{
  "cveId": "CVE-2026-89922",
  "url": "https://patchblox.com/security/cve/CVE-2026-89922",
  "summary": "CVE-2026-89922 is fixed in 2 products on 1 platform, first by DEBIAN-CVE-2026-89922, released September 23, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "KVM: s390: Take srcu when importing watchpoint data",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  KVM: s390: Take srcu when importing watchpoint data  __import_wp_info() backs up the original guest memory contents of a watchpoint with read_guest_abs(), which is kvm_read_guest() and therefore resolves the memslot via __kvm_memslots(). That requires kvm-\u003Esrcu (or kvm-\u003Eslots_lock) to be held, otherwise a concurrent memslot update can free the memslots array under us once its SRCU grace period has elapsed.  As this is not fast path, following lock ordering (mutex first, then srcu) take the big hammer and hold the srcu for the full import.",
  "published": "2026-09-16T11:17:01Z",
  "severity": "Important",
  "cvss": 7.8,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
  "epss": 0.00164,
  "epssPercentile": 0.0566,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-89922",
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "6.1.190-1",
      "fix": "DEBIAN-CVE-2026-89922",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-89922",
      "released": "2026-09-23T19:19:02Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "6.12.111-1",
      "fix": "DEBIAN-CVE-2026-89922",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-89922",
      "released": "2026-09-23T19:19:02Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "7.2.6-1",
      "fix": "DEBIAN-CVE-2026-89922",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-89922",
      "released": "2026-09-23T19:19:02Z"
    },
    {
      "platform": "linux",
      "product": "linux-6.12",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "6.12.111-1~deb12u1",
      "fix": "DEBIAN-CVE-2026-89922",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-89922",
      "released": "2026-09-23T19:19:02Z"
    }
  ],
  "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"
  }
}