[PATCH 1/9] netfilter: nf_tables: fix a missing check of nla_put_failure
From: Pablo Neira Ayuso <pablo@netfilter.org>
Date: 2018-12-29 12:58:13
Also in:
netfilter-devel
Subsystem:
netfilter, networking [general], the rest · Maintainers:
Pablo Neira Ayuso, Florian Westphal, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
From: Kangjie Lu <redacted> If nla_nest_start() may fail. The fix checks its return value and goes to nla_put_failure if it fails. Signed-off-by: Kangjie Lu <redacted> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> --- net/netfilter/nf_tables_api.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c
index fec814dace5a..2b0a93300dd7 100644
--- a/net/netfilter/nf_tables_api.c
+++ b/net/netfilter/nf_tables_api.c@@ -5727,6 +5727,8 @@ static int nf_tables_fill_flowtable_info(struct sk_buff *skb, struct net *net, goto nla_put_failure; nest = nla_nest_start(skb, NFTA_FLOWTABLE_HOOK); + if (!nest) + goto nla_put_failure; if (nla_put_be32(skb, NFTA_FLOWTABLE_HOOK_NUM, htonl(flowtable->hooknum)) || nla_put_be32(skb, NFTA_FLOWTABLE_HOOK_PRIORITY, htonl(flowtable->priority))) goto nla_put_failure;
--
2.11.0