FKIE_CVE-2026-53068

Vulnerability from fkie_nvd - Published: 2026-06-24 17:17 - Updated: 2026-06-28 08:16
Severity
7.1 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: drm/komeda: fix integer overflow in AFBC framebuffer size check The AFBC framebuffer size validation calculates the minimum required buffer size by adding the AFBC payload size to the framebuffer offset. This addition is performed without checking for integer overflow. If the addition oveflows, the size check may incorrectly succed and allow userspace to provide an undersized drm_gem_object, potentially leading to out-of-bounds memory access. Add usage of check_add_overflow() to safely compute the minimum required size and reject the framebuffer if an overflow is detected. This makes the AFBC size validation more robust against malformed. Found by Linux Verification Center (linuxtesting.org) with SVACE.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/02ff8a7d3d0eecc546b9ab4c07b3d7c65d485583
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/779ec12c85c9e4547519e3903a371a3b26a289de
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/8165e8b28fdf392c2c7412518d602b4f193812a8
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/872d923b852705054bc099af663da862fdc1097d
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a3a2a9bdc0f9c2d863a5a290cb2d4a565f7268e7
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d8a541906860aa3519b1874780d933c766918a7c
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e27b58095d7d3ac72f230e318838dee956258460
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/fe1f80f8f6e8611ac6349b9d464e8750443390cf
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/arm/display/komeda/komeda_framebuffer.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "a3a2a9bdc0f9c2d863a5a290cb2d4a565f7268e7",
              "status": "affected",
              "version": "65ad2392dd6d1691db93e82b08d3311298b9d64a",
              "versionType": "git"
            },
            {
              "lessThan": "e27b58095d7d3ac72f230e318838dee956258460",
              "status": "affected",
              "version": "65ad2392dd6d1691db93e82b08d3311298b9d64a",
              "versionType": "git"
            },
            {
              "lessThan": "02ff8a7d3d0eecc546b9ab4c07b3d7c65d485583",
              "status": "affected",
              "version": "65ad2392dd6d1691db93e82b08d3311298b9d64a",
              "versionType": "git"
            },
            {
              "lessThan": "d8a541906860aa3519b1874780d933c766918a7c",
              "status": "affected",
              "version": "65ad2392dd6d1691db93e82b08d3311298b9d64a",
              "versionType": "git"
            },
            {
              "lessThan": "8165e8b28fdf392c2c7412518d602b4f193812a8",
              "status": "affected",
              "version": "65ad2392dd6d1691db93e82b08d3311298b9d64a",
              "versionType": "git"
            },
            {
              "lessThan": "fe1f80f8f6e8611ac6349b9d464e8750443390cf",
              "status": "affected",
              "version": "65ad2392dd6d1691db93e82b08d3311298b9d64a",
              "versionType": "git"
            },
            {
              "lessThan": "872d923b852705054bc099af663da862fdc1097d",
              "status": "affected",
              "version": "65ad2392dd6d1691db93e82b08d3311298b9d64a",
              "versionType": "git"
            },
            {
              "lessThan": "779ec12c85c9e4547519e3903a371a3b26a289de",
              "status": "affected",
              "version": "65ad2392dd6d1691db93e82b08d3311298b9d64a",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/arm/display/komeda/komeda_framebuffer.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.3"
            },
            {
              "lessThan": "5.3",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.258",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.209",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.175",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.141",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.91",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.33",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.0.*",
              "status": "unaffected",
              "version": "7.0.10",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.1",
              "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\ndrm/komeda: fix integer overflow in AFBC framebuffer size check\n\nThe AFBC framebuffer size validation calculates the minimum required\nbuffer size by adding the AFBC payload size to the framebuffer offset.\nThis addition is performed without checking for integer overflow.\n\nIf the addition oveflows, the size check may incorrectly succed and\nallow userspace to provide an undersized drm_gem_object, potentially\nleading to out-of-bounds memory access.\n\nAdd usage of check_add_overflow() to safely compute the minimum\nrequired size and reject the framebuffer if an overflow is detected.\nThis makes the AFBC size validation more robust against malformed.\n\nFound by Linux Verification Center (linuxtesting.org) with SVACE."
    }
  ],
  "id": "CVE-2026-53068",
  "lastModified": "2026-06-28T08:16:32.120",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.1,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.2,
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "type": "Secondary"
      }
    ]
  },
  "published": "2026-06-24T17:17:19.900",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/02ff8a7d3d0eecc546b9ab4c07b3d7c65d485583"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/779ec12c85c9e4547519e3903a371a3b26a289de"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/8165e8b28fdf392c2c7412518d602b4f193812a8"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/872d923b852705054bc099af663da862fdc1097d"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/a3a2a9bdc0f9c2d863a5a290cb2d4a565f7268e7"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/d8a541906860aa3519b1874780d933c766918a7c"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/e27b58095d7d3ac72f230e318838dee956258460"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/fe1f80f8f6e8611ac6349b9d464e8750443390cf"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}


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