{
  "cveId": "CVE-2026-63863",
  "url": "https://patchblox.com/security/cve/CVE-2026-63863",
  "summary": "CVE-2026-63863 is fixed in linux on 1 platform by DEBIAN-CVE-2026-63863 (version 7.0.10-1), released July 20, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  drm/gpusvm: Fix unbalanced unlock in drm_gpusvm_...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  drm/gpusvm: Fix unbalanced unlock in drm_gpusvm_scan_mm()  There is a unbalanced lock/unlock to gpusvm notifier lock: [  931.045868] ===================================== [  931.046509] WARNING: bad unlock balance detected! [  931.047149] 6.19.0-rc6\u002Bxe-**************** #9 Tainted: G     U [  931.048150] ------------------------------------- [  931.048790] kworker/u5:0/51 is trying to release lock (\u0026gpusvm-\u003Enotifier_lock) at: [  931.049801] [\u003Cffffffffa090c0d8\u003E] drm_gpusvm_scan_mm\u002B0x188/0x460 [drm_gpusvm_helper] [  931.050802] but there are no more locks to release! [  931.051463]  The drm_gpusvm_notifier_unlock() sits under err_free label and the first jump to err_free is just before calling the drm_gpusvm_notifier_lock() causing unbalanced unlock.",
  "published": "2026-07-19T15:16:53Z",
  "severity": "high",
  "cvss": 8.8,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
  "epss": 0.00127,
  "epssPercentile": 0.0243,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "7.0.10-1",
      "fix": "DEBIAN-CVE-2026-63863",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-63863",
      "released": "2026-07-20T12:58:36Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-09T19:38:12Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}