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inet{6}_request_sock: Init ->opt and ->pktopts in the constructor

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Wei Yongjun noticed that we may call reqsk_free on request sock objects where
the opt fields may not be initialized, fix it by introducing inet_reqsk_alloc
where we initialize ->opt to NULL and set ->pktopts to NULL in
inet6_reqsk_alloc.

Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
This commit is contained in:
Arnaldo Carvalho de Melo 2008-06-10 12:39:35 -07:00 • committed by David S. Miller
commit ce4a7d0d48
8 changed files with 16 additions and 9 deletions
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3
net/ipv4/syncookies.c
View file

@ -285,7 +285,7 @@ struct sock *cookie_v4_check(struct sock *sk, struct sk_buff *skb,
cookie_check_timestamp(&tcp_opt);
ret = NULL;
req = reqsk_alloc(&tcp_request_sock_ops); /* for safety */
req = inet_reqsk_alloc(&tcp_request_sock_ops); /* for safety */
if (!req)
goto out;
@ -301,7 +301,6 @@ struct sock *cookie_v4_check(struct sock *sk, struct sk_buff *skb,
ireq->rmt_port = th->source;
ireq->loc_addr = ip_hdr(skb)->daddr;
ireq->rmt_addr = ip_hdr(skb)->saddr;
ireq->opt = NULL;
ireq->snd_wscale = tcp_opt.snd_wscale;
ireq->rcv_wscale = tcp_opt.rcv_wscale;
ireq->sack_ok = tcp_opt.sack_ok;

2
net/ipv4/tcp_ipv4.c
View file

@ -1285,7 +1285,7 @@ int tcp_v4_conn_request(struct sock *sk, struct sk_buff *skb)
if (sk_acceptq_is_full(sk) && inet_csk_reqsk_queue_young(sk) > 1)
goto drop;
req = reqsk_alloc(&tcp_request_sock_ops);
req = inet_reqsk_alloc(&tcp_request_sock_ops);
if (!req)
goto drop;