From: John W. Linville <linville@tuxdriver.com>
Date: Thu, 14 Jan 2010 22:00:54 +0000 (-0500)
Subject: Revert "iwmc3200wifi: fix array out-of-boundary access"
X-Git-Tag: v3.12-rc1~11246^2~49^2~290
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=79b6a5110abf6fd4454ba34e0960783a4a2c801a;p=kernel%2Fkernel-generic.git

Revert "iwmc3200wifi: fix array out-of-boundary access"

This reverts commit 6c853da3f30c93eae847ecbcd9fdf10ba0da04c2.

From Message-ID: <1262663293.551.117.camel@debian>
On Sat, 2010-01-02 at 22:09 +0800, Dan Carpenter wrote:
> It don't think 6c853da3f30c93 is right.  That's the patch
> titled "iwmc3200wifi: fix array out-of-boundary access"
>
>       Allocate priv->rx_packets[IWM_RX_ID_HASH + 1] because the max array
>       index is IWM_RX_ID_HASH according to IWM_RX_ID_GET_HASH().
>
> In 2.6.33-rc2 IWM_RX_ID_GET_HASH() doesn't go as high as IWM_RX_ID_HASH
> and I don't see any array out-of-bounds.
>
> #define IWM_RX_ID_GET_HASH(id) ((id) % IWM_RX_ID_HASH)

Ah, you are right. I took '%' for '&'. John, would you revert it? Sorry
for the false alarm.

Thanks,
-yi

Reported-by: Dan Carpenter <error27@gmail.com>
Reviewed-by: Zhu Yi <yi.zhu@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---

diff --git a/drivers/net/wireless/iwmc3200wifi/iwm.h b/drivers/net/wireless/iwmc3200wifi/iwm.h
index 8428111..79ffa3b 100644
--- a/drivers/net/wireless/iwmc3200wifi/iwm.h
+++ b/drivers/net/wireless/iwmc3200wifi/iwm.h
@@ -268,7 +268,7 @@ struct iwm_priv {
 
 	struct sk_buff_head rx_list;
 	struct list_head rx_tickets;
-	struct list_head rx_packets[IWM_RX_ID_HASH + 1];
+	struct list_head rx_packets[IWM_RX_ID_HASH];
 	struct workqueue_struct *rx_wq;
 	struct work_struct rx_worker;