linux-kernel - Re: [PATCH] staging: ks7010: potential buffer overflow in ks_wlan_set_encode

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Message-ID: <fb7fac70-1d81-4dee-97ed-66c6a58720ca@kadam.mountain>
Date:   Mon, 10 Jul 2023 09:08:27 +0300
From:   Dan Carpenter <dan.carpenter@...aro.org>
To:     Zhang Shurong <zhang_shurong@...mail.com>
Cc:     gregkh@...uxfoundation.org, error27@...il.com, xu.panda@....com.cn,
        linux-staging@...ts.linux.dev, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] staging: ks7010: potential buffer overflow in
 ks_wlan_set_encode_ext()

On Sun, Jul 09, 2023 at 01:50:07PM +0800, Zhang Shurong wrote:
> The "exc->key_len" is a u16 that comes from the user.  If it's over
> IW_ENCODING_TOKEN_MAX (64) that could lead to memory corruption.
> 
> Fixes: b121d84882b9 ("staging: ks7010: simplify calls to memcpy()")
> 
> Signed-off-by: Zhang Shurong <zhang_shurong@...mail.com>

Reviewed-by: Dan Carpenter <dan.carpenter@...aro.org>

regards,
dan carpenter