From: Kalle Valo <kvalo@codeaurora.org>
To: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Amitkumar Karwar <akarwar@marvell.com>,
Nishant Sarmukadam <nishants@marvell.com>,
linux-wireless@vger.kernel.org, kernel-janitors@vger.kernel.org
Subject: Re: [v2] mwifiex: fix mwifiex_rdeeprom_read()
Date: Tue, 29 Sep 2015 08:09:08 +0000 [thread overview]
Message-ID: <20150929080908.CC1F813F7C4@smtp.codeaurora.org> (raw)
In-Reply-To: <20150921161953.GQ5004@mwanda>
> There were several bugs here.
>
> 1) The done label was in the wrong place so we didn't copy any
> information out when there was no command given.
>
> 2) We were using PAGE_SIZE as the size of the buffer instead of
> "PAGE_SIZE - pos".
>
> 3) snprintf() returns the number of characters that would have been
> printed if there were enough space. If there was not enough space
> (and we had fixed the memory corruption bug #2) then it would result
> in an information leak when we do simple_read_from_buffer(). I've
> changed it to use scnprintf() instead.
>
> I also removed the initialization at the start of the function, because
> I thought it made the code a little more clear.
>
> Fixes: 5e6e3a92b9a4 ('wireless: mwifiex: initial commit for Marvell mwifiex driver')
> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
> Acked-by: Amitkumar Karwar <akarwar@marvell.com>
Thanks, applied to wireless-drivers-next.git.
Kalle Valo
WARNING: multiple messages have this Message-ID (diff)
From: Kalle Valo <kvalo@codeaurora.org>
To: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Amitkumar Karwar <akarwar@marvell.com>,
Nishant Sarmukadam <nishants@marvell.com>,
linux-wireless@vger.kernel.org, kernel-janitors@vger.kernel.org
Subject: Re: [v2] mwifiex: fix mwifiex_rdeeprom_read()
Date: Tue, 29 Sep 2015 08:09:08 +0000 (UTC) [thread overview]
Message-ID: <20150929080908.CC1F813F7C4@smtp.codeaurora.org> (raw)
In-Reply-To: <20150921161953.GQ5004@mwanda>
> There were several bugs here.
>
> 1) The done label was in the wrong place so we didn't copy any
> information out when there was no command given.
>
> 2) We were using PAGE_SIZE as the size of the buffer instead of
> "PAGE_SIZE - pos".
>
> 3) snprintf() returns the number of characters that would have been
> printed if there were enough space. If there was not enough space
> (and we had fixed the memory corruption bug #2) then it would result
> in an information leak when we do simple_read_from_buffer(). I've
> changed it to use scnprintf() instead.
>
> I also removed the initialization at the start of the function, because
> I thought it made the code a little more clear.
>
> Fixes: 5e6e3a92b9a4 ('wireless: mwifiex: initial commit for Marvell mwifiex driver')
> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
> Acked-by: Amitkumar Karwar <akarwar@marvell.com>
Thanks, applied to wireless-drivers-next.git.
Kalle Valo
next prev parent reply other threads:[~2015-09-29 8:09 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-08-20 10:30 [patch] mwifiex: fix mwifiex_rdeeprom_read() Dan Carpenter
2015-08-20 10:30 ` Dan Carpenter
2015-08-25 6:56 ` Amitkumar Karwar
2015-08-25 6:56 ` Amitkumar Karwar
2015-08-25 12:29 ` Kalle Valo
2015-08-25 12:29 ` Kalle Valo
2015-09-21 16:19 ` [patch v2] " Dan Carpenter
2015-09-21 16:19 ` Dan Carpenter
2015-09-22 10:58 ` Amitkumar Karwar
2015-09-22 10:58 ` Amitkumar Karwar
2015-09-29 8:09 ` Kalle Valo [this message]
2015-09-29 8:09 ` [v2] " Kalle Valo
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