CVE-2026-68241 (GCVE-0-2026-68241)

Vulnerability from cvelistv5 – Published: 2026-08-10 12:01 – Updated: 2026-08-17 05:01
VLAI
Title
drm/i915/mst: limit DP MST ESI service loop
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)
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 3c0ec2c2d5948356a22c8f1c08a8087b12a303e7 , < e3bcd3bf7eeca9570b9fa0b2f8a602c7bcc6b0d0 (git)
Affected: 3c0ec2c2d5948356a22c8f1c08a8087b12a303e7 , < 9061fbf2230b6fcef042a6f637beae57c2fc93a5 (git)
Affected: 3c0ec2c2d5948356a22c8f1c08a8087b12a303e7 , < 005771c18c5b2c98cb4e7517661aea460990fd3f (git)
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Linux Linux Affected: 5.8
Unaffected: 0 , < 5.8 (semver)
Unaffected: 6.18.42 , ≤ 6.18.* (semver)
Unaffected: 7.1.6 , ≤ 7.1.* (semver)
Unaffected: 7.2 , ≤ * (original_commit_for_fix)
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{
  "containers": {
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          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/i915/display/intel_dp.c"
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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/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": "2026-08-17T05:01:30.690Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
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          "url": "https://git.kernel.org/stable/c/e3bcd3bf7eeca9570b9fa0b2f8a602c7bcc6b0d0"
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          "url": "https://git.kernel.org/stable/c/9061fbf2230b6fcef042a6f637beae57c2fc93a5"
        },
        {
          "url": "https://git.kernel.org/stable/c/005771c18c5b2c98cb4e7517661aea460990fd3f"
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      "title": "drm/i915/mst: limit DP MST ESI service loop",
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  "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": "2026-08-17T05:01:30.690Z",
    "state": "PUBLISHED"
  },
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  "dataVersion": "5.2",
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      "percentile": "0.09934"
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    "redhat_vex": {
      "aggregate_severity": "Low",
      "current_release_date": "2026-08-12T23:05:44+00:00",
      "cve": "CVE-2026-68241",
      "id": "CVE-2026-68241",
      "initial_release_date": "2026-08-10T00:00:00+00:00",
      "product_status:known_affected": "233",
      "product_status:known_not_affected": "43",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: drm/i915/mst: limit DP MST ESI service loop",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-68241.json",
      "version": "3"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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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.