },
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        {
          "url": "https://git.kernel.org/stable/c/82a8d0fda55b35361ee7f35b54fa2b66d7847d2b"
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      "title": "vhost: vringh: Modify the return value check",
      "x_generator": {
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-40051",
    "datePublished": "2025-10-28T11:48:27.279Z",
    "dateReserved": "2025-04-16T07:20:57.157Z",
    "dateUpdated": "2025-12-01T06:16:57.675Z",
    "state": "PUBLISHED"
  },
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  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
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  }
}


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Sightings

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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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