ghsa-3pqf-hwqx-7c78
Vulnerability from github
Published
2025-06-18 12:30
Modified
2025-11-18 03:31
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:

memstick/ms_block: Fix a memory leak

'erased_blocks_bitmap' is never freed. As it is allocated at the same time as 'used_blocks_bitmap', it is likely that it should be freed also at the same time.

Add the corresponding bitmap_free() in msb_data_clear().

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{
  "affected": [],
  "aliases": [
    "CVE-2022-50140"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-401"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-06-18T11:15:43Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmemstick/ms_block: Fix a memory leak\n\n\u0027erased_blocks_bitmap\u0027 is never freed. As it is allocated at the same time\nas \u0027used_blocks_bitmap\u0027, it is likely that it should be freed also at the\nsame time.\n\nAdd the corresponding bitmap_free() in msb_data_clear().",
  "id": "GHSA-3pqf-hwqx-7c78",
  "modified": "2025-11-18T03:31:14Z",
  "published": "2025-06-18T12:30:50Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-50140"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/16e07966638717416abf45393d6a80a5a1034429"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/37958980eb4cd71ae594ace093c11b6a91e165e8"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/39be95d1ff7b44c1e969af72ba9da7332dfcc1da"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/54eb7a55be6779c4d0c25eaf5056498a28595049"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9260a154b3b5e387dbceec7c0ac441470646bc6f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/961d7d12080fe70847f944d656e36cd0dd0214ba"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9d8b911fe3c3ed788c66edba7c90e32a4a7a5f53"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/efd675246aec045507b9425c67b548cc2d782d8f"
    }
  ],
  "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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