CVE-2025-40023 (GCVE-0-2025-40023)

Vulnerability from cvelistv5 – Published: 2025-10-24 12:24 – Updated: 2026-05-11 21:40
VLAI
Title
drm/xe/vf: Don't expose sysfs attributes not applicable for VFs
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)
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 0e414bf7ad012e55c8a0aa4e91f68cb1cf5801ff , < bacbadedbba737da8ae6e0464bc0971c30cda4cb (git)
Affected: 0e414bf7ad012e55c8a0aa4e91f68cb1cf5801ff , < 500dad428e5b0de4c1bdfa893822a6e06ddad0b5 (git)
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Linux Linux Affected: 6.16
Unaffected: 0 , < 6.16 (semver)
Unaffected: 6.16.10 , ≤ 6.16.* (semver)
Unaffected: 6.17 , ≤ * (original_commit_for_fix)
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "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": [
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              "versionType": "git"
            },
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              "status": "affected",
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              "versionType": "git"
            }
          ]
        },
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          "product": "Linux",
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          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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            },
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              "versionType": "semver"
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              "version": "6.16.10",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
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              "version": "6.17",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.16.10",
                  "versionStartIncluding": "6.16",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.17",
                  "versionStartIncluding": "6.16",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "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)"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T21:40:59.219Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/bacbadedbba737da8ae6e0464bc0971c30cda4cb"
        },
        {
          "url": "https://git.kernel.org/stable/c/500dad428e5b0de4c1bdfa893822a6e06ddad0b5"
        }
      ],
      "title": "drm/xe/vf: Don\u0027t expose sysfs attributes not applicable for VFs",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-40023",
    "datePublished": "2025-10-24T12:24:58.554Z",
    "dateReserved": "2025-04-16T07:20:57.152Z",
    "dateUpdated": "2026-05-11T21:40:59.219Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2025-40023",
      "date": "2026-07-14",
      "epss": "0.00168",
      "percentile": "0.06439"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2025-40023\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-10-24T13:15:47.510\",\"lastModified\":\"2026-06-17T09:21:08.260\",\"vulnStatus\":\"Deferred\",\"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)\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"drivers/gpu/drm/xe/xe_device_sysfs.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"0e414bf7ad012e55c8a0aa4e91f68cb1cf5801ff\",\"lessThan\":\"bacbadedbba737da8ae6e0464bc0971c30cda4cb\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"0e414bf7ad012e55c8a0aa4e91f68cb1cf5801ff\",\"lessThan\":\"500dad428e5b0de4c1bdfa893822a6e06ddad0b5\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"drivers/gpu/drm/xe/xe_device_sysfs.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"6.16\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"6.16\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.16.10\",\"lessThanOrEqual\":\"6.16.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.17\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]}],\"metrics\":{},\"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\"}]}}",
    "redhat_vex": {
      "aggregate_severity": "None",
      "current_release_date": "2026-06-30T10:34:07+00:00",
      "cve": "CVE-2025-40023",
      "id": "CVE-2025-40023",
      "initial_release_date": "2025-10-24T00:00:00+00:00",
      "product_status:known_not_affected": "274",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: drm/xe/vf: Don\u0027t expose sysfs attributes not applicable for VFs",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-40023.json",
      "version": "3"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.