{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "9fd688678dd86e3be32a35e3b2c5cc3ef0c4e257"
            },
            {
              "fixed": "88fc3dd6e631b3e2975f898c6c2b6bc6f7058b44"
            },
            {
              "fixed": "d70a5804c563b5e34825353ba9927509df709651"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.18.0"
            },
            {
              "fixed": "6.18.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/68xxx/CVE-2025-68350.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nexfat: fix divide-by-zero in exfat_allocate_bitmap\n\nThe variable max_ra_count can be 0 in exfat_allocate_bitmap(),\nwhich causes a divide-by-zero error in the subsequent modulo operation\n(i % max_ra_count), leading to a system crash.\nWhen max_ra_count is 0, it means that readahead is not used. This patch\nload the bitmap without readahead.",
  "id": "CVE-2025-68350",
  "modified": "2026-04-01T23:10:40.271650932Z",
  "published": "2025-12-24T10:32:41.931Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/88fc3dd6e631b3e2975f898c6c2b6bc6f7058b44"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d70a5804c563b5e34825353ba9927509df709651"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/68xxx/CVE-2025-68350.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-68350"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.7.3",
  "summary": "exfat: fix divide-by-zero in exfat_allocate_bitmap"
}