ghsa-jxx5-v8qw-45p6
Vulnerability from github
Published
2024-12-29 12:30
Modified
2025-01-08 00:30
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:

PCI: Fix reset_method_store() memory leak

In reset_method_store(), a string is allocated via kstrndup() and assigned to the local "options". options is then used in with strsep() to find spaces:

while ((name = strsep(&options, " ")) != NULL) {

If there are no remaining spaces, then options is set to NULL by strsep(), so the subsequent kfree(options) doesn't free the memory allocated via kstrndup().

Fix by using a separate tmp_options to iterate with strsep() so options is preserved.

Show details on source website

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{
  "affected": [],
  "aliases": [
    "CVE-2024-56745"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-401"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-12-29T12:15:07Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nPCI: Fix reset_method_store() memory leak\n\nIn reset_method_store(), a string is allocated via kstrndup() and assigned\nto the local \"options\". options is then used in with strsep() to find\nspaces:\n\n  while ((name = strsep(\u0026options, \" \")) != NULL) {\n\nIf there are no remaining spaces, then options is set to NULL by strsep(),\nso the subsequent kfree(options) doesn\u0027t free the memory allocated via\nkstrndup().\n\nFix by using a separate tmp_options to iterate with strsep() so options is\npreserved.",
  "id": "GHSA-jxx5-v8qw-45p6",
  "modified": "2025-01-08T00:30:48Z",
  "published": "2024-12-29T12:30:41Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-56745"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2985b1844f3f3447f2d938eff1ef6762592065a5"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/403efb4457c0c8f8f51e904cc57d39193780c6bd"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/543d0eb40e45c6a51f1bff02f417b602e54472d5"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8e098baf6bc3f3a6aefc383509aba07e202f7ee0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/931d07ccffcc3614f20aaf602b31e89754e21c59"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/fe6fae61f3b993160aef5fe2b7141a83872c144f"
    }
  ],
  "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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