{
  "cveId": "CVE-2026-98443",
  "url": "https://patchblox.com/security/cve/CVE-2026-98443",
  "summary": "CVE-2026-98443 is fixed in 39 products on 1 platform, first by DEBIAN-CVE-2026-98443, released October 19, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "xfs: fix cursor and pointer handling when recovering iunlink buckets",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  xfs: fix cursor and pointer handling when recovering iunlink buckets  LOLLM pointed out a bug in xlog_recover_iunlink_bucket:  1. We don\u0027t null out prev_ip after releasing it, which can lead to UAF    problems if the inodegc flush call in the loop fails.  at which point I noticed even more bugs:  2. If the inodegc flush inside the loop fails, we also leak @ip.  3. We set prev_agino to agino having already advanced agino, which    results in inodes with i_prev_unlinked set to itself.  4. If we exit the bottom of the loop with prev_ip set, then prev_ip    aliases ip and we also set its i_prev_unlinked to itself.  Bugs 3 and 4 introduce loops into the unlinked list, though these loops don\u0027t surface because we immediately flush each unlinked inode after loading it.  Fix all of these issues.",
  "published": "2026-10-18T16:16:54Z",
  "severity": "Moderate",
  "cvss": 7.8,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
  "epss": 0.00135,
  "epssPercentile": 0.03023,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-98443",
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  "noFixYet": [],
  "dataAsOf": "2026-11-08T13:06:02Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
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    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
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}