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CVE-2026-93192

Estado: RecibidaAlta (7.8)—

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

drm/v3d: Clear queue->active_job when v3d_fence_create() fails

The run_job() callbacks for BIN, RENDER, TFU and CSD assign the incoming job to queue->active_job before calling v3d_fence_create(). If v3d_fence_create() fails, the callback returns NULL without clearing active_job, leaving a dangling pointer.

Create a failure path in all run_job() callbacks that clears the active job before returning NULL. The BIN path takes queue->queue_lock around the clear as it races against v3d_overflow_mem_work(); RENDER, TFU and CSD paths have no concurrent reader, so the clear is lock-free.

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.

Vulnerabilidad local (AV:L, PR:L) en kernel que provoca dangling pointer tras fallar v3d_fence_create(), permitiendo escalada de privilegios (C:H, I:H, A:H) y potencial DoS o ejecución elevada.

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

Execution PreventionUpdate SoftwareUser Account ManagementThreat Intelligence ProgramRestrict File and Directory PermissionsPrivileged Account Management

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-2026-93192",
  "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": "a783a09ee76d6259296dc6aeea2b6884fa526980",
              "lessThan": "bdeb73d7312100e00c3e643ff233f09b6ec114aa",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "a783a09ee76d6259296dc6aeea2b6884fa526980",
              "lessThan": "3a8aa74859dd73eaa76c55eb74da708e56ef51c5",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "a783a09ee76d6259296dc6aeea2b6884fa526980",
              "lessThan": "0b9878aba5cf93bc2b55ba9eb807757ce3239bec",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "a783a09ee76d6259296dc6aeea2b6884fa526980",
              "lessThan": "25a1669907512e927fab9ad4d4fb74ff57f63cd9",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "drivers/gpu/drm/v3d/v3d_sched.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.3"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "5.3",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "6.12.110",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "status": "unaffected",
              "version": "6.18.52",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "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/gpu/drm/v3d/v3d_sched.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-09-17T17:18:15.447",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/0b9878aba5cf93bc2b55ba9eb807757ce3239bec",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/25a1669907512e927fab9ad4d4fb74ff57f63cd9",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/3a8aa74859dd73eaa76c55eb74da708e56ef51c5",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/bdeb73d7312100e00c3e643ff233f09b6ec114aa",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Received",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/v3d: Clear queue->active_job when v3d_fence_create() fails\n\nThe run_job() callbacks for BIN, RENDER, TFU and CSD assign the incoming\njob to queue->active_job before calling v3d_fence_create(). If\nv3d_fence_create() fails, the callback returns NULL without clearing\nactive_job, leaving a dangling pointer.\n\nCreate a failure path in all run_job() callbacks that clears the active\njob before returning NULL. The BIN path takes queue->queue_lock around the\nclear as it races against v3d_overflow_mem_work(); RENDER, TFU and CSD\npaths have no concurrent reader, so the clear is lock-free."
    }
  ],
  "lastModified": "2026-09-18T18:18:24.610",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}