ghsa-cxc4-ppv4-gfgj
Vulnerability from github
Published
2024-10-29 03:31
Modified
2025-11-04 00:31
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 uninitialized pointer free on read_alloc_one_name() error

The function read_alloc_one_name() does not initialize the name field of the passed fscrypt_str struct if kmalloc fails to allocate the corresponding buffer. Thus, it is not guaranteed that fscrypt_str.name is initialized when freeing it.

This is a follow-up to the linked patch that fixes the remaining instances of the bug introduced by commit e43eec81c516 ("btrfs: use struct qstr instead of name and namelen pairs").

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{
  "affected": [],
  "aliases": [
    "CVE-2024-50087"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-824"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-10-29T01:15:05Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: fix uninitialized pointer free on read_alloc_one_name() error\n\nThe function read_alloc_one_name() does not initialize the name field of\nthe passed fscrypt_str struct if kmalloc fails to allocate the\ncorresponding buffer.  Thus, it is not guaranteed that\nfscrypt_str.name is initialized when freeing it.\n\nThis is a follow-up to the linked patch that fixes the remaining\ninstances of the bug introduced by commit e43eec81c516 (\"btrfs: use\nstruct qstr instead of name and namelen pairs\").",
  "id": "GHSA-cxc4-ppv4-gfgj",
  "modified": "2025-11-04T00:31:51Z",
  "published": "2024-10-29T03:31:06Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-50087"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1ec28de5e476913ae51f909660b4447eddb28838"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2ab5e243c2266c841e0f6904fad1514b18eaf510"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7fc7c47b9ba0cf2d192f2117a64b24881b0b577f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b37de9491f140a0ff125c27dd1050185c3accbc1"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"
    }
  ],
  "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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