{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2024-26777",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2024-26777"
  ],
  "published": "2024-04-03T17:31:22Z",
  "summary": "fbdev: sis: Error out if pixclock equals zero",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nfbdev: sis: Error out if pixclock equals zero\n\nThe userspace program could pass any values to the driver through\nioctl() interface. If the driver doesn't check the value of pixclock,\nit may cause divide-by-zero error.\n\nIn sisfb_check_var(), var->pixclock is used as a divisor to caculate\ndrate before it is checked against zero. Fix this by checking it\nat the beginning.\n\nThis is similar to CVE-2022-3061 in i740fb which was fixed by\ncommit 15cf0b8.",
  "affected": [
    {
      "package": {
        "ecosystem": "Raspberry Pi OS:12",
        "name": "linux"
      },
      "versions": [
        "1:6.1.47-1+rpt4"
      ],
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-2712",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v6",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v7",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v7l",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v8",
            "binary_version": "1:6.1.47-1+rpt4"
          }
        ]
      },
      "database_specific": {
        "per_version": {
          "1:6.1.47-1+rpt4": {
            "linux_commit": "655fc658a15ae7a6f37103754adb39ba52a9a14e",
            "upstream_version": "6.1.47",
            "assessment": "commit ancestry (strak rule)",
            "upstream_fixed": "6.1.80",
            "compiled_filter": false
          }
        }
      }
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2024-26777"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/84246c35ca34207114055a87552a1c4289c8fd7e"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/6db07619d173765bd8622d63809cbfe361f04207"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/cd36da760bd1f78c63c7078407baf01dd724f313"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/df6e2088c6f4cad539cf67cba2d6764461e798d1"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/f329523f6a65c3bbce913ad35473d83a319d5d99"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/99f1abc34a6dde248d2219d64aa493c76bbdd9eb"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/1d11dd3ea5d039c7da089f309f39c4cd363b924b"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/e421946be7d9bf545147bea8419ef8239cb7ca52"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-05-12T04:54:46Z"
  }
}