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authorEric Dumazet <edumazet@google.com>2017-05-17 07:16:40 -0700
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-06-07 12:05:57 +0200
commitffa551def59c9b0e1747955af6a742443ae152fc (patch)
treea113e73405828e15027c7218e097955e62479675 /net
parent704e6c6b865113c859e5ce3e1f42cec7b1551b79 (diff)
sctp: do not inherit ipv6_{mc|ac|fl}_list from parent
[ Upstream commit fdcee2cbb8438702ea1b328fb6e0ac5e9a40c7f8 ] 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 <edumazet@google.com> Reported-by: Andrey Konovalov <andreyknvl@google.com> Tested-by: Andrey Konovalov <andreyknvl@google.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net')
-rw-r--r--net/sctp/ipv6.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/net/sctp/ipv6.c b/net/sctp/ipv6.c
index 079df5168fb1..7527c168e471 100644
--- a/net/sctp/ipv6.c
+++ b/net/sctp/ipv6.c
@@ -674,6 +674,9 @@ 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);