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CVE-2026-80728

Estado: RecibidaSin puntuar—

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

Revert "drm/amdgpu: fix aperture mapping leak"

devres teardown is LIFO. The aperture devres node was registered after the DRM device node, so devres_release_all() unmaps the aperture before the DRM device release callback fires amdgpu_device_fini_sw(). IP sw_fini callbacks (e.g. vcn_v4_0_sw_fini) write to fw_shared through a pointer derived from aper_base_kaddr, causing a kernel page fault on probe failure / rollback:

This reverts commit d871e99879cb5fd1fa798b006b4888887e63a17a.

(cherry picked from commit 336e0cd576817ac64a4b394ca2b3680029f3e37f)

Detalles técnicos trazas, registros y código del informe original
  BUG: unable to handle page fault ... PMD 0
  RIP: vcn_v4_0_sw_fini+0x7b/0x170 [amdgpu]
  Call Trace:
    amdgpu_device_fini_sw
    amdgpu_driver_release_kms
    devm_drm_dev_init_release
    devres_release_all

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)

Mostrar
{
  "id": "CVE-2026-80728",
  "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": "67bc3647e418e23dc0d17604bdba634a73de809f",
              "lessThan": "7380f1bfe9d7ed3a4ca9d99a5c4df840fff9af2a",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "a343d028ad6c174da8dc6af560c51e6d140a6727",
              "lessThan": "96d26143882f9cb47dcc1f3dd4e26d047e53ab9b",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "6405c4e75b3bcf0e72bd7a0ff5f1ed0c475e23aa",
              "lessThan": "a2e326c52c4bcecc033cd3ca2733fdbe30fbf55d",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "f5988b5c300a32ff751724ffd33d5a8d5873e4a7",
              "lessThan": "496846a9411136eb9e86ad4f4e62d751bd1e1db5",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "ea772a440d56b285f4d491affac50ecd41f6b402",
              "lessThan": "b96c529cd2551b78316a4afa3237b2ed96ba03c8",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "drivers/gpu/drm/amd/amdgpu/amdgpu_device.c",
            "drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.6.148",
              "lessThan": "6.6.152",
              "versionType": "semver"
            },
            {
              "status": "affected",
              "version": "6.12.101",
              "lessThan": "6.12.104",
              "versionType": "semver"
            },
            {
              "status": "affected",
              "version": "6.18.42",
              "lessThan": "6.18.45",
              "versionType": "semver"
            },
            {
              "status": "affected",
              "version": "7.1.6",
              "lessThan": "7.1.9",
              "versionType": "semver"
            }
          ],
          "programFiles": [
            "drivers/gpu/drm/amd/amdgpu/amdgpu_device.c",
            "drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c"
          ],
          "defaultStatus": "unaffected"
        }
      ]
    }
  ],
  "published": "2026-09-03T13:06:11.297",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/496846a9411136eb9e86ad4f4e62d751bd1e1db5",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/7380f1bfe9d7ed3a4ca9d99a5c4df840fff9af2a",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/96d26143882f9cb47dcc1f3dd4e26d047e53ab9b",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/a2e326c52c4bcecc033cd3ca2733fdbe30fbf55d",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/b96c529cd2551b78316a4afa3237b2ed96ba03c8",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Received",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nRevert \"drm/amdgpu: fix aperture mapping leak\"\n\ndevres teardown is LIFO. The aperture devres node was registered after\nthe DRM device node, so devres_release_all() unmaps the aperture before\nthe DRM device release callback fires amdgpu_device_fini_sw(). IP\nsw_fini callbacks (e.g. vcn_v4_0_sw_fini) write to fw_shared through a\npointer derived from aper_base_kaddr, causing a kernel page fault on\nprobe failure / rollback:\n\n  BUG: unable to handle page fault ... PMD 0\n  RIP: vcn_v4_0_sw_fini+0x7b/0x170 [amdgpu]\n  Call Trace:\n    amdgpu_device_fini_sw\n    amdgpu_driver_release_kms\n    devm_drm_dev_init_release\n    devres_release_all\n\nThis reverts commit d871e99879cb5fd1fa798b006b4888887e63a17a.\n\n(cherry picked from commit 336e0cd576817ac64a4b394ca2b3680029f3e37f)"
    }
  ],
  "lastModified": "2026-09-29T13:17:52.727",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}