{
  "cveId": "CVE-2022-49001",
  "url": "https://patchblox.com/security/cve/CVE-2022-49001",
  "summary": "CVE-2022-49001 is fixed in linux on 1 platform, first by DEBIAN-CVE-2022-49001, released October 21, 2024. It is not reported as exploited. Patch Radar priority: High.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  riscv: fix race when vmap stack overflow  Curren...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  riscv: fix race when vmap stack overflow  Currently, when detecting vmap stack overflow, riscv firstly switches to the so called shadow stack, then use this shadow stack to call the get_overflow_stack() to get the overflow stack. However, there\u0027s a race here if two or more harts use the same shadow stack at the same time.  To solve this race, we introduce spin_shadow_stack atomic var, which will be swap between its own address and 0 in atomic way, when the var is set, it means the shadow_stack is being used; when the var is cleared, it means the shadow_stack isn\u0027t being used.  [Palmer: Add AQ to the swap, and also some comments.]",
  "published": "2024-10-21T20:15:11Z",
  "severity": "high",
  "cvss": 7,
  "cvssVector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
  "epss": 0.0019,
  "epssPercentile": 0.08686,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "6.0.12-1",
      "fix": "DEBIAN-CVE-2022-49001",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-49001",
      "released": "2024-10-21T20:15:11Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "6.0.12-1",
      "fix": "DEBIAN-CVE-2022-49001",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-49001",
      "released": "2024-10-21T20:15:11Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "6.0.12-1",
      "fix": "DEBIAN-CVE-2022-49001",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-49001",
      "released": "2024-10-21T20:15:11Z"
    }
  ],
  "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"
  }
}