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CVE-2026-64039

Estado: Pendiente de análisisAlta (7.7)—

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

drm/msm/snapshot: fix dumping of the unaligned regions

The snapshotting code internally aligns data segment to 16 bytes. This works fine for DPU code (where most of the regions are aligned), but fails for snapshotting of the DSI data (because DSI data region is shifted by 4 bytes). Fix the code by removing length alignment and by accurately printing last registers in the region. While reworking the code also fix the 16x memory overallocation in msm_disp_state_dump_regs().

Patchwork: https://patchwork.freedesktop.org/patch/725449/

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 sin interacción (AV:L/PR:N/UI:N) que permite acceso de lectura a memoria del kernel (C:H), escalada de privilegios potencial. T1068 por acceso local; T1005 por exfiltración de datos de memoria via snapshot.

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 ProgramExecution PreventionApplication Isolation and SandboxingExploit ProtectionUpdate SoftwareData Loss Prevention

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-2026-64039",
  "cveTags": [],
  "metrics": {
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.7,
          "attackVector": "LOCAL",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.2,
        "exploitabilityScore": 2.5
      }
    ]
  },
  "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": "98659487b845c05b6bed85d881713545db674c7c",
              "lessThan": "8fb070cf95847b29ef6cb15ec2c0de2bf4704676",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "98659487b845c05b6bed85d881713545db674c7c",
              "lessThan": "cecd34e046121d788a70b5c8b4f8a88916637953",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "98659487b845c05b6bed85d881713545db674c7c",
              "lessThan": "070e40acc59ef7bedba0314f59971ba87fcc8ab0",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "98659487b845c05b6bed85d881713545db674c7c",
              "lessThan": "1ef79be774706dddcfcace0331fa7ff32a73c73e",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "98659487b845c05b6bed85d881713545db674c7c",
              "lessThan": "cdd1aaf0ee962f50810b9aef7928f2313989d55f",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "98659487b845c05b6bed85d881713545db674c7c",
              "lessThan": "0c90ececfad3fc5c4c43a75ece0e2d736ab3def1",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "98659487b845c05b6bed85d881713545db674c7c",
              "lessThan": "76824d2467feb1828b745d6add2541918d7be3da",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "drivers/gpu/drm/msm/disp/msm_disp_snapshot_util.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.14"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "5.14",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "5.15.209",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "status": "unaffected",
              "version": "6.1.175",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "status": "unaffected",
              "version": "6.6.142",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "status": "unaffected",
              "version": "6.12.92",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "status": "unaffected",
              "version": "6.18.34",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "status": "unaffected",
              "version": "7.0.11",
              "versionType": "semver",
              "lessThanOrEqual": "7.0.*"
            },
            {
              "status": "unaffected",
              "version": "7.1",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "drivers/gpu/drm/msm/disp/msm_disp_snapshot_util.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-07-19T16:17:44.153",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/070e40acc59ef7bedba0314f59971ba87fcc8ab0",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/0c90ececfad3fc5c4c43a75ece0e2d736ab3def1",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/1ef79be774706dddcfcace0331fa7ff32a73c73e",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/76824d2467feb1828b745d6add2541918d7be3da",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/8fb070cf95847b29ef6cb15ec2c0de2bf4704676",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/cdd1aaf0ee962f50810b9aef7928f2313989d55f",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/cecd34e046121d788a70b5c8b4f8a88916637953",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Awaiting Analysis",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/msm/snapshot: fix dumping of the unaligned regions\n\nThe snapshotting code internally aligns data segment to 16 bytes. This\nworks fine for DPU code (where most of the regions are aligned), but\nfails for snapshotting of the DSI data (because DSI data region is\nshifted by 4 bytes). Fix the code by removing length alignment and by\naccurately printing last registers in the region. While reworking the\ncode also fix the 16x memory overallocation in\nmsm_disp_state_dump_regs().\n\nPatchwork: https://patchwork.freedesktop.org/patch/725449/"
    }
  ],
  "lastModified": "2026-07-30T14:59:47.950",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}