CVE-2025-40036

Full vulnerability record from the local CVENow database.

Description

In the Linux kernel, the following vulnerability has been resolved: misc: fastrpc: fix possible map leak in fastrpc_put_args copy_to_user() failure would cause an early return without cleaning up the fdlist, which has been updated by the DSP. This could lead to map leak. Fix this by redirecting to a cleanup path on failure, ensuring that all mapped buffers are properly released before returning.

Severity

Not scored

CVSS score

Not available

Vulnerability status

Deferred

Source identifier

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

Published

2025-10-28 12:15:37.487000

Last modified

2026-10-19 21:10:00.160000

View original CVE JSON

{
  "id": "CVE-2025-40036",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2025-10-28T12:15:37.487",
  "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\nmisc: fastrpc: fix possible map leak in fastrpc_put_args\n\ncopy_to_user() failure would cause an early return without cleaning up\nthe fdlist, which has been updated by the DSP. This could lead to map\nleak. Fix this by redirecting to a cleanup path on failure, ensuring\nthat all mapped buffers are properly released before returning."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nvarios: fastrpc: corrige posible fuga de mapeo en fastrpc_put_args\n\nUn fallo de copy_to_user() causaría un retorno temprano sin limpiar la fdlist, que ha sido actualizada por el DSP. Esto podría llevar a una fuga de mapeo. Esto se soluciona redirigiendo a una ruta de limpieza en caso de fallo, asegurando que todos los búferes mapeados sean liberados correctamente antes de retornar."
    }
  ],
  "affected": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "affectedData": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "programFiles": [
            "drivers/misc/fastrpc.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "versions": [
            {
              "version": "c68cfb718c8f97b7f7a50ed66be5feb42d0c8988",
              "lessThan": "a085658264d0c8d4f795d4631f77d7289a021de9",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "c68cfb718c8f97b7f7a50ed66be5feb42d0c8988",
              "lessThan": "3ad42dc66445df6977cf4be0c06f1a655299ce6c",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "c68cfb718c8f97b7f7a50ed66be5feb42d0c8988",
              "lessThan": "78d33a041555db03903e8037fd053ed74fbd88cb",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "c68cfb718c8f97b7f7a50ed66be5feb42d0c8988",
              "lessThan": "c000f65f0ac93d9f9cc69a230d372f6ca93e4879",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "c68cfb718c8f97b7f7a50ed66be5feb42d0c8988",
              "lessThan": "da1ba64176e0138f2bfa96f9e43e8c3640d01e1e",
              "versionType": "git",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "programFiles": [
            "drivers/misc/fastrpc.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "versions": [
            {
              "version": "5.1",
              "status": "affected"
            },
            {
              "version": "0",
              "lessThan": "5.1",
              "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/3ad42dc66445df6977cf4be0c06f1a655299ce6c",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/78d33a041555db03903e8037fd053ed74fbd88cb",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/a085658264d0c8d4f795d4631f77d7289a021de9",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/c000f65f0ac93d9f9cc69a230d372f6ca93e4879",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/da1ba64176e0138f2bfa96f9e43e8c3640d01e1e",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ]
}