From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: Antonio Quartulli Date: Wed, 11 May 2016 03:29:50 +0800 Message-Id: <1462908605-27412-3-git-send-email-a@unstable.cc> In-Reply-To: <1462908605-27412-1-git-send-email-a@unstable.cc> References: <1462908605-27412-1-git-send-email-a@unstable.cc> Subject: [B.A.T.M.A.N.] [PATCH 02/17] batman-adv: Remove hdr_size skb size check in batadv_interface_rx List-Id: The list for a Better Approach To Mobile Ad-hoc Networking List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: davem@davemloft.net Cc: netdev@vger.kernel.org, b.a.t.m.a.n@lists.open-mesh.org, Antonio Quartulli , Marek Lindner From: Sven Eckelmann The callers of batadv_interface_rx have to make sure that enough data can be pulled from the skb when they read the batman-adv header. The only two functions using it are either calling pskb_may_pull with hdr_size directly (batadv_recv_bcast_packet) or indirectly via batadv_check_unicast_packet (batadv_recv_unicast_packet). Reported-by: Marek Lindner Signed-off-by: Sven Eckelmann Signed-off-by: Marek Lindner Signed-off-by: Antonio Quartulli --- net/batman-adv/soft-interface.c | 4 ---- 1 file changed, 4 deletions(-) diff --git a/net/batman-adv/soft-interface.c b/net/batman-adv/soft-interface.c index dc9a61a5122d..d72f88707736 100644 --- a/net/batman-adv/soft-interface.c +++ b/net/batman-adv/soft-interface.c @@ -413,10 +413,6 @@ void batadv_interface_rx(struct net_device *soft_iface, batadv_bcast_packet = (struct batadv_bcast_packet *)skb->data; is_bcast = (batadv_bcast_packet->packet_type == BATADV_BCAST); - /* check if enough space is available for pulling, and pull */ - if (!pskb_may_pull(skb, hdr_size)) - goto dropped; - skb_pull_rcsum(skb, hdr_size); skb_reset_mac_header(skb); -- 2.8.2