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CVE-2026-80915

Estado: RecibidaSin puntuar—

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

drm/xe: Fix DPT allocation paths.

Remove the fallback for VRAM to system memory, I tested it and that doesn't work at all, only a black screen with pipe fault errors were observed.

On systems with media GT, extra latency is added when accessing stolen memory when the GT is in MC6. Since we additionally aren't counting how much memory is used for stolen and we could in theory fill up the entire stolen area with DPT's, avoid using stolen and only use the default memory region.

Using stolen may also result in random system hangs under load.

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(cherry picked from commit a196406a3831291598fe8e73245914f7acffdfe0)

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-2026-80915",
  "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": "775d0adc01a55fe0458139330415d86bb3533efe",
              "lessThan": "491c499295fb0b90308b230b0a1075dcdf7f4d12",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "775d0adc01a55fe0458139330415d86bb3533efe",
              "lessThan": "f03415030579163f791c978741af7f1f2f6510b7",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "775d0adc01a55fe0458139330415d86bb3533efe",
              "lessThan": "c457e2c845ccbf2224386029f3da4937ba424db0",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "775d0adc01a55fe0458139330415d86bb3533efe",
              "lessThan": "fc648757908304aedbad74f74bf58192aec383db",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "4854ac2f88e2168ee4da2b152c6711772a8149aa",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "6.11.3",
              "lessThan": "6.12",
              "versionType": "semver"
            }
          ],
          "programFiles": [
            "drivers/gpu/drm/xe/display/xe_fb_pin.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.12"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "6.12",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "6.12.106",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "status": "unaffected",
              "version": "6.18.47",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "status": "unaffected",
              "version": "7.1.11",
              "versionType": "semver",
              "lessThanOrEqual": "7.1.*"
            },
            {
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "drivers/gpu/drm/xe/display/xe_fb_pin.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-09-09T17:17:46.390",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/491c499295fb0b90308b230b0a1075dcdf7f4d12",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/c457e2c845ccbf2224386029f3da4937ba424db0",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/f03415030579163f791c978741af7f1f2f6510b7",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/fc648757908304aedbad74f74bf58192aec383db",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Received",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/xe: Fix DPT allocation paths.\n\nRemove the fallback for VRAM to system memory, I tested it and that\ndoesn't work at all, only a black screen with pipe fault errors were\nobserved.\n\nOn systems with media GT, extra latency is added when accessing stolen\nmemory when the GT is in MC6. Since we additionally aren't counting how\nmuch memory is used for stolen and we could in theory fill up the\nentire stolen area with DPT's, avoid using stolen and only use the\ndefault memory region.\n\nUsing stolen may also result in random system hangs under load.\n\n(cherry picked from commit a196406a3831291598fe8e73245914f7acffdfe0)"
    }
  ],
  "lastModified": "2026-09-09T17:17:46.390",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}