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CVE-2026-90271

Estado: RecibidaSin puntuar—

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

arm_mpam: Fix a NULL pointer dereference on unbinding after an error interrupt

If a user unbinds an MSC after mpam_disable() has been run in response to an error interrupt then a dereference of a NULL pointer occurs as mpam_disable() sets the drvdata to NULL. Add an early return to the driver remove callback to avoid this.

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-2026-90271",
  "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": "f04046f2577a5c76167333ca99d3903ee5331ba0",
              "lessThan": "a29044c9c83513c7463de2adb84c169685562ad2",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "f04046f2577a5c76167333ca99d3903ee5331ba0",
              "lessThan": "fc996c39689bb15aa80e5366809434f7258fb703",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "drivers/resctrl/mpam_devices.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.19"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "6.19",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "7.2.6",
              "versionType": "semver",
              "lessThanOrEqual": "7.2.*"
            },
            {
              "status": "unaffected",
              "version": "7.3-rc1",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "drivers/resctrl/mpam_devices.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-09-17T17:17:23.677",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/a29044c9c83513c7463de2adb84c169685562ad2",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/fc996c39689bb15aa80e5366809434f7258fb703",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Received",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\narm_mpam: Fix a NULL pointer dereference on unbinding after an error interrupt\n\nIf a user unbinds an MSC after mpam_disable() has been run in response\nto an error interrupt then a dereference of a NULL pointer occurs as\nmpam_disable() sets the drvdata to NULL. Add an early return to the driver\nremove callback to avoid this."
    }
  ],
  "lastModified": "2026-09-17T17:17:23.677",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}