{
  "schema_version": "1.4.0",
  "id": "GHSA-qx8p-8rg2-4j84",
  "modified": "2025-04-12T13:06:50Z",
  "published": "2022-05-17T03:05:27Z",
  "aliases": [
    "CVE-2016-9644"
  ],
  "details": "The __get_user_asm_ex macro in arch/x86/include/asm/uaccess.h in the Linux kernel 4.4.22 through 4.4.28 contains extended asm statements that are incompatible with the exception table, which allows local users to obtain root access on non-SMEP platforms via a crafted application.  NOTE: this vulnerability exists because of incorrect backporting of the CVE-2016-9178 patch to older kernels.",
  "severity": [
    {
      "type": "CVSS_V3",
      "score": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"
    }
  ],
  "affected": [],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2016-9644"
    },
    {
      "type": "WEB",
      "url": "https://lwn.net/Articles/705220"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2016/11/07/4"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/94545"
    },
    {
      "type": "WEB",
      "url": "http://www.ubuntu.com/usn/USN-3146-1"
    },
    {
      "type": "WEB",
      "url": "http://www.ubuntu.com/usn/USN-3146-2"
    }
  ],
  "database_specific": {
    "cwe_ids": [],
    "severity": "HIGH",
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2016-11-28T03:59:00Z"
  }
}