Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 907eea486888cfe118c19759bbc4b8fca2e004df before 8a3b935b6b6037eefb36bd27a60793a008358e8d; affected 907eea486888cfe118c19759bbc4b8fca2e004df before 7b112bd43f1172fb152e848570a957467008a5ae; affected 907eea486888cfe118c19759bbc4b8fca2e004df before 4ac7d92a4698e34e614c254359665b9de1f65283; affected 907eea486888cfe118c19759bbc4b8fca2e004df before 291fe0bafee78c95f9f2e7f579f17793fd5a1e5a; affected 907eea486888cfe118c19759bbc4b8fca2e004df before c97426ec649d99596d8969e1a052c16b14b7b485 |
| Linux / Linux | affected 5.12; unaffected 0 before 5.12; unaffected 6.6.160 through 6.6.*; unaffected 6.12.113 through 6.12.*; unaffected 6.18.57 through 6.18.*; unaffected 7.2.11 through 7.2.*; unaffected 7.3 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/8a3b935b6b6037eefb36bd27a60793a008358e8d
- https://git.kernel.org/stable/c/7b112bd43f1172fb152e848570a957467008a5ae
- https://git.kernel.org/stable/c/4ac7d92a4698e34e614c254359665b9de1f65283
- https://git.kernel.org/stable/c/291fe0bafee78c95f9f2e7f579f17793fd5a1e5a
- https://git.kernel.org/stable/c/c97426ec649d99596d8969e1a052c16b14b7b485