ghsa-22g9-2j29-w93q
Vulnerability from github
Published
2024-10-29 03:31
Modified
2024-11-01 18:31
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Details

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

btrfs: fix uninitialized pointer free in add_inode_ref()

The add_inode_ref() function does not initialize the "name" struct when it is declared. If any of the following calls to "read_one_inode() returns NULL,

dir = read_one_inode(root, parent_objectid);
if (!dir) {
    ret = -ENOENT;
    goto out;
}

inode = read_one_inode(root, inode_objectid);
if (!inode) {
    ret = -EIO;
    goto out;
}

then "name.name" would be freed on "out" before being initialized.

out: ... kfree(name.name);

This issue was reported by Coverity with CID 1526744.

Show details on source website

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{
  "affected": [],
  "aliases": [
    "CVE-2024-50088"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-824"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-10-29T01:15:05Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: fix uninitialized pointer free in add_inode_ref()\n\nThe add_inode_ref() function does not initialize the \"name\" struct when\nit is declared.  If any of the following calls to \"read_one_inode()\nreturns NULL,\n\n\tdir = read_one_inode(root, parent_objectid);\n\tif (!dir) {\n\t\tret = -ENOENT;\n\t\tgoto out;\n\t}\n\n\tinode = read_one_inode(root, inode_objectid);\n\tif (!inode) {\n\t\tret = -EIO;\n\t\tgoto out;\n\t}\n\nthen \"name.name\" would be freed on \"out\" before being initialized.\n\nout:\n\t...\n\tkfree(name.name);\n\nThis issue was reported by Coverity with CID 1526744.",
  "id": "GHSA-22g9-2j29-w93q",
  "modified": "2024-11-01T18:31:32Z",
  "published": "2024-10-29T03:31:06Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-50088"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/12cf028381aa19bc38465341512c280256e8d82d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/66691c6e2f18d2aa4b22ffb624b9bdc97e9979e4"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a941f3d5b1469c60a7e70e775584f110b47e0d16"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e11ce03b58743bf1e096c48fcaa7e6f08eb75dfa"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}


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