ghsa-3835-qhjh-269w
Vulnerability from github
Published
2025-06-18 12:30
Modified
2025-11-14 18:31
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:

btrfs: fix possible memory leak in btrfs_get_dev_args_from_path()

In btrfs_get_dev_args_from_path(), btrfs_get_bdev_and_sb() can fail if the path is invalid. In this case, btrfs_get_dev_args_from_path() returns directly without freeing args->uuid and args->fsid allocated before, which causes memory leak.

To fix these possible leaks, when btrfs_get_bdev_and_sb() fails, btrfs_put_dev_args_from_path() is called to clean up the memory.

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{
  "affected": [],
  "aliases": [
    "CVE-2022-49996"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-401"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-06-18T11:15:27Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: fix possible memory leak in btrfs_get_dev_args_from_path()\n\nIn btrfs_get_dev_args_from_path(), btrfs_get_bdev_and_sb() can fail if\nthe path is invalid. In this case, btrfs_get_dev_args_from_path()\nreturns directly without freeing args-\u003euuid and args-\u003efsid allocated\nbefore, which causes memory leak.\n\nTo fix these possible leaks, when btrfs_get_bdev_and_sb() fails,\nbtrfs_put_dev_args_from_path() is called to clean up the memory.",
  "id": "GHSA-3835-qhjh-269w",
  "modified": "2025-11-14T18:31:23Z",
  "published": "2025-06-18T12:30:40Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-49996"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4b124ad87244cd7f0883c5eaa38d2326b2154cad"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5f52402c77013e4a826394b807dd5ea4dc83bd72"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9ea0106a7a3d8116860712e3f17cd52ce99f6707"
    }
  ],
  "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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