linux-kernel - [PATCH] drivers/net: ks8842 Fix crash on received packet when in PIO mode.

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Date:	Wed, 18 May 2011 14:51:14 -0700 (PDT)
From:	Dennis Aberilla <denzzzhome@...oo.com>
To:	info@...ean-labs.com
Cc:	davem@...emloft.net, linux-kernel@...r.kernel.org
Subject: [PATCH] drivers/net: ks8842 Fix crash on received packet when in PIO mode.

This patch fixes a kernel crash during packet reception due to not enough allocated bytes for the skb. This applies to the driver when running in PIO mode in an ISA bus setup.

Signed-off-by: Dennis Aberilla <denzzzhome@...oo.com>

---
diff --git a/drivers/net/ks8842.c b/drivers/net/ks8842.c
index f0d8346..9069aee 100644
--- a/drivers/net/ks8842.c
+++ b/drivers/net/ks8842.c
@@ -662,7 +662,7 @@ static void ks8842_rx_frame(struct net_device *netdev,

   /* check the status */
   if ((status & RXSR_VALID) && !(status & RXSR_ERROR)) {
-     struct sk_buff *skb = netdev_alloc_skb_ip_align(netdev, len);
+     struct sk_buff *skb = netdev_alloc_skb_ip_align(netdev, len + 2);

      if (skb) {

--

|Dennis
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