if (req.r.rtm_family == AF_UNSPEC)
req.r.rtm_family = AF_INET;
- req.r.rtm_flags |= RTM_F_LOOKUP_TABLE;
+ /* Only IPv4 supports the RTM_F_LOOKUP_TABLE flag */
+ if (req.r.rtm_family == AF_INET)
+ req.r.rtm_flags |= RTM_F_LOOKUP_TABLE;
if (fib_match)
req.r.rtm_flags |= RTM_F_FIB_MATCH;