{"cve":"CVE-2026-99070","nvd":{"published":"2026-10-23T13:17:30.907","modified":"2026-10-23T13:17:30.907","status":"Received","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nipv6: do not warn on route notification size race\n\nfib6_info_hw_flags_set() sizes the skb with rt6_nlmsg_size() and later\nfills it with rt6_fill_node().  With nexthop compatibility mode enabled,\na concurrent replacement can grow the group between these independent\nsnapshots.  rt6_fill_node() can then legitimately return -EMSGSIZE, so\nthe warning does not prove a sizing bug.\n\nRemove the warning.  The existing error path still frees the skb and\nreports the error to listeners.","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["https://git.kernel.org/stable/c/291fe0bafee78c95f9f2e7f579f17793fd5a1e5a","https://git.kernel.org/stable/c/4ac7d92a4698e34e614c254359665b9de1f65283","https://git.kernel.org/stable/c/7b112bd43f1172fb152e848570a957467008a5ae","https://git.kernel.org/stable/c/8a3b935b6b6037eefb36bd27a60793a008358e8d","https://git.kernel.org/stable/c/c97426ec649d99596d8969e1a052c16b14b7b485"],"products":[],"source":"nvd","synced_at":"2026-10-23T16:39:28.036610720+00:00"},"epss":{"cve":"CVE-2026-99070","score":0.00168,"percentile":0.06111,"date":"2026-10-25"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}