47 lines
1.5 KiB
Diff
47 lines
1.5 KiB
Diff
|
From eaa390df0e82e771601fa68482c4f022674e904f Mon Sep 17 00:00:00 2001
|
||
|
|
From: Eric Dumazet <edumazet@google.com>
|
||
|
|
Date: Wed, 17 May 2017 07:16:40 -0700
|
||
|
|
Subject: [PATCH] sctp: do not inherit ipv6_{mc|ac|fl}_list from parent
|
||
|
|
MIME-Version: 1.0
|
||
|
|
Content-Type: text/plain; charset=UTF-8
|
||
|
|
Content-Transfer-Encoding: 8bit
|
||
|
|
|
||
|
|
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>
|
||
|
|
|
||
|
|
CVE-2017-9075
|
||
|
|
|
||
|
|
(cherry-picked from fdcee2cbb8438702ea1b328fb6e0ac5e9a40c7f8)
|
||
|
|
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
|
||
|
|
Acked-by: Colin King <colin.king@canonical.com>
|
||
|
|
Acked-by: Andy Whitcroft <andy.whitcroft@canonical.com>
|
||
|
|
Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@canonical.com>
|
||
|
|
|
||
|
|
Signed-off-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>
|
||
|
|
---
|
||
|
|
net/sctp/ipv6.c | 3 +++
|
||
|
|
1 file changed, 3 insertions(+)
|
||
|
|
|
||
|
|
diff --git a/net/sctp/ipv6.c b/net/sctp/ipv6.c
|
||
|
|
index 64dfd35ccdcc..ef0ed6bb71e9 100644
|
||
|
|
--- a/net/sctp/ipv6.c
|
||
|
|
+++ b/net/sctp/ipv6.c
|
||
|
|
@@ -666,6 +666,9 @@ 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);
|
||
|
|
--
|
||
|
|
2.11.0
|
||
|
|
|