{
  "cveId": "CVE-2026-43097",
  "url": "https://patchblox.com/security/cve/CVE-2026-43097",
  "summary": "CVE-2026-43097 is fixed in linux on 1 platform by DEBIAN-CVE-2026-43097 (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:  PCI: hv: Fix double ida_free in hv_pci_probe err...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  PCI: hv: Fix double ida_free in hv_pci_probe error path  If hv_pci_probe() fails after storing the domain number in hbus-\u003Ebridge-\u003Edomain_nr, there is a call to free this domain_nr via pci_bus_release_emul_domain_nr(), however, during cleanup, the bridge release callback pci_release_host_bridge_dev() also frees the domain_nr causing ida_free to be called on same ID twice and triggering following warning:    ida_free called for id=28971 which is not allocated.   WARNING: lib/idr.c:594 at ida_free\u002B0xdf/0x160, CPU#0: kworker/0:2/198   Call Trace:    pci_bus_release_emul_domain_nr\u002B0x17/0x20    pci_release_host_bridge_dev\u002B0x4b/0x60    device_release\u002B0x3b/0xa0    kobject_put\u002B0x8e/0x220    devm_pci_alloc_host_bridge_release\u002B0xe/0x20    devres_release_all\u002B0x9a/0xd0    device_unbind_cleanup\u002B0x12/0xa0    really_probe\u002B0x1c5/0x3f0    vmbus_add_channel_work\u002B0x135/0x1a0  Fix this by letting pci core handle the free domain_nr and remove the explicit free called in pci-hyperv driver.",
  "published": "2026-05-06T10:16:23Z",
  "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": 0.0012,
  "epssPercentile": 0.01877,
  "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-2026-43097",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-43097",
      "released": "2026-05-15T16:01:09Z"
    }
  ],
  "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"
  }
}