From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Message-Id: <20120205220953.002657616@pcw.home.local> Date: Sun, 05 Feb 2012 23:11:12 +0100 From: Willy Tarreau To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Marcus Meissner , Reinhard Max , "David S. Miller" , Greg KH Subject: [PATCH 83/91] net/ipv4: Check for mistakenly passed in non-IPv4 address In-Reply-To: <0635750f5f06ed2ca212b91fcb5c4483@local> Sender: linux-kernel-owner@vger.kernel.org List-ID: 2.6.27-longterm review patch. If anyone has any objections, please let us know. ------------------ [ Upstream commit d0733d2e29b652b2e7b1438ececa732e4eed98eb ] Check against mistakenly passing in IPv6 addresses (which would result in an INADDR_ANY bind) or similar incompatible sockaddrs. Signed-off-by: Marcus Meissner Cc: Reinhard Max Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman --- net/ipv4/af_inet.c | 3 +++ 1 files changed, 3 insertions(+), 0 deletions(-) Index: longterm-2.6.27/net/ipv4/af_inet.c =================================================================== --- longterm-2.6.27.orig/net/ipv4/af_inet.c 2012-02-05 22:34:32.462915223 +0100 +++ longterm-2.6.27/net/ipv4/af_inet.c 2012-02-05 22:34:46.727915859 +0100 @@ -458,6 +458,9 @@ if (addr_len < sizeof(struct sockaddr_in)) goto out; + if (addr->sin_family != AF_INET) + goto out; + chk_addr_ret = inet_addr_type(sock_net(sk), addr->sin_addr.s_addr); /* Not specified by any standard per-se, however it breaks too