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CVE-2026-93178

Full vulnerability record from the local CVENow database.

Description

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu/pm/powerplay: bounds-check voltage index in SMU7 lookup vddInd and vddcInd fields from VBIOS-parsed tables are used to index into voltage lookup tables without a bounds check. Return -EINVAL when any index is out of range.

Severity
HIGH
CVSS score
7.1 (v3.1)
Vulnerability status
Received
Source identifier
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Published
2026-09-17 17:18:13.643000
Last modified
2026-10-19 10:17:08.263000
View original CVE JSON 
{
  "id": "CVE-2026-93178",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2026-09-17T17:18:13.643",
  "lastModified": "2026-10-19T10:17:08.263",
  "vulnStatus": "Received",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu/pm/powerplay: bounds-check voltage index in SMU7 lookup\n\nvddInd and vddcInd fields from VBIOS-parsed tables are used to index into\nvoltage lookup tables without a bounds check. Return -EINVAL when any\nindex is out of range."
    }
  ],
  "affected": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "affectedData": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "programFiles": [
            "drivers/gpu/drm/amd/pm/powerplay/hwmgr/smu7_hwmgr.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "versions": [
            {
              "version": "c82baa28184356a75c0157129f88af42b2e7b695",
              "lessThan": "d9ef085114d1e3c2c1f869c0bdb275a7b358ce8b",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "c82baa28184356a75c0157129f88af42b2e7b695",
              "lessThan": "6f08c001fa6e8212930d694540ae8d9d6d3fb58a",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "c82baa28184356a75c0157129f88af42b2e7b695",
              "lessThan": "ce0d8e72836c9d3710a160ad848b0f1d096075e3",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "c82baa28184356a75c0157129f88af42b2e7b695",
              "lessThan": "745297208d31222f916cc04da313cb737b997935",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "c82baa28184356a75c0157129f88af42b2e7b695",
              "lessThan": "f925d317d84d401d642e537ea18ee12f67cb6983",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "c82baa28184356a75c0157129f88af42b2e7b695",
              "lessThan": "8a3db9f593b643904c6cc6d8a3f211c84ca6cf8a",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "c82baa28184356a75c0157129f88af42b2e7b695",
              "lessThan": "1664327ce797e09e387dc10cbbaa5b8d76558d2c",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "c82baa28184356a75c0157129f88af42b2e7b695",
              "lessThan": "3a8a05477cda6c8293e2b629495b42981dcaba32",
              "versionType": "git",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "programFiles": [
            "drivers/gpu/drm/amd/pm/powerplay/hwmgr/smu7_hwmgr.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "versions": [
            {
              "version": "4.5",
              "status": "affected"
            },
            {
              "version": "0",
              "lessThan": "4.5",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "5.10.270",
              "lessThanOrEqual": "5.10.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "5.15.221",
              "lessThanOrEqual": "5.15.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.1.188",
              "lessThanOrEqual": "6.1.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.6.157",
              "lessThanOrEqual": "6.6.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.12.110",
              "lessThanOrEqual": "6.12.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.18.52",
              "lessThanOrEqual": "6.18.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "7.2.6",
              "lessThanOrEqual": "7.2.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "7.3",
              "lessThanOrEqual": "*",
              "versionType": "original_commit_for_fix",
              "status": "unaffected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
          "baseScore": 7.1,
          "baseSeverity": "HIGH",
          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.2
      }
    ]
  },
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/1664327ce797e09e387dc10cbbaa5b8d76558d2c",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/3a8a05477cda6c8293e2b629495b42981dcaba32",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/6f08c001fa6e8212930d694540ae8d9d6d3fb58a",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/745297208d31222f916cc04da313cb737b997935",
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    },
    {
      "url": "https://git.kernel.org/stable/c/8a3db9f593b643904c6cc6d8a3f211c84ca6cf8a",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/ce0d8e72836c9d3710a160ad848b0f1d096075e3",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/d9ef085114d1e3c2c1f869c0bdb275a7b358ce8b",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/f925d317d84d401d642e537ea18ee12f67cb6983",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ]
}