{
  "affected": [
    {
      "ecosystem_specific": {
        "urgency": "not yet assigned"
      },
      "package": {
        "ecosystem": "Debian:12",
        "name": "linux"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "6.1.176-1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "urgency": "not yet assigned"
      },
      "package": {
        "ecosystem": "Debian:13",
        "name": "linux"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "6.12.94-1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "urgency": "not yet assigned"
      },
      "package": {
        "ecosystem": "Debian:14",
        "name": "linux"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "7.0.12-1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "details": "In the Linux kernel, the following vulnerability has been resolved:  ipv6: fix possible infinite loop in rt6_fill_node()  Sashiko reported this issue [1]. Apply the same fix as commit f8d8ce1b515a (\"ipv6: fix possible infinite loop in fib6_info_uses_dev()\").  Writers holding tb6_lock can list_del_rcu(\u0026rt-\u003efib6_siblings) without waiting for RCU readers; rt-\u003efib6_siblings.next then still points into the old ring and this softirq-side walker never reaches \u0026rt-\u003efib6_siblings, causing a CPU stall. fib6_del_route() always WRITE_ONCE()s rt-\u003efib6_nsiblings to 0 before list_del_rcu(), so an inside-loop check is a reliable detach signal.  [1] https://sashiko.dev/#/patchset/20260526020227.4857-1-jiayuan.chen%40linux.dev",
  "id": "DEBIAN-CVE-2026-63969",
  "modified": "2026-09-14T16:47:37.901393630Z",
  "published": "2026-07-19T16:17:15.947Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://security-tracker.debian.org/tracker/CVE-2026-63969"
    }
  ],
  "upstream": [
    "CVE-2026-63969"
  ]
}