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| author | Al Viro <viro@zeniv.linux.org.uk> | 2016-01-04 15:25:34 (GMT) |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2016-01-04 15:25:34 (GMT) |
| commit | 7e935c7ca1e6c398f11edac5beabfc4348e3b3a4 (patch) | |
| tree | 86da864ba6341bd86b5f5450c611f918722237b2 /net/sctp/ipv6.c | |
| parent | c62432b40b5e03c25faf2c8f8547bba4908b8945 (diff) | |
| parent | e9d408e107db9a554b36c3a79f67b37dd3e16da0 (diff) | |
| download | linux-7e935c7ca1e6c398f11edac5beabfc4348e3b3a4.tar.xz | |
Merge branch 'memdup_user_nul' into work.misc
Diffstat (limited to 'net/sctp/ipv6.c')
| -rw-r--r-- | net/sctp/ipv6.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/net/sctp/ipv6.c b/net/sctp/ipv6.c index acb45b8..ec52912 100644 --- a/net/sctp/ipv6.c +++ b/net/sctp/ipv6.c @@ -323,14 +323,13 @@ static void sctp_v6_get_dst(struct sctp_transport *t, union sctp_addr *saddr, } } } - rcu_read_unlock(); - if (baddr) { fl6->saddr = baddr->v6.sin6_addr; fl6->fl6_sport = baddr->v6.sin6_port; final_p = fl6_update_dst(fl6, rcu_dereference(np->opt), &final); dst = ip6_dst_lookup_flow(sk, fl6, final_p); } + rcu_read_unlock(); out: if (!IS_ERR_OR_NULL(dst)) { @@ -642,6 +641,7 @@ static struct sock *sctp_v6_create_accept_sk(struct sock *sk, struct sock *newsk; struct ipv6_pinfo *newnp, *np = inet6_sk(sk); struct sctp6_sock *newsctp6sk; + struct ipv6_txoptions *opt; newsk = sk_alloc(sock_net(sk), PF_INET6, GFP_KERNEL, sk->sk_prot, 0); if (!newsk) @@ -661,6 +661,13 @@ static struct sock *sctp_v6_create_accept_sk(struct sock *sk, memcpy(newnp, np, sizeof(struct ipv6_pinfo)); + rcu_read_lock(); + opt = rcu_dereference(np->opt); + if (opt) + opt = ipv6_dup_options(newsk, opt); + RCU_INIT_POINTER(newnp->opt, opt); + rcu_read_unlock(); + /* Initialize sk's sport, dport, rcv_saddr and daddr for getsockname() * and getpeername(). */ |