FKIE_CVE-2026-68270

Vulnerability from fkie_nvd - Published: 2026-08-10 13:20 - Updated: 2026-08-17 05:18
Severity
Summary
In the Linux kernel, the following vulnerability has been resolved: drm/sysfb: Avoid possible truncation with calculating visible size Calculating the visible size of the system framebuffer can result in truncation of the result. The calculation uses 32-bit arithmetics, which can overflow if the values for height and stride are large. Fix the issue by multiplying with mul_u32_u32().
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/154795885e8f0033c918c815aece543168bee670
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/9d58a811739a365cd693192f4b5344d736967a88
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b771974988ec7ce077a7246fa0fa588c246fe581
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/sysfb/drm_sysfb_screen_info.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "154795885e8f0033c918c815aece543168bee670",
              "status": "affected",
              "version": "32ae90c66fb62e4f6ae859422f733dfb249f10cf",
              "versionType": "git"
            },
            {
              "lessThan": "9d58a811739a365cd693192f4b5344d736967a88",
              "status": "affected",
              "version": "32ae90c66fb62e4f6ae859422f733dfb249f10cf",
              "versionType": "git"
            },
            {
              "lessThan": "b771974988ec7ce077a7246fa0fa588c246fe581",
              "status": "affected",
              "version": "32ae90c66fb62e4f6ae859422f733dfb249f10cf",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/sysfb/drm_sysfb_screen_info.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.16"
            },
            {
              "lessThan": "6.16",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.42",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.1.*",
              "status": "unaffected",
              "version": "7.1.6",
              "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\ndrm/sysfb: Avoid possible truncation with calculating visible size\n\nCalculating the visible size of the system framebuffer can result in\ntruncation of the result. The calculation uses 32-bit arithmetics,\nwhich can overflow if the values for height and stride are large. Fix\nthe issue by multiplying with mul_u32_u32()."
    }
  ],
  "id": "CVE-2026-68270",
  "lastModified": "2026-08-17T05:18:29.543",
  "metrics": {},
  "published": "2026-08-10T13:20:15.983",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/154795885e8f0033c918c815aece543168bee670"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/9d58a811739a365cd693192f4b5344d736967a88"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/b771974988ec7ce077a7246fa0fa588c246fe581"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}



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