ghsa-vcc4-4xc8-8rmc
Vulnerability from github
Published
2024-05-21 18:31
Modified
2024-05-21 18:31
Details

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

f2fs: avoid format-overflow warning

With gcc and W=1 option, there's a warning like this:

fs/f2fs/compress.c: In function ‘f2fs_init_page_array_cache’: fs/f2fs/compress.c:1984:47: error: ‘%u’ directive writing between 1 and 7 bytes into a region of size between 5 and 8 [-Werror=format-overflow=] 1984 | sprintf(slab_name, "f2fs_page_array_entry-%u:%u", MAJOR(dev), MINOR(dev)); | ^~

String "f2fs_page_array_entry-%u:%u" can up to 35. The first "%u" can up to 4 and the second "%u" can up to 7, so total size is "24 + 4 + 7 = 35". slab_name's size should be 35 rather than 32.

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{
  "affected": [],
  "aliases": [
    "CVE-2023-52748"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-05-21T16:15:14Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nf2fs: avoid format-overflow warning\n\nWith gcc and W=1 option, there\u0027s a warning like this:\n\nfs/f2fs/compress.c: In function \u2018f2fs_init_page_array_cache\u2019:\nfs/f2fs/compress.c:1984:47: error: \u2018%u\u2019 directive writing between\n1 and 7 bytes into a region of size between 5 and 8\n[-Werror=format-overflow=]\n 1984 |  sprintf(slab_name, \"f2fs_page_array_entry-%u:%u\", MAJOR(dev),\n\t\tMINOR(dev));\n      |                                               ^~\n\nString \"f2fs_page_array_entry-%u:%u\" can up to 35. The first \"%u\" can up\nto 4 and the second \"%u\" can up to 7, so total size is \"24 + 4 + 7 = 35\".\nslab_name\u0027s size should be 35 rather than 32.",
  "id": "GHSA-vcc4-4xc8-8rmc",
  "modified": "2024-05-21T18:31:20Z",
  "published": "2024-05-21T18:31:19Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-52748"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3eebe636cac53886bd5d1cdd55e082ec9e84983f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/526dd7540a09ecf87b5f54f3ab4e0a2528f25a79"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6fca08fd3085253b48fcb1bd243a0a5e18821a00"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c041f5ddef00c731c541e00bc8ae97b8c84c682f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e0d4e8acb3789c5a8651061fbab62ca24a45c063"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e4088d7d8f1123006d46a42edf51b8c960a58ef9"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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