{
  "cveId": "CVE-2026-98650",
  "url": "https://patchblox.com/security/cve/CVE-2026-98650",
  "summary": "CVE-2026-98650 is fixed in linux on 1 platform by DEBIAN-CVE-2026-98650 (version 7.2.9-1), released October 19, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  KVM: s390: Fix potential races in dat skey funct...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  KVM: s390: Fix potential races in dat skey functions  When dat_cond_set_storage_key() finds a large page, it will conditionally set the storage key in absolute memory using large_crste_to_phys() to get the absolute address.  There is a race window between dat_entry_walk() and large_crste_to_phys(): the large page could have been split concurrently, and large_crste_to_phys() might be called with a crste that does not designate a large page, leading to crashes.  Similar issues were also present in dat_set_storage_key().  dat_get_storage_key() and dat_reset_reference_bit() did instead check for a potential concurrent splitting of the large page, but then handled it incorrectly.  Fix by performing a READ_ONCE on the crste pointer, checking and using the result, instead of dereferencing the pointer again. In case a race is detacted, try dat_entry_walk() again.",
  "published": "2026-10-18T16:17:18Z",
  "severity": "",
  "epss": 0.00155,
  "epssPercentile": 0.04713,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "7.2.9-1",
      "fix": "DEBIAN-CVE-2026-98650",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-98650",
      "released": "2026-10-19T16:27:52Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T06:59:42Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}