From 5ffedc6ed3d066f5c0d2c2106f9081170b3d24fa Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Mon, 22 Apr 2013 20:24:52 +0000 Subject: [PATCH] NFC: llcp: two bugs in ->getname() The sockaddr_nfc_llcp struct has as hole between ->sa_family and ->dev_idx so I've added a memset() to clear it and prevent an information leak. Also the ->nfc_protocol element wasn't set so I've added that. "uaddr->sa_family" and "llcp_addr->sa_family" are the same thing but it's less confusing to use llcp_addr consistently throughout. Signed-off-by: Dan Carpenter Signed-off-by: David S. Miller --- net/nfc/llcp/sock.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/net/nfc/llcp/sock.c b/net/nfc/llcp/sock.c index 6c94447ec414..e16315719eaf 100644 --- a/net/nfc/llcp/sock.c +++ b/net/nfc/llcp/sock.c @@ -358,12 +358,13 @@ static int llcp_sock_getname(struct socket *sock, struct sockaddr *uaddr, pr_debug("%p %d %d %d\n", sk, llcp_sock->target_idx, llcp_sock->dsap, llcp_sock->ssap); - uaddr->sa_family = AF_NFC; - + memset(llcp_addr, 0, sizeof(*llcp_addr)); *len = sizeof(struct sockaddr_nfc_llcp); + llcp_addr->sa_family = AF_NFC; llcp_addr->dev_idx = llcp_sock->dev->idx; llcp_addr->target_idx = llcp_sock->target_idx; + llcp_addr->nfc_protocol = llcp_sock->nfc_protocol; llcp_addr->dsap = llcp_sock->dsap; llcp_addr->ssap = llcp_sock->ssap; llcp_addr->service_name_len = llcp_sock->service_name_len; -- 2.20.1