CVE-2026-68241 (GCVE-0-2026-68241)
Vulnerability from cvelistv5
Published
2026-08-10 12:01
Modified
2026-10-21 12:43
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: drm/i915/mst: limit DP MST ESI service loop The loop in intel_dp_check_mst_status() keeps servicing interrupts originating from the sink without bound. Add an upper bound to the new interrupts occurring during interrupt processing to not get stuck on potentially stuck sink devices. Use arbitrary 32 tries to clear incoming interrupts in one go. Discovered using AI-assisted static analysis confirmed by Intel Product Security. Note: The condition likely pre-dates the commit in the Fixes: tag, but this is about as far back as a backport has any chance of succeeding. Before that, the retry had a goto. (cherry picked from commit b4ea5272133059acb493cc36599071a9e852ec2e)
References
Impacted products
Vendor Product Version
Linux Linux Version: 3c0ec2c2d5948356a22c8f1c08a8087b12a303e7
Version: 3c0ec2c2d5948356a22c8f1c08a8087b12a303e7
Version: 3c0ec2c2d5948356a22c8f1c08a8087b12a303e7
Version: 3c0ec2c2d5948356a22c8f1c08a8087b12a303e7
Version: 3c0ec2c2d5948356a22c8f1c08a8087b12a303e7
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{
  "containers": {
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        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/i915/display/intel_dp.c"
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          "vendor": "Linux",
          "versions": [
            {
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              "status": "unaffected",
              "version": "7.1.6",
              "versionType": "semver"
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              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix"
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        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
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              "negate": false,
              "operator": "OR"
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/i915/mst: limit DP MST ESI service loop\n\nThe loop in intel_dp_check_mst_status() keeps servicing interrupts\noriginating from the sink without bound. Add an upper bound to the new\ninterrupts occurring during interrupt processing to not get stuck on\npotentially stuck sink devices. Use arbitrary 32 tries to clear incoming\ninterrupts in one go.\n\nDiscovered using AI-assisted static analysis confirmed by Intel Product\nSecurity.\n\nNote: The condition likely pre-dates the commit in the Fixes: tag, but\nthis is about as far back as a backport has any chance of\nsucceeding. Before that, the retry had a goto.\n\n(cherry picked from commit b4ea5272133059acb493cc36599071a9e852ec2e)"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-21T12:43:36.487Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/fae63319ad397666a9c56a17ea1047d2bf9a1e25"
        },
        {
          "url": "https://git.kernel.org/stable/c/02ceba559412751106c0cfa5cbdb80db50303083"
        },
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          "url": "https://git.kernel.org/stable/c/e3bcd3bf7eeca9570b9fa0b2f8a602c7bcc6b0d0"
        },
        {
          "url": "https://git.kernel.org/stable/c/9061fbf2230b6fcef042a6f637beae57c2fc93a5"
        },
        {
          "url": "https://git.kernel.org/stable/c/005771c18c5b2c98cb4e7517661aea460990fd3f"
        }
      ],
      "title": "drm/i915/mst: limit DP MST ESI service loop",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-68241",
    "datePublished": "2026-08-10T12:01:07.103Z",
    "dateReserved": "2026-07-30T09:28:09.377Z",
    "dateUpdated": "2026-10-21T12:43:36.487Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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