{
  "cveId": "CVE-2026-89924",
  "url": "https://patchblox.com/security/cve/CVE-2026-89924",
  "summary": "CVE-2026-89924 is fixed in 2 products on 1 platform, first by DEBIAN-CVE-2026-89924, released September 23, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "KVM: s390: Fix old_data leak in guest debug error path",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  KVM: s390: Fix old_data leak in guest debug error path  __import_wp_info() allocates a per-watchpoint old_data buffer to back up the original guest memory contents. If a later watchpoint of the same KVM_SET_GUEST_DEBUG request fails to import, kvm_s390_import_bp_data() jumps to the error label, which frees the wp_info array but not the old_data buffers of the entries that were imported successfully. Up to MAX_BP_COUNT - 1 buffers of up to MAX_WP_SIZE bytes are leaked per failed request, and the request can be repeated.  Create error handling for cleaning up all created old_data memory areas.",
  "published": "2026-09-16T11:17:01Z",
  "severity": "Moderate",
  "cvss": 5.5,
  "epss": 0.00216,
  "epssPercentile": 0.1214,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-89924",
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "6.1.190-1",
      "fix": "DEBIAN-CVE-2026-89924",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-89924",
      "released": "2026-09-23T19:19:02Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "6.12.111-1",
      "fix": "DEBIAN-CVE-2026-89924",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-89924",
      "released": "2026-09-23T19:19:02Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "7.2.6-1",
      "fix": "DEBIAN-CVE-2026-89924",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-89924",
      "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-2026-89924",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-89924",
      "released": "2026-09-23T19:19:02Z"
    }
  ],
  "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"
  }
}