From cc1fa7814bdb7ebee2ee79bbce181c0783de9ad5 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Wed, 17 May 2017 07:16:40 -0700 Subject: [PATCH 1/1] sctp: do not inherit ipv6_{mc|ac|fl}_list from parent commit fdcee2cbb8438702ea1b328fb6e0ac5e9a40c7f8 upstream. SCTP needs fixes similar to 83eaddab4378 ("ipv6/dccp: do not inherit ipv6_mc_list from parent"), otherwise bad things can happen. Signed-off-by: Eric Dumazet Reported-by: Andrey Konovalov Tested-by: Andrey Konovalov Signed-off-by: David S. Miller Signed-off-by: Ben Hutchings --- net/sctp/ipv6.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/net/sctp/ipv6.c b/net/sctp/ipv6.c index 428fa6f69bd8..762b61d84ac1 100644 --- a/net/sctp/ipv6.c +++ b/net/sctp/ipv6.c @@ -655,6 +655,9 @@ static struct sock *sctp_v6_create_accept_sk(struct sock *sk, newnp = inet6_sk(newsk); memcpy(newnp, np, sizeof(struct ipv6_pinfo)); + newnp->ipv6_mc_list = NULL; + newnp->ipv6_ac_list = NULL; + newnp->ipv6_fl_list = NULL; rcu_read_lock(); opt = rcu_dereference(np->opt); -- 2.39.2