FKIE_CVE-2025-40023

Vulnerability from fkie_nvd - Published: 2025-10-24 13:15 - Updated: 2026-10-19 21:10
Severity
Summary
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: [] 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 (cherry picked from commit a2d6223d224f333f705ed8495bf8bebfbc585c35)
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/500dad428e5b0de4c1bdfa893822a6e06ddad0b5
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/bacbadedbba737da8ae6e0464bc0971c30cda4cb
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/xe/xe_device_sysfs.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "bacbadedbba737da8ae6e0464bc0971c30cda4cb",
              "status": "affected",
              "version": "0e414bf7ad012e55c8a0aa4e91f68cb1cf5801ff",
              "versionType": "git"
            },
            {
              "lessThan": "500dad428e5b0de4c1bdfa893822a6e06ddad0b5",
              "status": "affected",
              "version": "0e414bf7ad012e55c8a0aa4e91f68cb1cf5801ff",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/xe/xe_device_sysfs.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.16"
            },
            {
              "lessThan": "6.16",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.16.*",
              "status": "unaffected",
              "version": "6.16.10",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.17",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/xe/vf: Don\u0027t expose sysfs attributes not applicable for VFs\n\nVFs can\u0027t read BMG_PCIE_CAP(0x138340) register nor access PCODE\n(already guarded by the info.skip_pcode flag) so we shouldn\u0027t\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)"
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\ndrm/xe/vf: No exponer atributos sysfs no aplicables para VFs\n\nLos VFs no pueden leer el registro BMG_PCIE_CAP(0x138340) ni acceder a PCODE (ya protegido por la bandera info.skip_pcode), por lo que no deber\u00edamos exponer atributos que requieran cualquiera de ellos para evitar errores como:\n\n [] xe 0000:03:00.1: [drm] Tile0: GT0: VF est\u00e1 intentando leer un \\\n                     registro inaccesible 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(seleccionado de la confirmaci\u00f3n a2d6223d224f333f705ed8495bf8bebfbc585c35)"
    }
  ],
  "id": "CVE-2025-40023",
  "lastModified": "2026-10-19T21:10:00.160",
  "metrics": {},
  "published": "2025-10-24T13:15:47.510",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/500dad428e5b0de4c1bdfa893822a6e06ddad0b5"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/bacbadedbba737da8ae6e0464bc0971c30cda4cb"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Deferred"
}



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