{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2024-26778",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2024-26778"
  ],
  "published": "2024-04-03T17:31:22Z",
  "summary": "fbdev: savage: Error out if pixclock equals zero",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nfbdev: savage: 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\nAlthough pixclock is checked in savagefb_decode_var(), but it is not\nchecked properly in savagefb_probe(). Fix this by checking whether\npixclock is zero in the function savagefb_check_var() before\ninfo->var.pixclock is used as the divisor.\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-2024-26778"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/224453de8505aede1890f007be973925a3edf6a1"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/84dce0f6a4cc5b7bfd7242ef9290db8ac1dd77ff"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/512ee6d6041e007ef5bf200c6e388e172a2c5b24"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/8c54acf33e5adaad6374bf3ec1e3aff0591cc8e1"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/070398d32c5f3ab0e890374904ad94551c76aec4"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/bc3c2e58d73b28b9a8789fca84778ee165a72d13"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/a9ca4e80d23474f90841251f4ac0d941fa337a01"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/04e5eac8f3ab2ff52fa191c187a46d4fdbc1e288"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-05-12T04:54:46Z"
  }
}