Vulnerability-Lookup

GHSA-7RQX-8X9Q-HJ6W

Vulnerability from github – Published: 2026-08-15 06:32 – Updated: 2026-08-15 06:32

Details

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

drm/xe/pt: Fix NULL pointer dereference in xe_pt_zap_ptes_entry()

The page-table walk framework may pass a NULL child pointer for unpopulated entries. xe_pt_zap_ptes_entry() called container_of(child) before checking for NULL, then dereferenced the result, causing a crash.

Move the container_of() call after a NULL guard, so the function returns early instead of proceeding with an invalid pointer. XE_WARN_ON is kept to help root cause the issue, but we now bail instead of crashing the driver.

v2: Comment that triggering XE_WARN_ON is unexpected behavior (Matt Brost)

(cherry picked from commit b9297d19d9df5d4b6c994648570c5dcd1cac68ff)

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{
  "affected": [],
  "aliases": [
    "CVE-2026-72362"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-15T06:22:09Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/xe/pt: Fix NULL pointer dereference in xe_pt_zap_ptes_entry()\n\nThe page-table walk framework may pass a NULL *child pointer for\nunpopulated entries. xe_pt_zap_ptes_entry() called container_of(*child)\nbefore checking for NULL, then dereferenced the result, causing a crash.\n\nMove the container_of() call after a NULL guard, so the function returns\nearly instead of proceeding with an invalid pointer. XE_WARN_ON is kept\nto help root cause the issue, but we now bail instead of crashing the\ndriver.\n\nv2: Comment that triggering XE_WARN_ON is unexpected behavior (Matt Brost)\n\n(cherry picked from commit b9297d19d9df5d4b6c994648570c5dcd1cac68ff)",
  "id": "GHSA-7rqx-8x9q-hj6w",
  "modified": "2026-08-15T06:32:21Z",
  "published": "2026-08-15T06:32:21Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-72362"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3feeb667197bd58a17f4edfdbcad249ffcb3c864"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/78b1074966d290d4517f42bc81e13c4349368d12"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d94b9922b2ae5ee6e900f8da0bd537b251c6110c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ff330ce16c846b70164ff0eb544c81219d4c5c08"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-72362 (GCVE-0-2026-72362)

Vulnerability from cvelistv5 – Published: 2026-08-15 05:56 – Updated: 2026-08-17 05:13

Title

drm/xe/pt: Fix NULL pointer dereference in xe_pt_zap_ptes_entry()

Summary

In the Linux kernel, the following vulnerability has been resolved: drm/xe/pt: Fix NULL pointer dereference in xe_pt_zap_ptes_entry() The page-table walk framework may pass a NULL *child pointer for unpopulated entries. xe_pt_zap_ptes_entry() called container_of(*child) before checking for NULL, then dereferenced the result, causing a crash. Move the container_of() call after a NULL guard, so the function returns early instead of proceeding with an invalid pointer. XE_WARN_ON is kept to help root cause the issue, but we now bail instead of crashing the driver. v2: Comment that triggering XE_WARN_ON is unexpected behavior (Matt Brost) (cherry picked from commit b9297d19d9df5d4b6c994648570c5dcd1cac68ff)

Severity

No CVSS data available.

Assigner

Linux CNA under the mitre root

CNA scorecard D 54/100 over 6633 records in the last 180 days details

References

4 references

URL	Tags
https://git.kernel.org/stable/c/ff330ce16c846b701…
https://git.kernel.org/stable/c/78b1074966d290d45…
https://git.kernel.org/stable/c/d94b9922b2ae5ee6e…
https://git.kernel.org/stable/c/3feeb667197bd58a1…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: dd08ebf6c3525a7ea2186e636df064ea47281987 , < ff330ce16c846b70164ff0eb544c81219d4c5c08 (git) Affected: dd08ebf6c3525a7ea2186e636df064ea47281987 , < 78b1074966d290d4517f42bc81e13c4349368d12 (git) Affected: dd08ebf6c3525a7ea2186e636df064ea47281987 , < d94b9922b2ae5ee6e900f8da0bd537b251c6110c (git) Affected: dd08ebf6c3525a7ea2186e636df064ea47281987 , < 3feeb667197bd58a17f4edfdbcad249ffcb3c864 (git)
Linux	Linux	Affected: 6.8 Unaffected: 0 , < 6.8 (semver) Unaffected: 6.12.97 , ≤ 6.12.* (semver) Unaffected: 6.18.40 , ≤ 6.18.* (semver) Unaffected: 7.1.5 , ≤ 7.1.* (semver) Unaffected: 7.2 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/xe/xe_pt.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "ff330ce16c846b70164ff0eb544c81219d4c5c08",
              "status": "affected",
              "version": "dd08ebf6c3525a7ea2186e636df064ea47281987",
              "versionType": "git"
            },
            {
              "lessThan": "78b1074966d290d4517f42bc81e13c4349368d12",
              "status": "affected",
              "version": "dd08ebf6c3525a7ea2186e636df064ea47281987",
              "versionType": "git"
            },
            {
              "lessThan": "d94b9922b2ae5ee6e900f8da0bd537b251c6110c",
              "status": "affected",
              "version": "dd08ebf6c3525a7ea2186e636df064ea47281987",
              "versionType": "git"
            },
            {
              "lessThan": "3feeb667197bd58a17f4edfdbcad249ffcb3c864",
              "status": "affected",
              "version": "dd08ebf6c3525a7ea2186e636df064ea47281987",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/xe/xe_pt.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.8"
            },
            {
              "lessThan": "6.8",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.97",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.40",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.1.*",
              "status": "unaffected",
              "version": "7.1.5",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.97",
                  "versionStartIncluding": "6.8",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.40",
                  "versionStartIncluding": "6.8",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                },
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              "operator": "OR"
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/xe/pt: Fix NULL pointer dereference in xe_pt_zap_ptes_entry()\n\nThe page-table walk framework may pass a NULL *child pointer for\nunpopulated entries. xe_pt_zap_ptes_entry() called container_of(*child)\nbefore checking for NULL, then dereferenced the result, causing a crash.\n\nMove the container_of() call after a NULL guard, so the function returns\nearly instead of proceeding with an invalid pointer. XE_WARN_ON is kept\nto help root cause the issue, but we now bail instead of crashing the\ndriver.\n\nv2: Comment that triggering XE_WARN_ON is unexpected behavior (Matt Brost)\n\n(cherry picked from commit b9297d19d9df5d4b6c994648570c5dcd1cac68ff)"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-17T05:13:13.207Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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          "url": "https://git.kernel.org/stable/c/d94b9922b2ae5ee6e900f8da0bd537b251c6110c"
        },
        {
          "url": "https://git.kernel.org/stable/c/3feeb667197bd58a17f4edfdbcad249ffcb3c864"
        }
      ],
      "title": "drm/xe/pt: Fix NULL pointer dereference in xe_pt_zap_ptes_entry()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
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  "cveMetadata": {
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    "assignerShortName": "Linux",
    "cveId": "CVE-2026-72362",
    "datePublished": "2026-08-15T05:56:01.414Z",
    "dateReserved": "2026-08-09T03:40:39.921Z",
    "dateUpdated": "2026-08-17T05:13:13.207Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

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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.
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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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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GHSA-7RQX-8X9Q-HJ6W

CVE-2026-72362 (GCVE-0-2026-72362)

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