{
  "cveId": "CVE-2026-90259",
  "url": "https://patchblox.com/security/cve/CVE-2026-90259",
  "summary": "CVE-2026-90259 is fixed in 36 products on 1 platform, first by DEBIAN-CVE-2026-90259, released September 23, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  btrfs: qgroup: fix a wrong length calculation in...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  btrfs: qgroup: fix a wrong length calculation in qgroup_free_reserved_data()  In that function, we round down the start position and round up the ending position.  But during the calculation of @len, we use \u0022round_up(start \u002B len, sectorsize)\u0022, which is the rounded up end position, not the rounded up length.  Which results a much larger length, and later we are still using \u0022start \u002B len\u0022, which is completely incorrect.  Fix it by declaring a local @aligned_start and @aligned_len and use them instead.",
  "published": "2026-09-17T17:17:22Z",
  "severity": "important",
  "epss": 0.00212,
  "epssPercentile": 0.11548,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
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