ghsa-r7rx-q42q-vq8v
Vulnerability from github
Published
2024-08-26 12:31
Modified
2024-08-27 15:32
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:

btrfs: fix double inode unlock for direct IO sync writes

If we do a direct IO sync write, at btrfs_sync_file(), and we need to skip inode logging or we get an error starting a transaction or an error when flushing delalloc, we end up unlocking the inode when we shouldn't under the 'out_release_extents' label, and then unlock it again at btrfs_direct_write().

Fix that by checking if we have to skip inode unlocking under that label.

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{
  "affected": [],
  "aliases": [
    "CVE-2024-43885"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-667"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-08-26T11:15:03Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: fix double inode unlock for direct IO sync writes\n\nIf we do a direct IO sync write, at btrfs_sync_file(), and we need to skip\ninode logging or we get an error starting a transaction or an error when\nflushing delalloc, we end up unlocking the inode when we shouldn\u0027t under\nthe \u0027out_release_extents\u0027 label, and then unlock it again at\nbtrfs_direct_write().\n\nFix that by checking if we have to skip inode unlocking under that label.",
  "id": "GHSA-r7rx-q42q-vq8v",
  "modified": "2024-08-27T15:32:43Z",
  "published": "2024-08-26T12:31:18Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-43885"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1a607d22dea4f60438747705495ec4d0af2ec451"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7ba27f14161fc20c4fc0051658a22ddd832eb0aa"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8bd4c9220416111500c275546c69c63d42185793"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d924a0be2f218501588cf463d70f1c71afea06d9"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e0391e92f9ab4fb3dbdeb139c967dcfa7ac4b115"
    }
  ],
  "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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