Vulnerability-Lookup

CVE-2026-23466 (GCVE-0-2026-23466)

Vulnerability from cvelistv5 – Published: 2026-04-03 15:15 – Updated: 2026-04-13 06:08

Title

drm/xe: Open-code GGTT MMIO access protection

Summary

In the Linux kernel, the following vulnerability has been resolved: drm/xe: Open-code GGTT MMIO access protection GGTT MMIO access is currently protected by hotplug (drm_dev_enter), which works correctly when the driver loads successfully and is later unbound or unloaded. However, if driver load fails, this protection is insufficient because drm_dev_unplug() is never called. Additionally, devm release functions cannot guarantee that all BOs with GGTT mappings are destroyed before the GGTT MMIO region is removed, as some BOs may be freed asynchronously by worker threads. To address this, introduce an open-coded flag, protected by the GGTT lock, that guards GGTT MMIO access. The flag is cleared during the dev_fini_ggtt devm release function to ensure MMIO access is disabled once teardown begins. (cherry picked from commit 4f3a998a173b4325c2efd90bdadc6ccd3ad9a431)

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/e2b424aadecb640f9…
	https://git.kernel.org/stable/c/1e9e2640d870d4837…
	https://git.kernel.org/stable/c/76326dc06d8793c2c…
	https://git.kernel.org/stable/c/01f2557aa684e5140…

Impacted products

Vendor

Product

Version

Linux

Affected: 919bb54e989c1edef87e9797be125c94c450fc65 , < e2b424aadecb640f9e037b2891191cf8fd4c64cf (git)
Affected: 919bb54e989c1edef87e9797be125c94c450fc65 , < 1e9e2640d870d4837bcfdc220cb2c99ae5ee119f (git)
Affected: 919bb54e989c1edef87e9797be125c94c450fc65 , < 76326dc06d8793c2c81c31cc0115dbc348de2f88 (git)
Affected: 919bb54e989c1edef87e9797be125c94c450fc65 , < 01f2557aa684e514005541e71a3d01f4cd45c170 (git)

Linux

Affected: 6.12
Unaffected: 0 , < 6.12 (semver)
Unaffected: 6.12.78 , ≤ 6.12.* (semver)
Unaffected: 6.18.20 , ≤ 6.18.* (semver)
Unaffected: 6.19.10 , ≤ 6.19.* (semver)
Unaffected: 7.0 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/xe/xe_ggtt.c",
            "drivers/gpu/drm/xe/xe_ggtt_types.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "e2b424aadecb640f9e037b2891191cf8fd4c64cf",
              "status": "affected",
              "version": "919bb54e989c1edef87e9797be125c94c450fc65",
              "versionType": "git"
            },
            {
              "lessThan": "1e9e2640d870d4837bcfdc220cb2c99ae5ee119f",
              "status": "affected",
              "version": "919bb54e989c1edef87e9797be125c94c450fc65",
              "versionType": "git"
            },
            {
              "lessThan": "76326dc06d8793c2c81c31cc0115dbc348de2f88",
              "status": "affected",
              "version": "919bb54e989c1edef87e9797be125c94c450fc65",
              "versionType": "git"
            },
            {
              "lessThan": "01f2557aa684e514005541e71a3d01f4cd45c170",
              "status": "affected",
              "version": "919bb54e989c1edef87e9797be125c94c450fc65",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/xe/xe_ggtt.c",
            "drivers/gpu/drm/xe/xe_ggtt_types.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.12"
            },
            {
              "lessThan": "6.12",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.78",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.20",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.19.*",
              "status": "unaffected",
              "version": "6.19.10",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.0",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.78",
                  "versionStartIncluding": "6.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.20",
                  "versionStartIncluding": "6.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.19.10",
                  "versionStartIncluding": "6.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.0",
                  "versionStartIncluding": "6.12",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/xe: Open-code GGTT MMIO access protection\n\nGGTT MMIO access is currently protected by hotplug (drm_dev_enter),\nwhich works correctly when the driver loads successfully and is later\nunbound or unloaded. However, if driver load fails, this protection is\ninsufficient because drm_dev_unplug() is never called.\n\nAdditionally, devm release functions cannot guarantee that all BOs with\nGGTT mappings are destroyed before the GGTT MMIO region is removed, as\nsome BOs may be freed asynchronously by worker threads.\n\nTo address this, introduce an open-coded flag, protected by the GGTT\nlock, that guards GGTT MMIO access. The flag is cleared during the\ndev_fini_ggtt devm release function to ensure MMIO access is disabled\nonce teardown begins.\n\n(cherry picked from commit 4f3a998a173b4325c2efd90bdadc6ccd3ad9a431)"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-04-13T06:08:01.226Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/e2b424aadecb640f9e037b2891191cf8fd4c64cf"
        },
        {
          "url": "https://git.kernel.org/stable/c/1e9e2640d870d4837bcfdc220cb2c99ae5ee119f"
        },
        {
          "url": "https://git.kernel.org/stable/c/76326dc06d8793c2c81c31cc0115dbc348de2f88"
        },
        {
          "url": "https://git.kernel.org/stable/c/01f2557aa684e514005541e71a3d01f4cd45c170"
        }
      ],
      "title": "drm/xe: Open-code GGTT MMIO access protection",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-23466",
    "datePublished": "2026-04-03T15:15:45.754Z",
    "dateReserved": "2026-01-13T15:37:46.021Z",
    "dateUpdated": "2026-04-13T06:08:01.226Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-23466",
      "date": "2026-04-14",
      "epss": "0.00023",
      "percentile": "0.06204"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-23466\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2026-04-03T16:16:34.017\",\"lastModified\":\"2026-04-07T13:20:55.200\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\ndrm/xe: Open-code GGTT MMIO access protection\\n\\nGGTT MMIO access is currently protected by hotplug (drm_dev_enter),\\nwhich works correctly when the driver loads successfully and is later\\nunbound or unloaded. However, if driver load fails, this protection is\\ninsufficient because drm_dev_unplug() is never called.\\n\\nAdditionally, devm release functions cannot guarantee that all BOs with\\nGGTT mappings are destroyed before the GGTT MMIO region is removed, as\\nsome BOs may be freed asynchronously by worker threads.\\n\\nTo address this, introduce an open-coded flag, protected by the GGTT\\nlock, that guards GGTT MMIO access. The flag is cleared during the\\ndev_fini_ggtt devm release function to ensure MMIO access is disabled\\nonce teardown begins.\\n\\n(cherry picked from commit 4f3a998a173b4325c2efd90bdadc6ccd3ad9a431)\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/01f2557aa684e514005541e71a3d01f4cd45c170\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/1e9e2640d870d4837bcfdc220cb2c99ae5ee119f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/76326dc06d8793c2c81c31cc0115dbc348de2f88\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/e2b424aadecb640f9e037b2891191cf8fd4c64cf\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}

