CVE-2025-40056

Full vulnerability record from the local CVENow database.

Description

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

Not scored

CVSS score

Not available

Vulnerability status

Deferred

Source identifier

416baaa9-dc9f-4396-8d5f-8c081fb06d67

Published

2025-10-28 12:15:39.907000

Last modified

2026-10-19 21:10:00.160000

View original CVE JSON

{
  "id": "CVE-2025-40056",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2025-10-28T12:15:39.907",
  "lastModified": "2026-10-19T21:10:00.160",
  "vulnStatus": "Deferred",
  "cveTags": [],
  "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't be negative, check whether the\ncopied length is equal to the requested length instead of checking for\nnegative values."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nvhost: vringh: Corrección de la comprobación del valor de retorno de copy_to_iter\n\nEl valor de retorno de copy_to_iter no puede ser negativo; compruebe si la longitud copiada es igual a la longitud solicitada en lugar de comprobar valores negativos."
    }
  ],
  "affected": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "affectedData": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "programFiles": [
            "drivers/vhost/vringh.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "versions": [
            {
              "version": "309bba39c945ac8ab8083ac05cd6cfe5822968e0",
              "lessThan": "bd71e7e0a612740e4de5524880c7cd40293af5f7",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "309bba39c945ac8ab8083ac05cd6cfe5822968e0",
              "lessThan": "781226e11d5bdea0d69c7b5aa3cda874093c73b8",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "309bba39c945ac8ab8083ac05cd6cfe5822968e0",
              "lessThan": "b3a950d236e98440c07405ba597b11bce56a8050",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "309bba39c945ac8ab8083ac05cd6cfe5822968e0",
              "lessThan": "68aac2b335d474b938d154b9c95cbc58838cb2ce",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "309bba39c945ac8ab8083ac05cd6cfe5822968e0",
              "lessThan": "439263376c2c4e126cac0d07e4987568de4eaba5",
              "versionType": "git",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "programFiles": [
            "drivers/vhost/vringh.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "versions": [
            {
              "version": "6.0",
              "status": "affected"
            },
            {
              "version": "0",
              "lessThan": "6.0",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.1.156",
              "lessThanOrEqual": "6.1.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.6.112",
              "lessThanOrEqual": "6.6.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.12.53",
              "lessThanOrEqual": "6.12.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.17.3",
              "lessThanOrEqual": "6.17.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.18",
              "lessThanOrEqual": "*",
              "versionType": "original_commit_for_fix",
              "status": "unaffected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {},
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/439263376c2c4e126cac0d07e4987568de4eaba5",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/68aac2b335d474b938d154b9c95cbc58838cb2ce",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/781226e11d5bdea0d69c7b5aa3cda874093c73b8",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/b3a950d236e98440c07405ba597b11bce56a8050",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/bd71e7e0a612740e4de5524880c7cd40293af5f7",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ]
}