linux-kernel - Re: [PATCH] staging: rtl8192e: Fix possible buffer overflow in _rtl92e_wx_set

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Message-ID: <20210305150014.GA627584@ubuntudesktop>
Date:   Fri, 5 Mar 2021 15:00:14 +0000
From:   Lee <leegib@...il.com>
To:     Dan Carpenter <dan.carpenter@...cle.com>
Cc:     devel@...verdev.osuosl.org, gregkh@...uxfoundation.org,
        linux-kernel@...r.kernel.org, linux-wireless@...r.kernel.org
Subject: Re: [PATCH] staging: rtl8192e: Fix possible buffer overflow in
 _rtl92e_wx_set_scan


Hi Dan,

Do you think any of these could be potential issues:

driver/staging/

rtl8192e/rtllib_rx.c:2442
wlan-ng/cfg80211.c:316
rtl8723bs/os_dep/ioctl_cfg80211.c:1591
rtl8723bs/os_dep/ioctl_cfg80211.c:2738

and if so, findable via Smatch?

Regards,
Lee


On Fri, Mar 05, 2021 at 11:22:28AM +0300, Dan Carpenter wrote:
> Actually, I looked through a bunch of these and they're mostly false
> positives outside of staging.  I guess there are a few ways the ->ssid
> can be changed.  Via netlink, from the network or from the an ioctl.
> 
> I still have a couple questions, but so far as I can see it's mostly the
> ioctl which has problems.
> 
> I really want Smatch to be able to figure the netlink stuff...  That
> should be doable.
> 
> regards,
> dan carpenter
>