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 <kjlu@xxxxxxx> --- 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 2e61aab6ed73..bc1b9814f2ee 100644 --- a/net/netfilter/nf_tables_api.c +++ b/net/netfilter/nf_tables_api.c @@ -5689,6 +5689,8 @@ 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; -- 2.17.2 (Apple Git-113)
