GHSA-2PR9-53X2-JQGH

Vulnerability from github – Published: 2024-08-17 09:30 – Updated: 2025-11-04 00:31
VLAI
Details

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

nilfs2: handle inconsistent state in nilfs_btnode_create_block()

Syzbot reported that a buffer state inconsistency was detected in nilfs_btnode_create_block(), triggering a kernel bug.

It is not appropriate to treat this inconsistency as a bug; it can occur if the argument block address (the buffer index of the newly created block) is a virtual block number and has been reallocated due to corruption of the bitmap used to manage its allocation state.

So, modify nilfs_btnode_create_block() and its callers to treat it as a possible filesystem error, rather than triggering a kernel bug.

Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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{
  "affected": [],
  "aliases": [
    "CVE-2024-42295"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-08-17T09:15:10Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnilfs2: handle inconsistent state in nilfs_btnode_create_block()\n\nSyzbot reported that a buffer state inconsistency was detected in\nnilfs_btnode_create_block(), triggering a kernel bug.\n\nIt is not appropriate to treat this inconsistency as a bug; it can occur\nif the argument block address (the buffer index of the newly created\nblock) is a virtual block number and has been reallocated due to\ncorruption of the bitmap used to manage its allocation state.\n\nSo, modify nilfs_btnode_create_block() and its callers to treat it as a\npossible filesystem error, rather than triggering a kernel bug.",
  "id": "GHSA-2pr9-53x2-jqgh",
  "modified": "2025-11-04T00:31:12Z",
  "published": "2024-08-17T09:30:24Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-42295"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/012be828a118bf496e666ef1fc47fc0e7358ada2"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/02b87e6334a38c65eef49848d3f1ac422f0b2a44"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/19cce46238ffe3546e44b9c74057103ff8b24c62"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/366c3f688dd0288cbe38af1d3a886b5c62372e4a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4811f7af6090e8f5a398fbdd766f903ef6c0d787"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5f0a6800b8aec1b453c7fe4c44fcaac5ffe9d52e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/be56dfc9be0604291267c07b0e27a69a6bda4899"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e34191cce3ee63dfa5fb241904aaf2a042d5b6d8"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2024/10/msg00003.html"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"
    }
  ],
  "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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