{
  "cveId": "CVE-2021-46971",
  "url": "https://patchblox.com/security/cve/CVE-2021-46971",
  "summary": "CVE-2021-46971 is fixed in linux on 1 platform, first by DEBIAN-CVE-2021-46971, released February 27, 2024. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  perf/core: Fix unconditional security_locked_dow...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  perf/core: Fix unconditional security_locked_down() call  Currently, the lockdown state is queried unconditionally, even though its result is used only if the PERF_SAMPLE_REGS_INTR bit is set in attr.sample_type. While that doesn\u0027t matter in case of the Lockdown LSM, it causes trouble with the SELinux\u0027s lockdown hook implementation.  SELinux implements the locked_down hook with a check whether the current task\u0027s type has the corresponding \u0022lockdown\u0022 class permission (\u0022integrity\u0022 or \u0022confidentiality\u0022) allowed in the policy. This means that calling the hook when the access control decision would be ignored generates a bogus permission check and audit record.  Fix this by checking sample_type first and only calling the hook when its result would be honored.",
  "published": "2024-02-27T19:04:07Z",
  "severity": "low",
  "cvss": 3.3,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N",
  "epss": 0.0023,
  "epssPercentile": 0.13951,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "5.10.38-1",
      "fix": "DEBIAN-CVE-2021-46971",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2021-46971",
      "released": "2024-02-27T19:04:07Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "5.10.38-1",
      "fix": "DEBIAN-CVE-2021-46971",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2021-46971",
      "released": "2024-02-27T19:04:07Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "5.10.38-1",
      "fix": "DEBIAN-CVE-2021-46971",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2021-46971",
      "released": "2024-02-27T19:04:07Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-09T01:18:40Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}