Messages in this thread Patch in this message | | | From | Ben Hutchings <> | Date | Thu, 01 Jun 2017 16:40:55 +0100 | Subject | [PATCH 3.2 099/101] sctp: do not inherit ipv6_{mc|ac|fl}_list from parent |
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3.2.89-rc1 review patch. If anyone has any objections, please let me know.
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From: Eric Dumazet <edumazet@google.com>
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 <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: Ben Hutchings <ben@decadent.org.uk> --- net/sctp/ipv6.c | 3 +++ 1 file changed, 3 insertions(+)
--- a/net/sctp/ipv6.c +++ b/net/sctp/ipv6.c @@ -655,6 +655,9 @@ static struct sock *sctp_v6_create_accep 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);
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