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CVE-2026-74417

Estado: RecibidaAlta (7.8)—

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

drm/radeon: fix integer overflow in radeon_align_pitch()

radeon_align_pitch() has the same kind of overflow issue as the old amdgpu helper: both the alignment round-up add and the final 'aligned * cpp' calculation can overflow signed int.

If that wraps, radeon_mode_dumb_create() can end up returning an invalid pitch or creating a zero-sized dumb buffer.

Fix this by using check_add_overflow() for the alignment round-up and check_mul_overflow() for the final pitch calculation, returning 0 on overflow. Also reject zero pitch and size in radeon_mode_dumb_create().

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Found via AST-based call-graph analysis using sqry.

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.

Desbordamiento de enteros en kernel Linux (acceso local, PR:L) permite DoS o corrupción de memoria; vector AV:L/PR:L/UI:N sin interacción del usuario indica escalada local.

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 ProgramRestrict File and Directory PermissionsRemote Data StorageFilter Network TrafficExecution PreventionEncrypt Sensitive Information

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-2026-74417",
  "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": "ff72145badb834e8051719ea66e024784d000cb4",
              "lessThan": "b7b44937c548c2c987fcdd129f8896741004bed6",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "ff72145badb834e8051719ea66e024784d000cb4",
              "lessThan": "415bb9893e249e46aa5159f7363a11512cf06fa9",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "ff72145badb834e8051719ea66e024784d000cb4",
              "lessThan": "d9dfa176899d488e48bb7342d2c43ddd36e66318",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "ff72145badb834e8051719ea66e024784d000cb4",
              "lessThan": "dfc7b5b5599472277e71e5bd2712740651c7c5be",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "ff72145badb834e8051719ea66e024784d000cb4",
              "lessThan": "ce3b24eb3ee8f82de851535f516bf21f83e82259",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "drivers/gpu/drm/radeon/radeon_gem.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "2.6.39"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "2.6.39",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "6.6.145",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "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/radeon/radeon_gem.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-08-15T06:22:43.807",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/415bb9893e249e46aa5159f7363a11512cf06fa9",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/b7b44937c548c2c987fcdd129f8896741004bed6",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/ce3b24eb3ee8f82de851535f516bf21f83e82259",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/d9dfa176899d488e48bb7342d2c43ddd36e66318",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/dfc7b5b5599472277e71e5bd2712740651c7c5be",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Received",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/radeon: fix integer overflow in radeon_align_pitch()\n\nradeon_align_pitch() has the same kind of overflow issue as the old\namdgpu helper: both the alignment round-up add and the final\n'aligned * cpp' calculation can overflow signed int.\n\nIf that wraps, radeon_mode_dumb_create() can end up returning an\ninvalid pitch or creating a zero-sized dumb buffer.\n\nFix this by using check_add_overflow() for the alignment round-up and\ncheck_mul_overflow() for the final pitch calculation, returning 0 on\noverflow. Also reject zero pitch and size in\nradeon_mode_dumb_create().\n\nFound via AST-based call-graph analysis using sqry."
    }
  ],
  "lastModified": "2026-08-17T06:19:37.167",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}