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CVE-2026-93215

Estado: RecibidaSin puntuar—

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

cdx: Fix double free when sysfs file creation fails

In cdx_create_res_attr(), if sysfs_create_bin_file() fails, the code frees res_attr but doesn't set cdx_dev->res_attr[num] to NULL. This leaves a dangling pointer in the array. Then cdx_destroy_res_attr() frees the already-freed memory. Fix the double free by initializing cdx_dev->res_attr[num] after sysfs_create_bin_file() completes.

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)

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{
  "id": "CVE-2026-93215",
  "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": "aeda33ab8160c7a2e24ba4f44492ad1e974ddc7d",
              "lessThan": "88f4cd42a04bdadd189d7f667a4c279f4e962ca6",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "aeda33ab8160c7a2e24ba4f44492ad1e974ddc7d",
              "lessThan": "4cd24873ab9fdbd730604881a6e8087bc7b99336",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "aeda33ab8160c7a2e24ba4f44492ad1e974ddc7d",
              "lessThan": "7e9451bf0bdba6daee1eaf4e7566612af6ca1c32",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "aeda33ab8160c7a2e24ba4f44492ad1e974ddc7d",
              "lessThan": "6f4acc3a3c300e174e3f586b97b04ed8f5948c36",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "drivers/cdx/cdx.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.8"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "6.8",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "6.12.109",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "status": "unaffected",
              "version": "6.18.50",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "status": "unaffected",
              "version": "7.2.4",
              "versionType": "semver",
              "lessThanOrEqual": "7.2.*"
            },
            {
              "status": "unaffected",
              "version": "7.3-rc1",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "drivers/cdx/cdx.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-09-24T16:17:16.550",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/4cd24873ab9fdbd730604881a6e8087bc7b99336",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/6f4acc3a3c300e174e3f586b97b04ed8f5948c36",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/7e9451bf0bdba6daee1eaf4e7566612af6ca1c32",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/88f4cd42a04bdadd189d7f667a4c279f4e962ca6",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Received",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncdx: Fix double free when sysfs file creation fails\n\nIn cdx_create_res_attr(), if sysfs_create_bin_file() fails, the code\nfrees res_attr but doesn't set cdx_dev->res_attr[num] to NULL. This\nleaves a dangling pointer in the array. Then cdx_destroy_res_attr()\nfrees the already-freed memory. Fix the double free by initializing\ncdx_dev->res_attr[num] after sysfs_create_bin_file() completes."
    }
  ],
  "lastModified": "2026-09-24T16:17:16.550",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}