From edc9e81917157d1e73bf081d4fbcad7c34d32783 Mon Sep 17 00:00:00 2001 From: Herbert Xu Date: Sun, 30 Oct 2005 11:20:59 +1100 Subject: [PATCH] [DCCP]: Set socket owner iff packet is not data Here is a complimentary insurance policy for those feeling a bit insecure. You don't have to accept this. However, if you do, you can't blame me for it :) > 1) dccp_transmit_skb sets the owner for all packets except data packets. We can actually verify this by looking at pkt_type. Signed-off-by: Herbert Xu Signed-off-by: Arnaldo Carvalho de Melo --- net/dccp/output.c | 17 +++++++++++------ 1 file changed, 11 insertions(+), 6 deletions(-) diff --git a/net/dccp/output.c b/net/dccp/output.c index c25b042388..74ff870258 100644 --- a/net/dccp/output.c +++ b/net/dccp/output.c @@ -58,10 +58,21 @@ static int dccp_transmit_skb(struct sock *sk, struct sk_buff *skb) switch (dcb->dccpd_type) { case DCCP_PKT_DATA: set_ack = 0; + /* fall through */ + case DCCP_PKT_DATAACK: break; + case DCCP_PKT_SYNC: case DCCP_PKT_SYNCACK: ackno = dcb->dccpd_seq; + /* fall through */ + default: + /* + * Only data packets should come through with skb->sk + * set. + */ + WARN_ON(skb->sk); + skb_set_owner_w(skb, sk); break; } @@ -71,12 +82,6 @@ static int dccp_transmit_skb(struct sock *sk, struct sk_buff *skb) skb->h.raw = skb_push(skb, dccp_header_size); dh = dccp_hdr(skb); - /* - * Only data packets should come through with skb->sk set. - */ - if (!skb->sk) - skb_set_owner_w(skb, sk); - /* Build DCCP header and checksum it. */ memset(dh, 0, dccp_header_size); dh->dccph_type = dcb->dccpd_type; -- 2.39.5