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netlink: fix NULL check in the default route snl(3) parser.
CID: 1506959 MFC after: 2 weeks
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@ -82,6 +82,8 @@ nlattr_get_multipath(struct snl_state *ss, struct nlattr *nla, const void *arg _
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size_t sz = (max_nhops + 2) * sizeof(struct rta_mpath_nh);
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struct rta_mpath *mp = snl_allocz(ss, sz);
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if (mp == NULL)
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return (false);
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mp->num_nhops = 0;
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for (rtnh = (struct rtnexthop *)(void *)(nla + 1); data_len > 0; ) {
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