{"id":"CVE-2026-63969","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-63969","generatedAt":"2026-10-28T00:28:20.722Z","title":"In the Linux kernel, the following vulnerability has been resolved: ipv6: fix possible infinite loop in rt6_fill_node() Sashiko reported this issue [1].","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nipv6: fix possible infinite loop in rt6_fill_node()\n\nSashiko reported this issue [1]. Apply the same fix as\ncommit f8d8ce1b515a (\"ipv6: fix possible infinite loop in fib6_info_uses_dev()\").\n\nWriters holding tb6_lock can list_del_rcu(&rt->fib6_siblings)\nwithout waiting for RCU readers; rt->fib6_siblings.next then still\npoints into the old ring and this softirq-side walker never reaches\n&rt->fib6_siblings, causing a CPU stall. fib6_del_route() always\nWRITE_ONCE()s rt->fib6_nsiblings to 0 before list_del_rcu(), so an\ninside-loop check is a reliable detach signal.\n\n[1] https://sashiko.dev/#/patchset/20260526020227.4857-1-jiayuan.chen%40linux.dev","published":"2026-07-19T16:17:16.000Z","lastModified":"2026-07-30T14:51:11.000Z","status":"Awaiting Analysis","sourceIdentifier":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","cvss":null,"cwe":[],"affected":[],"epss":{"score":0.00211,"percentile":0.11308,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"unknown","text":"Not yet scored. NVD analysis is pending; check back once CVSS and EPSS values are published."},"changes":[],"references":[{"url":"https://git.kernel.org/stable/c/279853aec9f58d5cd723e6e5617c1c3337b30383","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/5e40de719ee76b8d96e2556ce36dbd3bd07bf37d","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/9f72412bcf60144f252b0d6205106abf14344abc","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/b014a63d2f2c2c767762b548381882dfb1655529","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/c65b1f60237daac7c56c2652e064cc566a45dc81","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/dc36a04621dcc2447dae428709207810b6c06e14","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-63969","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}