fkie_cve-2024-50218
Vulnerability from fkie_nvd
Published
2024-11-09 11:15
Modified
2025-10-08 15:03
Summary
In the Linux kernel, the following vulnerability has been resolved: ocfs2: pass u64 to ocfs2_truncate_inline maybe overflow Syzbot reported a kernel BUG in ocfs2_truncate_inline. There are two reasons for this: first, the parameter value passed is greater than ocfs2_max_inline_data_with_xattr, second, the start and end parameters of ocfs2_truncate_inline are "unsigned int". So, we need to add a sanity check for byte_start and byte_len right before ocfs2_truncate_inline() in ocfs2_remove_inode_range(), if they are greater than ocfs2_max_inline_data_with_xattr return -EINVAL.



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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nocfs2: pass u64 to ocfs2_truncate_inline maybe overflow\n\nSyzbot reported a kernel BUG in ocfs2_truncate_inline.  There are two\nreasons for this: first, the parameter value passed is greater than\nocfs2_max_inline_data_with_xattr, second, the start and end parameters of\nocfs2_truncate_inline are \"unsigned int\".\n\nSo, we need to add a sanity check for byte_start and byte_len right before\nocfs2_truncate_inline() in ocfs2_remove_inode_range(), if they are greater\nthan ocfs2_max_inline_data_with_xattr return -EINVAL."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ocfs2: pasar u64 a ocfs2_truncate_inline puede provocar un desbordamiento Syzbot inform\u00f3 de un ERROR del kernel en ocfs2_truncate_inline. Hay dos razones para esto: primero, el valor del par\u00e1metro pasado es mayor que ocfs2_max_inline_data_with_xattr, segundo, los par\u00e1metros de inicio y fin de ocfs2_truncate_inline son \"unsigned int\". Por lo tanto, debemos agregar una comprobaci\u00f3n de cordura para byte_start y byte_len justo antes de ocfs2_truncate_inline() en ocfs2_remove_inode_range(), si son mayores que ocfs2_max_inline_data_with_xattr devuelve -EINVAL."
    }
  ],
  "id": "CVE-2024-50218",
  "lastModified": "2025-10-08T15:03:50.847",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
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  "published": "2024-11-09T11:15:07.213",
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  "vulnStatus": "Analyzed",
  "weaknesses": [
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}


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