{
  "cveId": "CVE-2026-72429",
  "url": "https://patchblox.com/security/cve/CVE-2026-72429",
  "summary": "CVE-2026-72429 is fixed in linux on 1 platform by DEBIAN-CVE-2026-72429 (version 7.1.5-1), released August 15, 2026. It is not reported as exploited. Patch Radar priority: Urgent.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  ipv6: ioam: fix type confusion of dst_entry  IOA...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  ipv6: ioam: fix type confusion of dst_entry  IOAM uses a dummy dst_entry(null_dst) to mark that the destination should not be changed after the transformation. This dst is stored in the IOAM lwt state and may be passed to dst_cache_set_ip6().  However, the IPv6 dst cache path eventually calls rt6_get_cookie(), which treats the dst_entry as part of a struct rt6_info. Since the null_dst was embedded directly as a struct dst_entry in struct ioam6_lwt, this resulted in an invalid cast and rt6_get_cookie() reading fields from the wrong object.  In practice, the wrong cookie is not used while dst-\u003Eobsolete is zero, but rt6_get_cookie() may also access per-cpu value when rt-\u003Esernum is zero. In this case, rt-\u003Esernum aliases ioam6_lwt::cache::reset_ts, which can become zero, making this a potential invalid pointer access.  Fix this by embedding a full struct rt6_info for the dummy IPv6 route and passing its dst member to the dst APIs.",
  "published": "2026-08-15T06:22:16Z",
  "severity": "critical",
  "cvss": 9.8,
  "cvssVector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
  "epss": 0.00649,
  "epssPercentile": 0.51404,
  "priority": "Urgent",
  "priorityTier": 2,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "7.1.5-1",
      "fix": "DEBIAN-CVE-2026-72429",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-72429",
      "released": "2026-08-15T22:38:55Z"
    }
  ],
  "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"
  }
}