CVE-2026-68242 (GCVE-0-2026-68242)
Vulnerability from cvelistv5
Published
2026-08-10 12:01
Modified
2026-10-30 12:28
Severity ?
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)
References
Impacted products
Vendor Product Version
Linux Linux Version: 3e28d37146db5dd49c469bc62a93ca791067d391
Version: 3e28d37146db5dd49c469bc62a93ca791067d391
Version: 3e28d37146db5dd49c469bc62a93ca791067d391
Version: 3e28d37146db5dd49c469bc62a93ca791067d391
Version: 3e28d37146db5dd49c469bc62a93ca791067d391
Version: 3e28d37146db5dd49c469bc62a93ca791067d391
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/i915/gt/intel_execlists_submission.c"
          ],
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            }
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        },
        {
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          "product": "Linux",
          "programFiles": [
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          ],
          "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": "6.1.*",
              "status": "unaffected",
              "version": "6.1.191",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.160",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.114",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.57",
              "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": "6.1.191",
                  "versionStartIncluding": "5.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.160",
                  "versionStartIncluding": "5.15",
                  "vulnerable": true
                },
                {
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                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.57",
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                  "vulnerable": true
                },
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                  "vulnerable": true
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                  "versionEndExcluding": "7.2",
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              ],
              "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": "2026-10-30T12:28:13.711Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/9ea0aaf8bf9fda6e101f2304391f066d99d0d054"
        },
        {
          "url": "https://git.kernel.org/stable/c/bedeee4612afc15c53f8d3c6da05897506b4ca24"
        },
        {
          "url": "https://git.kernel.org/stable/c/7214db3e62fa9f0be7981cba9039bd835a79c070"
        },
        {
          "url": "https://git.kernel.org/stable/c/c174969f6af6c22fc9c51aefcdb7f9183c3a329a"
        },
        {
          "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": "2026-10-30T12:28:13.711Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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