In the Linux kernel, the following vulnerability has been resolved: ipv6: do not warn on route notification size race fib6_info_hw_flags_set() sizes the skb with rt6_nlmsg_size() and later fills it with rt6_fill_node(). With nexthop compatibility mode enabled, a concurrent replacement can grow the group between these independent snapshots. rt6_fill_node() can then legitimately return -EMSGSIZE, so the warning does not prove a sizing bug. Remove the warning. The existing error path still frees the skb and reports the error to listeners.
Fix
Nothing published yet: no patch, vendor advisory or mitigation reference on NVD, no vendor advisory in the News for this CVE, not in CISA's KEV, no fixed package version. BaselineWatch does not guess at one.
Change history 3
- StatusReceived → PublishedNVD modified 2026-10-23 12:23
- StatusPublished → ReceivedNVD modified 2026-10-23 13:17
- First seenunscored · linuxNVD modified 2026-10-23 12:23
Affected (CPE criteria) 0
NVD has not attached CPE configurations yet.
References 5
- 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