{
  "cveId": "CVE-2025-40126",
  "url": "https://patchblox.com/security/cve/CVE-2025-40126",
  "summary": "CVE-2025-40126 is fixed in linux on 1 platform, first by DEBIAN-CVE-2025-40126, released November 12, 2025. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  sparc: fix accurate exception reporting in copy_...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  sparc: fix accurate exception reporting in copy_{from_to}_user for UltraSPARC  The referenced commit introduced exception handlers on user-space memory references in copy_from_user and copy_to_user. These handlers return from the respective function and calculate the remaining bytes left to copy using the current register contents. This commit fixes a couple of bad calculations. This will fix the return value of copy_from_user and copy_to_user in the faulting case. The behaviour of memcpy stays unchanged.",
  "published": "2025-11-12T11:15:42Z",
  "severity": "",
  "epss": 0.0023,
  "epssPercentile": 0.13851,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "6.1.158-1",
      "fix": "DEBIAN-CVE-2025-40126",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2025-40126",
      "released": "2025-11-12T11:15:42Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "6.12.57-1",
      "fix": "DEBIAN-CVE-2025-40126",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2025-40126",
      "released": "2025-11-12T11:15:42Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "6.17.6-1",
      "fix": "DEBIAN-CVE-2025-40126",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2025-40126",
      "released": "2025-11-12T11:15:42Z"
    }
  ],
  "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"
  }
}