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ipv6: Continue processing multipath route even if gateway attribute is invalid

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[ Upstream commit e30a845b0376eb51c9c94f56bbd53b2e08ba822f ]

ip6_route_multipath_del loop continues processing the multipath
attribute even if delete of a nexthop path fails. For consistency,
do the same if the gateway attribute is invalid.

Fixes: 1ff15a710a86 ("ipv6: Check attribute length for RTA_GATEWAY when deleting multipath route")
Signed-off-by: David Ahern <dsahern@kernel.org>
Acked-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Link: https://lore.kernel.org/r/20220103171911.94739-1-dsahern@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
David Ahern 2022-01-03 10:19:11 -07:00 committed by Greg Kroah-Hartman
parent 2a6a811a45
commit c94999cfbb
1 changed files with 5 additions and 2 deletions
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7
net/ipv6/route.c
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@ -5313,8 +5313,10 @@ static int ip6_route_multipath_del(struct fib6_config *cfg,
if (nla) {
err = fib6_gw_from_attr(&r_cfg.fc_gateway, nla,
extack);
if (err)
return err;
if (err) {
last_err = err;
goto next_rtnh;
}
r_cfg.fc_flags |= RTF_GATEWAY;
}
@ -5323,6 +5325,7 @@ static int ip6_route_multipath_del(struct fib6_config *cfg,
if (err)
last_err = err;
next_rtnh:
rtnh = rtnh_next(rtnh, &remaining);
}