From 638be344593b66ccca6802c6076a5b3d9200829d Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?R=C3=A9mi=20Denis-Courmont?= Date: Tue, 15 Mar 2011 14:55:49 -0700 Subject: Phonet: fix aligned-mode pipe socket buffer header reserve MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit When the pipe uses aligned-mode data packets, we must reserve 4 bytes instead of 3 for the pipe protocol header. Otherwise the Phonet header would not be aligned, resulting in potentially corrupted headers with later unaligned memory writes. Signed-off-by: Rémi Denis-Courmont Signed-off-by: David S. Miller --- net/phonet/pep.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/phonet/pep.c b/net/phonet/pep.c index 68e635f11de8..f17fd841f948 100644 --- a/net/phonet/pep.c +++ b/net/phonet/pep.c @@ -1055,7 +1055,7 @@ static int pep_sendmsg(struct kiocb *iocb, struct sock *sk, if (!skb) return err; - skb_reserve(skb, MAX_PHONET_HEADER + 3); + skb_reserve(skb, MAX_PHONET_HEADER + 3 + pn->aligned); err = memcpy_fromiovec(skb_put(skb, len), msg->msg_iov, len); if (err < 0) goto outfree; -- cgit v1.2.3