{
  "cveId": "CVE-2026-43347",
  "url": "https://patchblox.com/security/cve/CVE-2026-43347",
  "summary": "CVE-2026-43347 is fixed in linux on 1 platform by DEBIAN-CVE-2026-43347 (version 6.19.14-1), released May 15, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  arm64: dts: qcom: monaco: Reserve full Gunyah me...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  arm64: dts: qcom: monaco: Reserve full Gunyah metadata region  We observe spurious \u0022Synchronous External Abort\u0022 exceptions (ESR=0x96000010) and kernel crashes on Monaco-based platforms. These faults are caused by the kernel inadvertently accessing hypervisor-owned memory that is not properly marked as reserved.  \u003EFrom boot log, The Qualcomm hypervisor reports the memory range at 0x91a80000 of size 0x80000 (512 KiB) as hypervisor-owned: qhee_hyp_assign_remove_memory: 0x91a80000/0x80000 -\u003E ret 0  However, the EFI memory map provided by firmware only reserves the subrange 0x91a40000\u20130x91a87fff (288 KiB). The remaining portion (0x91a88000\u20130x91afffff) is incorrectly reported as conventional memory (from efi debug): efi:   0x000091a40000-0x000091a87fff [Reserved...] efi:   0x000091a88000-0x0000938fffff [Conventional...]  As a result, the allocator may hand out PFNs inside the hypervisor owned region, causing fatal aborts when the kernel accesses those addresses.  Add a reserved-memory carveout for the Gunyah hypervisor metadata at 0x91a80000 (512 KiB) and mark it as no-map so Linux does not map or allocate from this area.  For the record: Hyp version: gunyah-e78adb36e debug (2025-11-17 05:38:05 UTC) UEFI Ver: 6.0.260122.BOOT.MXF.1.0.c1-00449-KODIAKLA-1",
  "published": "2026-05-08T14:16:44Z",
  "severity": "high",
  "cvss": 7.5,
  "cvssVector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
  "epss": 0.00335,
  "epssPercentile": 0.26982,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "6.19.14-1",
      "fix": "DEBIAN-CVE-2026-43347",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-43347",
      "released": "2026-05-15T16:01:09Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T00:53:09Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}