« Volver al listado

CVE-2025-68239

Estado: AplazadaSin puntuar—

In the Linux kernel, the following vulnerability has been resolved:

binfmt_misc: restore write access before closing files opened by open_exec()

bm_register_write() opens an executable file using open_exec(), which internally calls do_open_execat() and denies write access on the file to avoid modification while it is being executed.

However, when an error occurs, bm_register_write() closes the file using filp_close() directly. This does not restore the write permission, which may cause subsequent write operations on the same file to fail.

Fix this by calling exe_file_allow_write_access() before filp_close() to restore the write permission properly.

CVSS

NVD no ha asignado puntuación CVSS a esta CVE (habitual desde el cambio de política de abril de 2026).

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

Linux — Linux KernelAI

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2025-68239",
  "cveTags": [],
  "metrics": {},
  "affected": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "affectedData": [
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "e7850f4d844e0acfac7e570af611d89deade3146",
              "lessThan": "54274ff90488b6c0f595a6518faed3cf0bc966eb",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "e7850f4d844e0acfac7e570af611d89deade3146",
              "lessThan": "480ac88431703f2adbb8e6b5bd73c3f3cf9f3d7f",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "e7850f4d844e0acfac7e570af611d89deade3146",
              "lessThan": "fbab8c08e1a6dbaef81e22d672a7647553101d16",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "e7850f4d844e0acfac7e570af611d89deade3146",
              "lessThan": "6cce7bc7fac8471c832696720d9c8f2a976d9c54",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "e7850f4d844e0acfac7e570af611d89deade3146",
              "lessThan": "e785f552ab04dbca01d31f0334f4561240b04459",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "e7850f4d844e0acfac7e570af611d89deade3146",
              "lessThan": "90f601b497d76f40fa66795c3ecf625b6aced9fd",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "467a50d5db7deaf656e18a1f633be9ecd94b393a",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "4a8b4124ea4156ca52918b66c750a69c6d932aa5",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "3fe116e33a855bbfdd32dc207e9be2a41e3ed3a6",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "c0e0ab60d0b15469e69db93215dad009999f5a5b",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "5ab9464a2a3c538eedbb438f1802f2fd98d0953f",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "d28492be82e19fc69cc69975fc2052b37ef0c821",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "4.9.262",
              "lessThan": "4.10",
              "versionType": "semver"
            },
            {
              "status": "affected",
              "version": "4.14.226",
              "lessThan": "4.15",
              "versionType": "semver"
            },
            {
              "status": "affected",
              "version": "4.19.181",
              "lessThan": "4.20",
              "versionType": "semver"
            },
            {
              "status": "affected",
              "version": "5.4.106",
              "lessThan": "5.5",
              "versionType": "semver"
            },
            {
              "status": "affected",
              "version": "5.10.24",
              "lessThan": "5.11",
              "versionType": "semver"
            },
            {
              "status": "affected",
              "version": "5.11.7",
              "lessThan": "5.12",
              "versionType": "semver"
            }
          ],
          "programFiles": [
            "fs/binfmt_misc.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.12"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "5.12",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "5.15.209",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "status": "unaffected",
              "version": "6.1.167",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "status": "unaffected",
              "version": "6.6.130",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "status": "unaffected",
              "version": "6.12.78",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "status": "unaffected",
              "version": "6.17.9",
              "versionType": "semver",
              "lessThanOrEqual": "6.17.*"
            },
            {
              "status": "unaffected",
              "version": "6.18",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "fs/binfmt_misc.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2025-12-16T15:15:53.063",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/480ac88431703f2adbb8e6b5bd73c3f3cf9f3d7f",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/54274ff90488b6c0f595a6518faed3cf0bc966eb",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/6cce7bc7fac8471c832696720d9c8f2a976d9c54",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/90f601b497d76f40fa66795c3ecf625b6aced9fd",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/e785f552ab04dbca01d31f0334f4561240b04459",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/fbab8c08e1a6dbaef81e22d672a7647553101d16",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Deferred",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbinfmt_misc: restore write access before closing files opened by open_exec()\n\nbm_register_write() opens an executable file using open_exec(), which\ninternally calls do_open_execat() and denies write access on the file to\navoid modification while it is being executed.\n\nHowever, when an error occurs, bm_register_write() closes the file using\nfilp_close() directly. This does not restore the write permission, which\nmay cause subsequent write operations on the same file to fail.\n\nFix this by calling exe_file_allow_write_access() before filp_close() to\nrestore the write permission properly."
    }
  ],
  "lastModified": "2026-06-17T09:58:47.200",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}