CVE-2026-93129 (GCVE-0-2026-93129)
Vulnerability from cvelistv5
Published
2026-09-17 16:11
Modified
2026-10-30 12:36
Severity ?
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.
References
Impacted products
Vendor Product Version
Linux Linux Version: 5fbd827eb9c224c33a5f263ee543a75fe957faa3
Version: 5fbd827eb9c224c33a5f263ee543a75fe957faa3
Version: 5fbd827eb9c224c33a5f263ee543a75fe957faa3
Version: 5fbd827eb9c224c33a5f263ee543a75fe957faa3
Version: 5fbd827eb9c224c33a5f263ee543a75fe957faa3
Version: 5fbd827eb9c224c33a5f263ee543a75fe957faa3
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/platform/x86/dell/dell-wmi-base.c"
          ],
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        },
        {
          "defaultStatus": "affected",
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          "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"
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            {
              "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": "7.2.*",
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              "version": "7.2.6",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.191",
                  "versionStartIncluding": "5.16",
                  "vulnerable": true
                },
                {
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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\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": "2026-10-30T12:36:06.719Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/ef16f467393ca1a15ec8431fba5e67dd6071074e"
        },
        {
          "url": "https://git.kernel.org/stable/c/30674a7bbf20311a0c4edd5edb9526ef1eecc692"
        },
        {
          "url": "https://git.kernel.org/stable/c/ace1a687ea9ea70d17e3089ca173acfa1ec24412"
        },
        {
          "url": "https://git.kernel.org/stable/c/16a82add1918d3aae1e0b68c0a983b6fc64f5062"
        },
        {
          "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",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "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": "2026-10-30T12:36:06.719Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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