Vulnerability-Lookup

GHSA-4CJ7-CQHW-3CG9

Vulnerability from github – Published: 2026-08-10 15:33 – Updated: 2026-08-10 15:33

Details

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

drm/i915/gt: Fix NULL deref on sched_engine alloc failure

Avoid using intel_context_put() before intel_context_init() in execlists_create_virtual() as the kref_put() inside would lead to NULL deref on the IOCTL path when sched_engine allocation fails.

Discovered using AI-assisted static analysis confirmed by Intel Product Security.

(cherry picked from commit 4f2a12f2d50e9f48227656e4dcbd6423506be31d)

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{
  "affected": [],
  "aliases": [
    "CVE-2026-68242"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-10T13:20:12Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/i915/gt: Fix NULL deref on sched_engine alloc failure\n\nAvoid using intel_context_put() before intel_context_init() in\nexeclists_create_virtual() as the kref_put() inside would lead\nto NULL deref on the IOCTL path when sched_engine allocation fails.\n\nDiscovered using AI-assisted static analysis confirmed by\nIntel Product Security.\n\n(cherry picked from commit 4f2a12f2d50e9f48227656e4dcbd6423506be31d)",
  "id": "GHSA-4cj7-cqhw-3cg9",
  "modified": "2026-08-10T15:33:42Z",
  "published": "2026-08-10T15:33:42Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-68242"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/82ec992c404c3dc774c5e9f3d4aa858e97187675"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/edd4804f07b8369ed472de19272974e2bf2a6271"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-68242 (GCVE-0-2026-68242)

Vulnerability from cvelistv5 – Published: 2026-08-10 12:01 – Updated: 2026-08-17 05:01

Title

drm/i915/gt: Fix NULL deref on sched_engine alloc failure

Summary

In the Linux kernel, the following vulnerability has been resolved: drm/i915/gt: Fix NULL deref on sched_engine alloc failure Avoid using intel_context_put() before intel_context_init() in execlists_create_virtual() as the kref_put() inside would lead to NULL deref on the IOCTL path when sched_engine allocation fails. Discovered using AI-assisted static analysis confirmed by Intel Product Security. (cherry picked from commit 4f2a12f2d50e9f48227656e4dcbd6423506be31d)

Severity

No CVSS data available.

Assigner

Linux mitre root

References

2 references

URL	Tags
https://git.kernel.org/stable/c/edd4804f07b8369ed…
https://git.kernel.org/stable/c/82ec992c404c3dc77…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 3e28d37146db5dd49c469bc62a93ca791067d391 , < edd4804f07b8369ed472de19272974e2bf2a6271 (git) Affected: 3e28d37146db5dd49c469bc62a93ca791067d391 , < 82ec992c404c3dc774c5e9f3d4aa858e97187675 (git)
Linux	Linux	Affected: 5.15 Unaffected: 0 , < 5.15 (semver) Unaffected: 7.1.6 , ≤ 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/i915/gt/intel_execlists_submission.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "edd4804f07b8369ed472de19272974e2bf2a6271",
              "status": "affected",
              "version": "3e28d37146db5dd49c469bc62a93ca791067d391",
              "versionType": "git"
            },
            {
              "lessThan": "82ec992c404c3dc774c5e9f3d4aa858e97187675",
              "status": "affected",
              "version": "3e28d37146db5dd49c469bc62a93ca791067d391",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/i915/gt/intel_execlists_submission.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.15"
            },
            {
              "lessThan": "5.15",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.1.*",
              "status": "unaffected",
              "version": "7.1.6",
              "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": "7.1.6",
                  "versionStartIncluding": "5.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2",
                  "versionStartIncluding": "5.15",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/i915/gt: Fix NULL deref on sched_engine alloc failure\n\nAvoid using intel_context_put() before intel_context_init() in\nexeclists_create_virtual() as the kref_put() inside would lead\nto NULL deref on the IOCTL path when sched_engine allocation fails.\n\nDiscovered using AI-assisted static analysis confirmed by\nIntel Product Security.\n\n(cherry picked from commit 4f2a12f2d50e9f48227656e4dcbd6423506be31d)"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-17T05:01:31.785Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/edd4804f07b8369ed472de19272974e2bf2a6271"
        },
        {
          "url": "https://git.kernel.org/stable/c/82ec992c404c3dc774c5e9f3d4aa858e97187675"
        }
      ],
      "title": "drm/i915/gt: Fix NULL deref on sched_engine alloc failure",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-68242",
    "datePublished": "2026-08-10T12:01:08.447Z",
    "dateReserved": "2026-07-30T09:28:09.377Z",
    "dateUpdated": "2026-08-17T05:01:31.785Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

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.

Action not permitted

GHSA-4CJ7-CQHW-3CG9

CVE-2026-68242 (GCVE-0-2026-68242)

Tags

Sightings

Nomenclature