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GHSA-3WX5-9X5H-8QMH

Vulnerability from github – Published: 2026-09-17 18:32 – Updated: 2026-09-17 18:32

Details

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

platform/x86: dell-wmi-base: Fix handling of ultra performance key

The commit message of commit 5fbd827eb9c2 ("platform/x86: dell-wmi: Recognise or support new switches") states that the ultra performance key contains additional data after the type and code fields. The event data passed to dell_wmi_process_key() is already parsed, so "buffer" already starts after those two fields.

Use the correct index for accessing the first data field to avoid a potential buffer overread.

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{
  "affected": [],
  "aliases": [
    "CVE-2026-93129"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-17T17:18:07Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nplatform/x86: dell-wmi-base: Fix handling of ultra performance key\n\nThe commit message of commit 5fbd827eb9c2 (\"platform/x86: dell-wmi: Recognise or support new switches\")\nstates that the ultra performance key contains additional data\nafter the type and code fields. The event data passed to\ndell_wmi_process_key() is already parsed, so \"buffer\" already\nstarts after those two fields.\n\nUse the correct index for accessing the first data field to avoid\na potential buffer overread.",
  "id": "GHSA-3wx5-9x5h-8qmh",
  "modified": "2026-09-17T18:32:11Z",
  "published": "2026-09-17T18:32:11Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-93129"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/392c19faec6bf4cb72fb02322e2a61e198dd8f72"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/adfd6846bea13667ff28f8aaf00c32fbd69825ab"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-93129 (GCVE-0-2026-93129)

Vulnerability from cvelistv5 – Published: 2026-09-17 16:11 – Updated: 2026-09-17 16:11

Title

platform/x86: dell-wmi-base: Fix handling of ultra performance key

Summary

In the Linux kernel, the following vulnerability has been resolved: platform/x86: dell-wmi-base: Fix handling of ultra performance key The commit message of commit 5fbd827eb9c2 ("platform/x86: dell-wmi: Recognise or support new switches") states that the ultra performance key contains additional data after the type and code fields. The event data passed to dell_wmi_process_key() is already parsed, so "buffer" already starts after those two fields. Use the correct index for accessing the first data field to avoid a potential buffer overread.

Severity

No CVSS data available.

Assigner

Linux mitre root

References

2 references

URL	Tags
https://git.kernel.org/stable/c/392c19faec6bf4cb7…
https://git.kernel.org/stable/c/adfd6846bea13667f…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 5fbd827eb9c224c33a5f263ee543a75fe957faa3 , < 392c19faec6bf4cb72fb02322e2a61e198dd8f72 (git) Affected: 5fbd827eb9c224c33a5f263ee543a75fe957faa3 , < adfd6846bea13667ff28f8aaf00c32fbd69825ab (git)
Linux	Linux	Affected: 5.16 Unaffected: 0 , < 5.16 (semver) Unaffected: 7.2.6 , ≤ 7.2.* (semver) Unaffected: 7.3-rc1 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/platform/x86/dell/dell-wmi-base.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "392c19faec6bf4cb72fb02322e2a61e198dd8f72",
              "status": "affected",
              "version": "5fbd827eb9c224c33a5f263ee543a75fe957faa3",
              "versionType": "git"
            },
            {
              "lessThan": "adfd6846bea13667ff28f8aaf00c32fbd69825ab",
              "status": "affected",
              "version": "5fbd827eb9c224c33a5f263ee543a75fe957faa3",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/platform/x86/dell/dell-wmi-base.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.16"
            },
            {
              "lessThan": "5.16",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.2.*",
              "status": "unaffected",
              "version": "7.2.6",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3-rc1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
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              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2.6",
                  "versionStartIncluding": "5.16",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.3-rc1",
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                  "vulnerable": true
                }
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            }
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      "descriptions": [
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nplatform/x86: dell-wmi-base: Fix handling of ultra performance key\n\nThe commit message of commit 5fbd827eb9c2 (\"platform/x86: dell-wmi: Recognise or support new switches\")\nstates that the ultra performance key contains additional data\nafter the type and code fields. The event data passed to\ndell_wmi_process_key() is already parsed, so \"buffer\" already\nstarts after those two fields.\n\nUse the correct index for accessing the first data field to avoid\na potential buffer overread."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-17T16:11:32.609Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
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          "url": "https://git.kernel.org/stable/c/392c19faec6bf4cb72fb02322e2a61e198dd8f72"
        },
        {
          "url": "https://git.kernel.org/stable/c/adfd6846bea13667ff28f8aaf00c32fbd69825ab"
        }
      ],
      "title": "platform/x86: dell-wmi-base: Fix handling of ultra performance key",
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        "engine": "bippy-1.2.0"
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  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-93129",
    "datePublished": "2026-09-17T16:11:32.609Z",
    "dateReserved": "2026-09-17T16:02:15.087Z",
    "dateUpdated": "2026-09-17T16:11:32.609Z",
    "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.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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