« Volver al listado

CVE-2026-72452

Estado: RecibidaAlta (7.8)—

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

drm/i915: clear CRTC color blob pointers after dropping refs

intel_crtc_put_color_blobs() drops the CRTC color blob references, but leaves the corresponding pointers unchanged.

This can matter in intel_crtc_prepare_cleared_state(), which frees the old CRTC hw state before calling intel_dp_tunnel_atomic_clear_stream_bw(). The latter can fail while looking up the DP tunnel group state, for example with -EDEADLK.

If that happens, the function returns without completing the cleared state preparation. The failed atomic state will then be cleared by the atomic core and intel_crtc_free_hw_state() can be called again for the same state, dropping the same blob references again.

Leer descripción completaMostrar menos

Clear the blob pointers after dropping the references so repeated cleanup of the same CRTC hw state is safe.

(cherry picked from commit d5005addb5f68e8a0edce249506757bdc9e3d8c8)

CVSS

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).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

Acceso local (AV:L) con PR:L sin interacción de usuario permite escalada de privilegios mediante race condition en limpieza de estado; DoS por doble liberación de referencias en blobs de color (UAF).

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Threat Intelligence ProgramFilter Network TrafficExecution PreventionApplication Isolation and SandboxingExploit ProtectionUpdate Software

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-2026-72452",
  "cveTags": [],
  "metrics": {
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.8,
          "attackVector": "LOCAL",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 1.8
      }
    ]
  },
  "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": "9a6cbb4a5c168e94a69a0cbec572b3738205232b",
              "lessThan": "164afa1a3af8e8c91b4a6d5fd7b79a44ec70abf0",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "8581466b827fdf0300a3e2e93900ddefd8240053",
              "lessThan": "2024940522ef451098c940ab0b82d647de5e5d9b",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "77fcf58df15edcf3f5b5421f24814fb72796def9",
              "lessThan": "ac554ad943610031a25795d6ef71316f6164c136",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "77fcf58df15edcf3f5b5421f24814fb72796def9",
              "lessThan": "31f077088e0faae6be8377741f356dea1b94ba46",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "674fc4a50b667be65c947d81af63a9367deafb5c",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "6.12.80",
              "lessThan": "6.12.97",
              "versionType": "semver"
            },
            {
              "status": "affected",
              "version": "6.18.21",
              "lessThan": "6.18.40",
              "versionType": "semver"
            },
            {
              "status": "affected",
              "version": "6.19.11",
              "lessThan": "6.20",
              "versionType": "semver"
            }
          ],
          "programFiles": [
            "drivers/gpu/drm/i915/display/intel_atomic.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "7.0"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "7.0",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "6.12.97",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "status": "unaffected",
              "version": "6.18.40",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "status": "unaffected",
              "version": "7.1.5",
              "versionType": "semver",
              "lessThanOrEqual": "7.1.*"
            },
            {
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "drivers/gpu/drm/i915/display/intel_atomic.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-08-15T06:22:19.183",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/164afa1a3af8e8c91b4a6d5fd7b79a44ec70abf0",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/2024940522ef451098c940ab0b82d647de5e5d9b",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/31f077088e0faae6be8377741f356dea1b94ba46",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/ac554ad943610031a25795d6ef71316f6164c136",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Received",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/i915: clear CRTC color blob pointers after dropping refs\n\nintel_crtc_put_color_blobs() drops the CRTC color blob references, but\nleaves the corresponding pointers unchanged.\n\nThis can matter in intel_crtc_prepare_cleared_state(), which frees the\nold CRTC hw state before calling intel_dp_tunnel_atomic_clear_stream_bw().\nThe latter can fail while looking up the DP tunnel group state, for\nexample with -EDEADLK.\n\nIf that happens, the function returns without completing the cleared\nstate preparation. The failed atomic state will then be cleared by the\natomic core and intel_crtc_free_hw_state() can be called again for the\nsame state, dropping the same blob references again.\n\nClear the blob pointers after dropping the references so repeated cleanup\nof the same CRTC hw state is safe.\n\n(cherry picked from commit d5005addb5f68e8a0edce249506757bdc9e3d8c8)"
    }
  ],
  "lastModified": "2026-08-17T06:19:12.797",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}