ghsa-9fjc-5v5w-9j3p
Vulnerability from github
Published
2024-07-12 15:31
Modified
2025-10-06 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:

f2fs: remove clear SB_INLINECRYPT flag in default_options

In f2fs_remount, SB_INLINECRYPT flag will be clear and re-set. If create new file or open file during this gap, these files will not use inlinecrypt. Worse case, it may lead to data corruption if wrappedkey_v0 is enable.

Thread A: Thread B:

-f2fs_remount -f2fs_file_open or f2fs_new_inode -default_options <- clear SB_INLINECRYPT flag

                                      -fscrypt_select_encryption_impl

-parse_options <- set SB_INLINECRYPT again

Show details on source website

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{
  "affected": [],
  "aliases": [
    "CVE-2024-40971"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-07-12T13:15:18Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nf2fs: remove clear SB_INLINECRYPT flag in default_options\n\nIn f2fs_remount, SB_INLINECRYPT flag will be clear and re-set.\nIf create new file or open file during this gap, these files\nwill not use inlinecrypt. Worse case, it may lead to data\ncorruption if wrappedkey_v0 is enable.\n\nThread A:                               Thread B:\n\n-f2fs_remount\t\t\t\t-f2fs_file_open or f2fs_new_inode\n  -default_options\n\t\u003c- clear SB_INLINECRYPT flag\n\n                                          -fscrypt_select_encryption_impl\n\n  -parse_options\n\t\u003c- set SB_INLINECRYPT again",
  "id": "GHSA-9fjc-5v5w-9j3p",
  "modified": "2025-10-06T21:30:27Z",
  "published": "2024-07-12T15:31:29Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-40971"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/38a82c8d00638bb642bef787eb1d5e0e4d3b7d71"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/724429db09e21ee153fef35e34342279d33df6ae"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a9cea0489c562c97cd56bb345e78939f9909e7f4"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ac5eecf481c29942eb9a862e758c0c8b68090c33"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ae39c8ec4250d2a35ddaab1c40faacfec306ff66"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/eddeb8d941d5be11a9da5637dbe81ac37e8449a2"
    }
  ],
  "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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