FKIE_CVE-2026-80593

Vulnerability from fkie_nvd - Published: 2026-08-28 08:16 - Updated: 2026-08-29 07:16
Severity
8.4 (High) - CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: hwmon: (asus_atk0110) Check package count before accessing element atk_ec_present() walks the management group package returned by the GGRP ACPI method and, for each sub-package, reads its first element: id = &obj->package.elements[0]; if (id->type != ACPI_TYPE_INTEGER) without checking that the sub-package is non-empty. ACPICA allocates the element array with exactly package.count entries, so for a sub-package with a zero count this reads past the allocation. The sibling function atk_debugfs_ggrp_open() performs the same access but skips empty packages with a package.count check first. Add the same check to atk_ec_present() so a malformed firmware package cannot trigger an out-of-bounds read.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2a137124664aad1e36d8d74e8e2207365a04737f
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/459b0a0439ea65b2b612aa572eb62a2e26d05618
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/76392d35c8df471b288cfc6536bd092b3c8ee2cf
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/768f20e7bb48d723b82cb142120263d0806fbeb8
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/981a8a2e3773dc7e704943388a1fb97970b23275
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b770fcfcdced569bcf7c6982aeea8c3d11a21c2b
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d8d4fa0c4f818e30b6f6737bdd989b7e2b511cae
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e2735b39f044bad7bf2017aef248935525bc0b97
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/hwmon/asus_atk0110.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "2a137124664aad1e36d8d74e8e2207365a04737f",
              "status": "affected",
              "version": "9e6eba610c2eb68b05841a15ece1cf929c44aea3",
              "versionType": "git"
            },
            {
              "lessThan": "459b0a0439ea65b2b612aa572eb62a2e26d05618",
              "status": "affected",
              "version": "9e6eba610c2eb68b05841a15ece1cf929c44aea3",
              "versionType": "git"
            },
            {
              "lessThan": "768f20e7bb48d723b82cb142120263d0806fbeb8",
              "status": "affected",
              "version": "9e6eba610c2eb68b05841a15ece1cf929c44aea3",
              "versionType": "git"
            },
            {
              "lessThan": "76392d35c8df471b288cfc6536bd092b3c8ee2cf",
              "status": "affected",
              "version": "9e6eba610c2eb68b05841a15ece1cf929c44aea3",
              "versionType": "git"
            },
            {
              "lessThan": "981a8a2e3773dc7e704943388a1fb97970b23275",
              "status": "affected",
              "version": "9e6eba610c2eb68b05841a15ece1cf929c44aea3",
              "versionType": "git"
            },
            {
              "lessThan": "d8d4fa0c4f818e30b6f6737bdd989b7e2b511cae",
              "status": "affected",
              "version": "9e6eba610c2eb68b05841a15ece1cf929c44aea3",
              "versionType": "git"
            },
            {
              "lessThan": "b770fcfcdced569bcf7c6982aeea8c3d11a21c2b",
              "status": "affected",
              "version": "9e6eba610c2eb68b05841a15ece1cf929c44aea3",
              "versionType": "git"
            },
            {
              "lessThan": "e2735b39f044bad7bf2017aef248935525bc0b97",
              "status": "affected",
              "version": "9e6eba610c2eb68b05841a15ece1cf929c44aea3",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/hwmon/asus_atk0110.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "2.6.32"
            },
            {
              "lessThan": "2.6.32",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.261",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.212",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.178",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.145",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.97",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.40",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.1.*",
              "status": "unaffected",
              "version": "7.1.5",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nhwmon: (asus_atk0110) Check package count before accessing element\n\natk_ec_present() walks the management group package returned by the GGRP\nACPI method and, for each sub-package, reads its first element:\n\n\tid = \u0026obj-\u003epackage.elements[0];\n\tif (id-\u003etype != ACPI_TYPE_INTEGER)\n\nwithout checking that the sub-package is non-empty.  ACPICA allocates the\nelement array with exactly package.count entries, so for a sub-package\nwith a zero count this reads past the allocation.\n\nThe sibling function atk_debugfs_ggrp_open() performs the same access but\nskips empty packages with a package.count check first.  Add the same\ncheck to atk_ec_present() so a malformed firmware package cannot trigger\nan out-of-bounds read."
    }
  ],
  "id": "CVE-2026-80593",
  "lastModified": "2026-08-29T07:16:44.467",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 8.4,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.5,
        "impactScore": 5.9,
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "type": "Secondary"
      }
    ]
  },
  "published": "2026-08-28T08:16:42.930",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/2a137124664aad1e36d8d74e8e2207365a04737f"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/459b0a0439ea65b2b612aa572eb62a2e26d05618"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/76392d35c8df471b288cfc6536bd092b3c8ee2cf"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/768f20e7bb48d723b82cb142120263d0806fbeb8"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/981a8a2e3773dc7e704943388a1fb97970b23275"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/b770fcfcdced569bcf7c6982aeea8c3d11a21c2b"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/d8d4fa0c4f818e30b6f6737bdd989b7e2b511cae"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/e2735b39f044bad7bf2017aef248935525bc0b97"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}



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