{
  "cveId": "CVE-2026-90306",
  "url": "https://patchblox.com/security/cve/CVE-2026-90306",
  "summary": "CVE-2026-90306 is fixed in linux on 1 platform by DEBIAN-CVE-2026-90306 (version 7.2.6-1), released September 23, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "ARM: 9481/2: breakpoint: CFI breakpoints only on demand",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  ARM: 9481/2: breakpoint: CFI breakpoints only on demand  This removes the stub hw_breakpoint_cfi_handler() from ARM, making it not steal breakpoint type 0x03 (ARM_ENTRY_CFI_BREAKPOINT) unless CFI is actively used in the kernel.  When not instrumenting with CFI, or when a breakpoint is issued in userspace, we fall through to return 1 from hw_breakpoint_pending() \u0022unhandled fault\u0022 so userspace can make use of this breakpoint.  Tested with LKDTM and this command line: echo CFI_FORWARD_PROTO \u003E /sys/kernel/debug/provoke-crash/DIRECT still works as expected.",
  "published": "2026-09-17T17:17:28Z",
  "severity": "",
  "epss": 0.00206,
  "epssPercentile": 0.10778,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-90306",
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "7.2.6-1",
      "fix": "DEBIAN-CVE-2026-90306",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-90306",
      "released": "2026-09-23T19:19:02Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T13:06:02Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}