Commit 632da4d6 authored by Eilon Greenstein's avatar Eilon Greenstein Committed by David S. Miller
Browse files

bnx2x: Overstepping array bounds 



If the page size is > 8KB this violation happens

Signed-off-by: default avatarEilon Greenstein <eilong@broadcom.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 2add3acb

drivers/net/bnx2x_main.c

+4 −0
Original line number Diff line number Diff line
@@ -9427,6 +9427,7 @@ static inline u32 bnx2x_xmit_type(struct bnx2x *bp, struct sk_buff *skb) 
	return rc;

}



#if (MAX_SKB_FRAGS >= MAX_FETCH_BD - 3)

/* check if packet requires linearization (packet is too fragmented) */

static int bnx2x_pkt_req_lin(struct bnx2x *bp, struct sk_buff *skb,

			     u32 xmit_type)
@@ -9504,6 +9505,7 @@ static int bnx2x_pkt_req_lin(struct bnx2x *bp, struct sk_buff *skb, 


	return to_copy;

}

#endif



/* called with netif_tx_lock

 * bnx2x_tx_int() runs without netif_tx_lock unless it needs to call
@@ -9544,6 +9546,7 @@ static int bnx2x_start_xmit(struct sk_buff *skb, struct net_device *dev) 
	   skb->ip_summed, skb->protocol, ipv6_hdr(skb)->nexthdr,

	   ip_hdr(skb)->protocol, skb_shinfo(skb)->gso_type, xmit_type);



#if (MAX_SKB_FRAGS >= MAX_FETCH_BD - 3)

	/* First, check if we need to linearize the skb

	   (due to FW restrictions) */

	if (bnx2x_pkt_req_lin(bp, skb, xmit_type)) {
@@ -9556,6 +9559,7 @@ static int bnx2x_start_xmit(struct sk_buff *skb, struct net_device *dev) 
			return NETDEV_TX_OK;

		}

	}

#endif



	/*

	Please read carefully. First we use one BD which we mark as start,