ghsa-q4w5-8ph4-32c6
Vulnerability from github
Published
2025-12-16 15:30
Modified
2025-12-16 15:30
Details

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

cpufreq/longhaul: handle NULL policy in longhaul_exit

longhaul_exit() was calling cpufreq_cpu_get(0) without checking for a NULL policy pointer. On some systems, this could lead to a NULL dereference and a kernel warning or panic.

This patch adds a check using unlikely() and returns early if the policy is NULL.

Bugzilla: #219962

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{
  "affected": [],
  "aliases": [
    "CVE-2025-68177"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-12-16T14:15:49Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ncpufreq/longhaul: handle NULL policy in longhaul_exit\n\nlonghaul_exit() was calling cpufreq_cpu_get(0) without checking\nfor a NULL policy pointer. On some systems, this could lead to a\nNULL dereference and a kernel warning or panic.\n\nThis patch adds a check using unlikely() and returns early if the\npolicy is NULL.\n\nBugzilla: #219962",
  "id": "GHSA-q4w5-8ph4-32c6",
  "modified": "2025-12-16T15:30:44Z",
  "published": "2025-12-16T15:30:44Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-68177"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/55cf586b9556863e3c2a45460aba71bcb2be5bcd"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/592532a77b736b5153e0c2e4c74aa50af0a352ab"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/64adabb6d9d51b7e7c02fe733346a2c4dd738488"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/809cf2a7794ca4c14c304b349f4c3ae220701ce4"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8d6791c480f22d6e9a566eaa77336d3d37c5c591"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/956b56d17a89775e4957bbddefa45cd3c6c71000"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b02352dd2e6cca98777714cc2a27553191df70db"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/fd93e1d71b3b14443092919be12b1abf08de35eb"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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