lkml.org 
[lkml]   [2017]   [Jun]   [5]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 4.4 10/53] sctp: do not inherit ipv6_{mc|ac|fl}_list from parent
Date
4.4-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
@@ -674,6 +674,9 @@ 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);

\
 
 \ /
  Last update: 2017-06-12 00:30    [W:1.096 / U:0.528 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site