ghsa-383j-f5vg-3hcm
Vulnerability from github
Published
2024-10-21 12:30
Modified
2024-10-23 21:30
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Details

In the Linux kernel, the following vulnerability has been resolved:

ext4: check stripe size compatibility on remount as well

We disable stripe size in __ext4_fill_super if it is not a multiple of the cluster ratio however this check is missed when trying to remount. This can leave us with cases where stripe < cluster_ratio after remount:set making EXT4_B2C(sbi->s_stripe) become 0 that can cause some unforeseen bugs like divide by 0.

Fix that by adding the check in remount path as well.

Show details on source website

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{
   affected: [],
   aliases: [
      "CVE-2024-47700",
   ],
   database_specific: {
      cwe_ids: [
         "CWE-369",
      ],
      github_reviewed: false,
      github_reviewed_at: null,
      nvd_published_at: "2024-10-21T12:15:06Z",
      severity: "MODERATE",
   },
   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.",
   id: "GHSA-383j-f5vg-3hcm",
   modified: "2024-10-23T21:30:28Z",
   published: "2024-10-21T12:30:55Z",
   references: [
      {
         type: "ADVISORY",
         url: "https://nvd.nist.gov/vuln/detail/CVE-2024-47700",
      },
      {
         type: "WEB",
         url: "https://git.kernel.org/stable/c/297615e992bbb30a55c158141086be6505d5d722",
      },
      {
         type: "WEB",
         url: "https://git.kernel.org/stable/c/a31b712f75445d52fc0451dc54fd7b16a552cb7c",
      },
      {
         type: "WEB",
         url: "https://git.kernel.org/stable/c/ee85e0938aa8f9846d21e4d302c3cf6a2a75110d",
      },
      {
         type: "WEB",
         url: "https://git.kernel.org/stable/c/faeff8b1ee2eaa5969c8e994d66c3337298cefed",
      },
   ],
   schema_version: "1.4.0",
   severity: [
      {
         score: "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
         type: "CVSS_V3",
      },
   ],
}


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