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net: route: Check that neighbor exists before deleting it

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If the neighbour does not exists, then the route to it cannot
be deleted so we can return error to caller in that case.

Coverity-CID: 188173
Fixes #10090

Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
This commit is contained in:
Jukka Rissanen 2018-09-21 14:43:12 +03:00
parent 3b8c37de45
commit 02e9f9c8e6
1 changed files with 3 additions and 0 deletions
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3
subsys/net/ip/route.c
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@ -531,6 +531,9 @@ int net_route_del_by_nexthop_data(struct net_if *iface,
NET_ASSERT(nexthop);
nbr_nexthop = net_ipv6_nbr_lookup(iface, nexthop);
if (!nbr_nexthop) {
return -EINVAL;
}
for (i = 0; i < CONFIG_NET_MAX_ROUTES; i++) {
struct net_nbr *nbr = get_nbr(i);