{
  "cveId": "CVE-2026-98951",
  "url": "https://patchblox.com/security/cve/CVE-2026-98951",
  "summary": "CVE-2026-98951 is fixed in linux on 1 platform by DEBIAN-CVE-2026-98951 (version 7.2.11-1), released October 24, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "riscv: ptrace: Zero-initialize regset buffers before copyin",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  riscv: ptrace: Zero-initialize regset buffers before copyin  user_regset_copyin() only copies \u0060count\u0060 bytes, so a PTRACE_SETREGSET request with a short iov_len leaves the rest of the stack buffer uninitialized. In riscv_vr_set() that garbage is validated and copied into the target\u0027s vstate, and in riscv_cfi_set() it can be stored as the target\u0027s shadow stack pointer. Zero both buffers, as the get path already does.",
  "published": "2026-10-23T13:17:16Z",
  "severity": "Important",
  "cvss": 7.1,
  "epss": 0.00156,
  "epssPercentile": 0.0477,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-98951",
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "7.2.11-1",
      "fix": "DEBIAN-CVE-2026-98951",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-98951",
      "released": "2026-10-24T13:25:57Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T06:59:42Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}