CVE-2024-26938 (GCVE-0-2024-26938)

Vulnerability from cvelistv5 – Published: 2024-05-01 05:17 – Updated: 2026-05-11 20:07
VLAI
Title
drm/i915/bios: Tolerate devdata==NULL in intel_bios_encoder_supports_dp_dual_mode()
Summary
In the Linux kernel, the following vulnerability has been resolved: drm/i915/bios: Tolerate devdata==NULL in intel_bios_encoder_supports_dp_dual_mode() If we have no VBT, or the VBT didn't declare the encoder in question, we won't have the 'devdata' for the encoder. Instead of oopsing just bail early. We won't be able to tell whether the port is DP++ or not, but so be it. (cherry picked from commit 26410896206342c8a80d2b027923e9ee7d33b733)
Severity
No CVSS data available.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-09-10 15:45 UTC
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 6641 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 2bea1d7c594dd0643db23a8131c689384d0e5d8c , < a891add409e3bc381f4f68c2ce9d953f1865cb1f (git)
Affected: 2bea1d7c594dd0643db23a8131c689384d0e5d8c , < f4bbac954d8f9ab214ea1d4f385de4fa6bd92dd0 (git)
Affected: 2bea1d7c594dd0643db23a8131c689384d0e5d8c , < 94cf2fb6feccd625e5b4e23e1b70f39a206f82ac (git)
Affected: 2bea1d7c594dd0643db23a8131c689384d0e5d8c , < 32e39bab59934bfd3f37097d4dd85ac5eb0fd549 (git)
guessed Create a notification for this product.
Linux Linux Affected: 6.5
Unaffected: 0 , < 6.5 (semver)
Unaffected: 6.6.24 , ≤ 6.6.* (semver)
Unaffected: 6.7.12 , ≤ 6.7.* (semver)
Unaffected: 6.8.3 , ≤ 6.8.* (semver)
Unaffected: 6.9 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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                    "role": "CISA Coordinator",
                    "timestamp": "2024-09-10T15:45:49.016568Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2024-09-11T12:42:19.349Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "defaultStatus": "unaffected",
              "product": "Linux",
              "programFiles": [
                "drivers/gpu/drm/i915/display/intel_bios.c"
              ],
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "vendor": "Linux",
              "versions": [
                {
                  "lessThan": "a891add409e3bc381f4f68c2ce9d953f1865cb1f",
                  "status": "affected",
                  "version": "2bea1d7c594dd0643db23a8131c689384d0e5d8c",
                  "versionType": "git"
                },
                {
                  "lessThan": "f4bbac954d8f9ab214ea1d4f385de4fa6bd92dd0",
                  "status": "affected",
                  "version": "2bea1d7c594dd0643db23a8131c689384d0e5d8c",
                  "versionType": "git"
                },
                {
                  "lessThan": "94cf2fb6feccd625e5b4e23e1b70f39a206f82ac",
                  "status": "affected",
                  "version": "2bea1d7c594dd0643db23a8131c689384d0e5d8c",
                  "versionType": "git"
                },
                {
                  "lessThan": "32e39bab59934bfd3f37097d4dd85ac5eb0fd549",
                  "status": "affected",
                  "version": "2bea1d7c594dd0643db23a8131c689384d0e5d8c",
                  "versionType": "git"
                }
              ]
            },
            {
              "defaultStatus": "affected",
              "product": "Linux",
              "programFiles": [
                "drivers/gpu/drm/i915/display/intel_bios.c"
              ],
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "vendor": "Linux",
              "versions": [
                {
                  "status": "affected",
                  "version": "6.5"
                },
                {
                  "lessThan": "6.5",
                  "status": "unaffected",
                  "version": "0",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "6.6.*",
                  "status": "unaffected",
                  "version": "6.6.24",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "6.7.*",
                  "status": "unaffected",
                  "version": "6.7.12",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "6.8.*",
                  "status": "unaffected",
                  "version": "6.8.3",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "*",
                  "status": "unaffected",
                  "version": "6.9",
                  "versionType": "original_commit_for_fix"
                }
              ]
            }
          ],
          "cpeApplicability": [
            {
              "nodes": [
                {
                  "cpeMatch": [
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.6.24",
                      "versionStartIncluding": "6.5",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.7.12",
                      "versionStartIncluding": "6.5",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.8.3",
                      "versionStartIncluding": "6.5",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.9",
                      "versionStartIncluding": "6.5",
                      "vulnerable": true
                    }
                  ],
                  "negate": false,
                  "operator": "OR"
                }
              ]
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/i915/bios: Tolerate devdata==NULL in intel_bios_encoder_supports_dp_dual_mode()\n\nIf we have no VBT, or the VBT didn\u0027t declare the encoder\nin question, we won\u0027t have the \u0027devdata\u0027 for the encoder.\nInstead of oopsing just bail early.\n\nWe won\u0027t be able to tell whether the port is DP++ or not,\nbut so be it.\n\n(cherry picked from commit 26410896206342c8a80d2b027923e9ee7d33b733)"
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-05-11T20:07:16.897Z",
            "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "shortName": "Linux"
          },
          "references": [
            {
              "url": "https://git.kernel.org/stable/c/a891add409e3bc381f4f68c2ce9d953f1865cb1f"
            },
            {
              "url": "https://git.kernel.org/stable/c/f4bbac954d8f9ab214ea1d4f385de4fa6bd92dd0"
            },
            {
              "url": "https://git.kernel.org/stable/c/94cf2fb6feccd625e5b4e23e1b70f39a206f82ac"
            },
            {
              "url": "https://git.kernel.org/stable/c/32e39bab59934bfd3f37097d4dd85ac5eb0fd549"
            }
          ],
          "title": "drm/i915/bios: Tolerate devdata==NULL in intel_bios_encoder_supports_dp_dual_mode()",
          "x_generator": {
            "engine": "bippy-1.2.0"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "assignerShortName": "Linux",
        "cveId": "CVE-2024-26938",
        "datePublished": "2024-05-01T05:17:40.173Z",
        "dateReserved": "2024-02-19T14:20:24.196Z",
        "dateUpdated": "2026-05-11T20:07:16.897Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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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.
Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

JSON
How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

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    Related by attack behaviour

    Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.