{
  "cveId": "CVE-2026-98831",
  "url": "https://patchblox.com/security/cve/CVE-2026-98831",
  "summary": "CVE-2026-98831 is fixed in 39 products on 1 platform, first by DEBIAN-CVE-2026-98831, released October 19, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "of/overlay: don\u0027t leak fragment references when changeset init fails",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  of/overlay: don\u0027t leak fragment references when changeset init fails  init_overlay_changeset() stores the number of initialized fragments in ovcs-\u003Ecount only on full success. When find_target() or the __symbols__ lookup fails partway through, the target and overlay references taken for the fragments initialized so far are never dropped: free_overlay_changeset() bounds its cleanup loop by ovcs-\u003Ecount, which is still 0.  Store the running count on the error path so free_overlay_changeset() puts whatever was set up. The store is guarded by ovcs-\u003Efragments because on the allocation-failure path cnt still holds the counting pass total while there is no fragments array; everywhere else cnt only counts fully-initialized fragments.",
  "published": "2026-10-18T16:17:37Z",
  "severity": "Low",
  "cvss": 2.3,
  "epss": 0.00177,
  "epssPercentile": 0.07302,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-98831",
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  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-09T13:31:49Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}