CVE-2026-93179 (GCVE-0-2026-93179)

Vulnerability from cvelistv5 – Published: 2026-09-17 16:12 – Updated: 2026-10-21 12:52
VLAI
Title
drm/amd/powerplay: fix VoltageObjectInfo zero-stride loop and OOB read
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.
Severity
No CVSS data available.
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 7061 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: c82baa28184356a75c0157129f88af42b2e7b695 , < 574af7c61f2bed37baa3b60669e428d24d2c9ae8 (git)
Affected: c82baa28184356a75c0157129f88af42b2e7b695 , < 203ffe648948ca3c2f55b21118945a7a6d0884aa (git)
Affected: c82baa28184356a75c0157129f88af42b2e7b695 , < 0a6c9b3801903b6db91f3cbf148646b501dbded3 (git)
Affected: c82baa28184356a75c0157129f88af42b2e7b695 , < 83c680de6d41d627c077dedb24f89d9e5be0e2a2 (git)
Affected: c82baa28184356a75c0157129f88af42b2e7b695 , < 5d3cc8e388464f485d0944b87b8f9426e637d082 (git)
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Linux Linux Affected: 4.5
Unaffected: 0 , < 4.5 (semver)
Unaffected: 6.6.160 , ≤ 6.6.* (semver)
Unaffected: 6.12.113 , ≤ 6.12.* (semver)
Unaffected: 6.18.56 , ≤ 6.18.* (semver)
Unaffected: 7.2.6 , ≤ 7.2.* (semver)
Unaffected: 7.3 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Show details on NVD website
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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": [
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              "version": "c82baa28184356a75c0157129f88af42b2e7b695",
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          "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"
            },
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              "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": [
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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\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"
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  },
  "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",
  "vulnerability-lookup:meta": {
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      "date": "2026-10-23",
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      "percentile": "0.10133"
    },
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      "id": "msrc_CVE-2026-93179",
      "initial_release_date": "2026-09-19T01:09:55.000Z",
      "product_status:known_affected": "3",
      "product_status:under_investigation": "1",
      "source": "Microsoft CSAF VEX",
      "status": "final",
      "title": "drm/amd/powerplay: fix VoltageObjectInfo zero-stride loop and OOB read",
      "url": "https://msrc.microsoft.com/csaf/vex/2026/msrc_cve-2026-93179.json",
      "version": "5"
    },
    "nvd": {
      "cve": {
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            "affectedData": [
              {
                "defaultStatus": "unaffected",
                "product": "Linux",
                "programFiles": [
                  "drivers/gpu/drm/amd/pm/powerplay/hwmgr/ppatomctrl.c",
                  "drivers/gpu/drm/amd/pm/powerplay/hwmgr/ppatomfwctrl.c"
                ],
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                ],
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            "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."
          }
        ],
        "id": "CVE-2026-93179",
        "lastModified": "2026-10-21T13:21:01.897",
        "metrics": {},
        "published": "2026-09-17T17:18:13.773",
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      "cve": "CVE-2026-93179",
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      "product_status:known_affected": "249",
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      "title": "kernel: drm/amd/powerplay: fix VoltageObjectInfo zero-stride loop and OOB read",
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      "title": "SUSE CVE CVE-2026-93179",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/2026/cve-2026-93179.json",
      "version": "6"
    }
  }
}



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