{
  "cveId": "CVE-2026-98709",
  "url": "https://patchblox.com/security/cve/CVE-2026-98709",
  "summary": "CVE-2026-98709 is fixed in 2 products on 1 platform, first by DEBIAN-CVE-2026-98709, released October 19, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "wifi: mac80211: count only matching reservations in reserved switch",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  wifi: mac80211: count only matching reservations in reserved switch  ieee80211_vif_use_reserved_switch() validates a replacement by counting assigned links on ctx-\u003Ereplace_ctx and treating reservations too broadly. A link can still be assigned to the old channel context while holding a reservation that belongs to a different replacement operation.  That can make the current replacement appear complete too early. If another link finalizes first, the function can free the WILL_BE_REPLACED chanctx while the unmatched link and driver still use it, leading to a use-after-free in later beacon generation.  Require an in-place reservation to point at the current replacement context, and require the reserved and assigned contexts to be the matching replacement pair, before counting or moving the link.",
  "published": "2026-10-18T16:17:24Z",
  "severity": "Important",
  "cvss": 7.1,
  "epss": 0.00176,
  "epssPercentile": 0.07199,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-98709",
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "6.12.113-1",
      "fix": "DEBIAN-CVE-2026-98709",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-98709",
      "released": "2026-10-19T16:27:52Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "7.2.10-1",
      "fix": "DEBIAN-CVE-2026-98709",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-98709",
      "released": "2026-10-19T16:27:52Z"
    },
    {
      "platform": "linux",
      "product": "linux-6.12",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "6.12.113-1~deb12u1",
      "fix": "DEBIAN-CVE-2026-98709",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-98709",
      "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"
  }
}