From: David Ahern dsahern@gmail.com
[ Upstream commit 84be69b869a5a496a6cfde9b3c29509207a1f1fa ]
For nexthop groups, attributes after NHA_GROUP_TYPE are invalid, but nh_check_attr_group starts checking at NHA_GROUP. The group type defaults to multipath and the NHA_GROUP_TYPE is currently optional so this has slipped through so far. Fix the attribute checking to handle support of new group types.
Fixes: 430a049190de ("nexthop: Add support for nexthop groups") Signed-off-by: ASSOGBA Emery assogba.emery@gmail.com Signed-off-by: David Ahern dsahern@gmail.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- net/ipv4/nexthop.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/net/ipv4/nexthop.c +++ b/net/ipv4/nexthop.c @@ -434,7 +434,7 @@ static int nh_check_attr_group(struct ne if (!valid_group_nh(nh, len, extack)) return -EINVAL; } - for (i = NHA_GROUP + 1; i < __NHA_MAX; ++i) { + for (i = NHA_GROUP_TYPE + 1; i < __NHA_MAX; ++i) { if (!tb[i]) continue;