{
  "cveId": "CVE-2021-47567",
  "url": "https://patchblox.com/security/cve/CVE-2021-47567",
  "summary": "CVE-2021-47567 is fixed in linux on 1 platform, first by DEBIAN-CVE-2021-47567, released May 24, 2024. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  powerpc/32: Fix hardlockup on vmap stack overflo...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  powerpc/32: Fix hardlockup on vmap stack overflow  Since the commit c118c7303ad5 (\u0022powerpc/32: Fix vmap stack - Do not activate MMU before reading task struct\u0022) a vmap stack overflow results in a hard lockup. This is because emergency_ctx is still addressed with its virtual address allthough data MMU is not active anymore at that time.  Fix it by using a physical address instead.",
  "published": "2024-05-24T15:15:21Z",
  "severity": "medium",
  "cvss": 5.5,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
  "epss": 0.00224,
  "epssPercentile": 0.1306,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "5.15.15-1",
      "fix": "DEBIAN-CVE-2021-47567",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2021-47567",
      "released": "2024-05-24T15:15:21Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "5.15.15-1",
      "fix": "DEBIAN-CVE-2021-47567",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2021-47567",
      "released": "2024-05-24T15:15:21Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "5.15.15-1",
      "fix": "DEBIAN-CVE-2021-47567",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2021-47567",
      "released": "2024-05-24T15:15:21Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T13:06:02Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}