[PATCH 3.18 09/33] sctp: do not inherit ipv6_{mc|ac|fl}_list from parent

From	Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Newsgroups	linux.kernel
Subject	[PATCH 3.18 09/33] sctp: do not inherit ipv6_{mc\|ac\|fl}_list from parent
Date	2017-06-05 18:20 +0200
Message-ID	<tP2Ty-59z-61@gated-at.bofh.it> (permalink)
References	<tP2Tw-59z-15@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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3.18-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Eric Dumazet <edumazet@google.com>


[ 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>
---
 net/sctp/ipv6.c |    3 +++
 1 file changed, 3 insertions(+)

--- a/net/sctp/ipv6.c
+++ b/net/sctp/ipv6.c
@@ -673,6 +673,9 @@ 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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[PATCH 3.18 09/33] sctp: do not inherit ipv6_{mc|ac|fl}_list from parent Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2017-06-05 18:20 +0200

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