{
  "cveId": "CVE-2024-38667",
  "url": "https://patchblox.com/security/cve/CVE-2024-38667",
  "summary": "CVE-2024-38667 is fixed in linux on 1 platform, first by DEBIAN-CVE-2024-38667, released June 24, 2024. It is not reported as exploited. Patch Radar priority: High.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  riscv: prevent pt_regs corruption for secondary...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  riscv: prevent pt_regs corruption for secondary idle threads  Top of the kernel thread stack should be reserved for pt_regs. However this is not the case for the idle threads of the secondary boot harts. Their stacks overlap with their pt_regs, so both may get corrupted.  Similar issue has been fixed for the primary hart, see c7cdd96eca28 (\u0022riscv: prevent stack corruption by reserving task_pt_regs(p) early\u0022). However that fix was not propagated to the secondary harts. The problem has been noticed in some CPU hotplug tests with V enabled. The function smp_callin stored several registers on stack, corrupting top of pt_regs structure including status field. As a result, kernel attempted to save or restore inexistent V context.",
  "published": "2024-06-24T14:15:12Z",
  "severity": "high",
  "cvss": 7.8,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
  "epss": 0.00228,
  "epssPercentile": 0.1366,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "6.1.94-1",
      "fix": "DEBIAN-CVE-2024-38667",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2024-38667",
      "released": "2024-06-24T14:15:12Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "6.9.7-1",
      "fix": "DEBIAN-CVE-2024-38667",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2024-38667",
      "released": "2024-06-24T14:15:12Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "6.9.7-1",
      "fix": "DEBIAN-CVE-2024-38667",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2024-38667",
      "released": "2024-06-24T14:15:12Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T19:12:23Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}