linux-kernel - Re: [PATCH] wireless: iwlwifi3945/4965

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Date:	Sat, 26 Jan 2008 22:14:29 +0200
From:	"Tomas Winkler" <tomasw@...il.com>
To:	"Cyrill Gorcunov" <gorcunov@...il.com>
Cc:	"Thomas Tuttle" <linux-kernel@...ttle.net>,
	LKML <linux-kernel@...r.kernel.org>,
	"Andrew Morton" <akpm@...ux-foundation.org>,
	"Michael Wu" <flamingice@...rmilk.net>,
	LWML <linux-wireless@...r.kernel.org>
Subject: Re: [PATCH] wireless: iwlwifi3945/4965 - fix incorrect counting of memory

On Jan 26, 2008 6:09 PM, Cyrill Gorcunov <gorcunov@...il.com> wrote:
> This patch does fix incorrect counting of memory allocated by kmalloc.
> It seems that could lead to allocated memory overrun and corrupt
> nearlaid memory area.
>
> Signed-off-by: Cyrill Gorcunov <gorcunov@...il.com>
>
> ---
>
>  iwl3945-base.c |    2 +-
>  iwl4965-base.c |    2 +-
>  2 files changed, 2 insertions(+), 2 deletions(-)
>
> Index: linux-2.6.git/drivers/net/wireless/iwlwifi/iwl3945-base.c
> ===================================================================
> --- linux-2.6.git.orig/drivers/net/wireless/iwlwifi/iwl3945-base.c      2008-01-24 18:26:11.000000000 +0300
> +++ linux-2.6.git/drivers/net/wireless/iwlwifi/iwl3945-base.c   2008-01-26 18:45:03.000000000 +0300
> @@ -6631,7 +6631,7 @@ static void iwl_bg_request_scan(struct w
>          * that based on the direct_mask added to each channel entry */
>         scan->tx_cmd.len = cpu_to_le16(
>                 iwl_fill_probe_req(priv, (struct ieee80211_mgmt *)scan->data,
> -                       IWL_MAX_SCAN_SIZE - sizeof(scan), 0));
> +                       IWL_MAX_SCAN_SIZE - sizeof(*scan), 0));
>         scan->tx_cmd.tx_flags = TX_CMD_FLG_SEQ_CTL_MSK;
>         scan->tx_cmd.sta_id = priv->hw_setting.bcast_sta_id;
>         scan->tx_cmd.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE;
>
> Index: linux-2.6.git/drivers/net/wireless/iwlwifi/iwl4965-base.c
> ===================================================================
> --- linux-2.6.git.orig/drivers/net/wireless/iwlwifi/iwl4965-base.c      2008-01-26 18:45:38.000000000 +0300
> +++ linux-2.6.git/drivers/net/wireless/iwlwifi/iwl4965-base.c   2008-01-26 18:46:06.000000000 +0300
> @@ -6992,7 +6992,7 @@ static void iwl_bg_request_scan(struct w
>          * that based on the direct_mask added to each channel entry */
>         scan->tx_cmd.len = cpu_to_le16(
>                 iwl_fill_probe_req(priv, (struct ieee80211_mgmt *)scan->data,
> -                       IWL_MAX_SCAN_SIZE - sizeof(scan), 0));
> +                       IWL_MAX_SCAN_SIZE - sizeof(*scan), 0));
>         scan->tx_cmd.tx_flags = TX_CMD_FLG_SEQ_CTL_MSK;
>         scan->tx_cmd.sta_id = priv->hw_setting.bcast_sta_id;
>         scan->tx_cmd.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE;
> -
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>

Thanks.

ACK
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