FKIE_CVE-2026-23466

Vulnerability from fkie_nvd - Published: 2026-04-03 16:16 - Updated: 2026-04-07 13:20

Severity ?

Summary

References

	URL	Tags
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/01f2557aa684e514005541e71a3d01f4cd45c170
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/1e9e2640d870d4837bcfdc220cb2c99ae5ee119f
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/76326dc06d8793c2c81c31cc0115dbc348de2f88
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/e2b424aadecb640f9e037b2891191cf8fd4c64cf

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/xe: Open-code GGTT MMIO access protection\n\nGGTT MMIO access is currently protected by hotplug (drm_dev_enter),\nwhich works correctly when the driver loads successfully and is later\nunbound or unloaded. However, if driver load fails, this protection is\ninsufficient because drm_dev_unplug() is never called.\n\nAdditionally, devm release functions cannot guarantee that all BOs with\nGGTT mappings are destroyed before the GGTT MMIO region is removed, as\nsome BOs may be freed asynchronously by worker threads.\n\nTo address this, introduce an open-coded flag, protected by the GGTT\nlock, that guards GGTT MMIO access. The flag is cleared during the\ndev_fini_ggtt devm release function to ensure MMIO access is disabled\nonce teardown begins.\n\n(cherry picked from commit 4f3a998a173b4325c2efd90bdadc6ccd3ad9a431)"
    }
  ],
  "id": "CVE-2026-23466",
  "lastModified": "2026-04-07T13:20:55.200",
  "metrics": {},
  "published": "2026-04-03T16:16:34.017",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/01f2557aa684e514005541e71a3d01f4cd45c170"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/1e9e2640d870d4837bcfdc220cb2c99ae5ee119f"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/76326dc06d8793c2c81c31cc0115dbc348de2f88"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/e2b424aadecb640f9e037b2891191cf8fd4c64cf"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}

GHSA-92CV-R3F2-HRPF

Vulnerability from github – Published: 2026-04-03 18:31 – Updated: 2026-04-03 18:31

Details

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

drm/xe: Open-code GGTT MMIO access protection

GGTT MMIO access is currently protected by hotplug (drm_dev_enter), which works correctly when the driver loads successfully and is later unbound or unloaded. However, if driver load fails, this protection is insufficient because drm_dev_unplug() is never called.

Additionally, devm release functions cannot guarantee that all BOs with GGTT mappings are destroyed before the GGTT MMIO region is removed, as some BOs may be freed asynchronously by worker threads.

To address this, introduce an open-coded flag, protected by the GGTT lock, that guards GGTT MMIO access. The flag is cleared during the dev_fini_ggtt devm release function to ensure MMIO access is disabled once teardown begins.

(cherry picked from commit 4f3a998a173b4325c2efd90bdadc6ccd3ad9a431)

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-23466"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-04-03T16:16:34Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/xe: Open-code GGTT MMIO access protection\n\nGGTT MMIO access is currently protected by hotplug (drm_dev_enter),\nwhich works correctly when the driver loads successfully and is later\nunbound or unloaded. However, if driver load fails, this protection is\ninsufficient because drm_dev_unplug() is never called.\n\nAdditionally, devm release functions cannot guarantee that all BOs with\nGGTT mappings are destroyed before the GGTT MMIO region is removed, as\nsome BOs may be freed asynchronously by worker threads.\n\nTo address this, introduce an open-coded flag, protected by the GGTT\nlock, that guards GGTT MMIO access. The flag is cleared during the\ndev_fini_ggtt devm release function to ensure MMIO access is disabled\nonce teardown begins.\n\n(cherry picked from commit 4f3a998a173b4325c2efd90bdadc6ccd3ad9a431)",
  "id": "GHSA-92cv-r3f2-hrpf",
  "modified": "2026-04-03T18:31:22Z",
  "published": "2026-04-03T18:31:22Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-23466"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/01f2557aa684e514005541e71a3d01f4cd45c170"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1e9e2640d870d4837bcfdc220cb2c99ae5ee119f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/76326dc06d8793c2c81c31cc0115dbc348de2f88"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e2b424aadecb640f9e037b2891191cf8fd4c64cf"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

Sightings

Author	Source	Type	Date

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.

Action not permitted

CVE-2026-23466 (GCVE-0-2026-23466)

FKIE_CVE-2026-23466

GHSA-92CV-R3F2-HRPF

Tags

Sightings

Nomenclature