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CVE-2025-40023

Estado: AplazadaSin puntuar—

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

drm/xe/vf: Don't expose sysfs attributes not applicable for VFs

VFs can't read BMG_PCIE_CAP(0x138340) register nor access PCODE (already guarded by the info.skip_pcode flag) so we shouldn't expose attributes that require any of them to avoid errors like:

(cherry picked from commit a2d6223d224f333f705ed8495bf8bebfbc585c35)

Detalles técnicos trazas, registros y código del informe original
 [] xe 0000:03:00.1: [drm] Tile0: GT0: VF is trying to read an \
                     inaccessible register 0x138340+0x0
 [] RIP: 0010:xe_gt_sriov_vf_read32+0x6c2/0x9a0 [xe]
 [] Call Trace:
 []  xe_mmio_read32+0x110/0x280 [xe]
 []  auto_link_downgrade_capable_show+0x2e/0x70 [xe]
 []  dev_attr_show+0x1a/0x70
 []  sysfs_kf_seq_show+0xaa/0x120
 []  kernfs_seq_show+0x41/0x60

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-2025-40023",
  "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": "0e414bf7ad012e55c8a0aa4e91f68cb1cf5801ff",
              "lessThan": "bacbadedbba737da8ae6e0464bc0971c30cda4cb",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "0e414bf7ad012e55c8a0aa4e91f68cb1cf5801ff",
              "lessThan": "500dad428e5b0de4c1bdfa893822a6e06ddad0b5",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "drivers/gpu/drm/xe/xe_device_sysfs.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.16"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "6.16",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "6.16.10",
              "versionType": "semver",
              "lessThanOrEqual": "6.16.*"
            },
            {
              "status": "unaffected",
              "version": "6.17",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "drivers/gpu/drm/xe/xe_device_sysfs.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2025-10-24T13:15:47.510",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/500dad428e5b0de4c1bdfa893822a6e06ddad0b5",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/bacbadedbba737da8ae6e0464bc0971c30cda4cb",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Deferred",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/xe/vf: Don't expose sysfs attributes not applicable for VFs\n\nVFs can't read BMG_PCIE_CAP(0x138340) register nor access PCODE\n(already guarded by the info.skip_pcode flag) so we shouldn't\nexpose attributes that require any of them to avoid errors like:\n\n [] xe 0000:03:00.1: [drm] Tile0: GT0: VF is trying to read an \\\n                     inaccessible register 0x138340+0x0\n [] RIP: 0010:xe_gt_sriov_vf_read32+0x6c2/0x9a0 [xe]\n [] Call Trace:\n []  xe_mmio_read32+0x110/0x280 [xe]\n []  auto_link_downgrade_capable_show+0x2e/0x70 [xe]\n []  dev_attr_show+0x1a/0x70\n []  sysfs_kf_seq_show+0xaa/0x120\n []  kernfs_seq_show+0x41/0x60\n\n(cherry picked from commit a2d6223d224f333f705ed8495bf8bebfbc585c35)"
    }
  ],
  "lastModified": "2026-06-17T09:21:08.260",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}