CVE-2026-93179 (GCVE-0-2026-93179)
Vulnerability from cvelistv5
Published
2026-09-17 16:12
Modified
2026-10-21 12:52
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: drm/amd/powerplay: fix VoltageObjectInfo zero-stride loop and OOB read Reject voltage objects whose usSize is smaller than the header or would advance the cursor past the table end, preventing an infinite loop or heap OOB read when the VBIOS supplies a malformed VoltageObjectInfo table.
References
Impacted products
Vendor Product Version
Linux Linux Version: c82baa28184356a75c0157129f88af42b2e7b695
Version: c82baa28184356a75c0157129f88af42b2e7b695
Version: c82baa28184356a75c0157129f88af42b2e7b695
Version: c82baa28184356a75c0157129f88af42b2e7b695
Version: c82baa28184356a75c0157129f88af42b2e7b695
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/amd/pm/powerplay/hwmgr/ppatomctrl.c",
            "drivers/gpu/drm/amd/pm/powerplay/hwmgr/ppatomfwctrl.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "574af7c61f2bed37baa3b60669e428d24d2c9ae8",
              "status": "affected",
              "version": "c82baa28184356a75c0157129f88af42b2e7b695",
              "versionType": "git"
            },
            {
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              "status": "affected",
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              "versionType": "git"
            },
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              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/amd/pm/powerplay/hwmgr/ppatomctrl.c",
            "drivers/gpu/drm/amd/pm/powerplay/hwmgr/ppatomfwctrl.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.5"
            },
            {
              "lessThan": "4.5",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.160",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.113",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.56",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.2.*",
              "status": "unaffected",
              "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": "6.6.160",
                  "versionStartIncluding": "4.5",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.113",
                  "versionStartIncluding": "4.5",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.56",
                  "versionStartIncluding": "4.5",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2.6",
                  "versionStartIncluding": "4.5",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.3",
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                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/powerplay: fix VoltageObjectInfo zero-stride loop and OOB read\n\nReject voltage objects whose usSize is smaller than the header or would\nadvance the cursor past the table end, preventing an infinite loop or\nheap OOB read when the VBIOS supplies a malformed VoltageObjectInfo table."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-21T12:52:11.924Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/574af7c61f2bed37baa3b60669e428d24d2c9ae8"
        },
        {
          "url": "https://git.kernel.org/stable/c/203ffe648948ca3c2f55b21118945a7a6d0884aa"
        },
        {
          "url": "https://git.kernel.org/stable/c/0a6c9b3801903b6db91f3cbf148646b501dbded3"
        },
        {
          "url": "https://git.kernel.org/stable/c/83c680de6d41d627c077dedb24f89d9e5be0e2a2"
        },
        {
          "url": "https://git.kernel.org/stable/c/5d3cc8e388464f485d0944b87b8f9426e637d082"
        }
      ],
      "title": "drm/amd/powerplay: fix VoltageObjectInfo zero-stride loop and OOB read",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-93179",
    "datePublished": "2026-09-17T16:12:07.307Z",
    "dateReserved": "2026-09-17T16:02:15.091Z",
    "dateUpdated": "2026-10-21T12:52:11.924Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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