{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2024-47700",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2024-47700"
  ],
  "published": "2024-10-21T12:02:02Z",
  "summary": "ext4: check stripe size compatibility on remount as well",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\next4: check stripe size compatibility on remount as well\n\nWe disable stripe size in __ext4_fill_super if it is not a multiple of\nthe cluster ratio however this check is missed when trying to remount.\nThis can leave us with cases where stripe < cluster_ratio after\nremount:set making EXT4_B2C(sbi->s_stripe) become 0 that can cause some\nunforeseen bugs like divide by 0.\n\nFix that by adding the check in remount path as well.",
  "affected": [
    {
      "package": {
        "ecosystem": "Raspberry Pi OS:12",
        "name": "linux"
      },
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        "1:6.6.31-1+rpt1",
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        "1:6.6.51-1+rpt1",
        "1:6.6.51-1+rpt2",
        "1:6.6.51-1+rpt3"
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  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2024-47700"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/faeff8b1ee2eaa5969c8e994d66c3337298cefed"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/297615e992bbb30a55c158141086be6505d5d722"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/a31b712f75445d52fc0451dc54fd7b16a552cb7c"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/ee85e0938aa8f9846d21e4d302c3cf6a2a75110d"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-05-12T04:54:46Z"
  }
}