ghsa-cmrj-7qg8-pwx8
Vulnerability from github
Published
2024-07-16 12:30
Modified
2025-10-07 21:31
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:

audit: don't deref the syscall args when checking the openat2 open_how::flags

As reported by Jeff, dereferencing the openat2 syscall argument in audit_match_perm() to obtain the open_how::flags can result in an oops/page-fault. This patch fixes this by using the open_how struct that we store in the audit_context with audit_openat2_how().

Independent of this patch, Richard Guy Briggs posted a similar patch to the audit mailing list roughly 40 minutes after this patch was posted.

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{
  "affected": [],
  "aliases": [
    "CVE-2022-48832"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-07-16T12:15:06Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\naudit: don\u0027t deref the syscall args when checking the openat2 open_how::flags\n\nAs reported by Jeff, dereferencing the openat2 syscall argument in\naudit_match_perm() to obtain the open_how::flags can result in an\noops/page-fault.  This patch fixes this by using the open_how struct\nthat we store in the audit_context with audit_openat2_how().\n\nIndependent of this patch, Richard Guy Briggs posted a similar patch\nto the audit mailing list roughly 40 minutes after this patch was\nposted.",
  "id": "GHSA-cmrj-7qg8-pwx8",
  "modified": "2025-10-07T21:31:02Z",
  "published": "2024-07-16T12:30:41Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-48832"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/310c9ddfdf1f8d3c9834f02175eae79c8b254b6c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7a82f89de92aac5a244d3735b2bd162c1147620c"
    }
  ],
  "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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