| From: Eric Dumazet <edumazet@google.com> |
| Date: Wed, 17 May 2017 07:16:40 -0700 |
| Subject: sctp: do not inherit ipv6_{mc|ac|fl}_list from parent |
| |
| 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); |
