linux-kernel - Re: [v3] ssb: Fix potential NULL pointer dereference in ssb_device

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Date: Tue, 12 Mar 2024 15:31:29 +0000 (UTC)
From: Kalle Valo <kvalo@...nel.org>
To: Rand Deeb <rand.sec96@...il.com>
Cc: Michael Buesch <m@...s.ch>, linux-wireless@...r.kernel.org,
 linux-kernel@...r.kernel.org, deeb.rand@...fident.ru,
 lvc-project@...uxtesting.org, voskresenski.stanislav@...fident.ru,
 khoroshilov@...ras.ru, Rand Deeb <rand.sec96@...il.com>
Subject: Re: [v3] ssb: Fix potential NULL pointer dereference in
 ssb_device_uevent()

Rand Deeb <rand.sec96@...il.com> wrote:

> The ssb_device_uevent() function first attempts to convert the 'dev' pointer
> to 'struct ssb_device *'. However, it mistakenly dereferences 'dev' before
> performing the NULL check, potentially leading to a NULL pointer
> dereference if 'dev' is NULL.
> 
> To fix this issue, move the NULL check before dereferencing the 'dev' pointer,
> ensuring that the pointer is valid before attempting to use it.
> 
> Found by Linux Verification Center (linuxtesting.org) with SVACE.
> 
> Signed-off-by: Rand Deeb <rand.sec96@...il.com>

Patch applied to wireless-next.git, thanks.

789c17185fb0 ssb: Fix potential NULL pointer dereference in ssb_device_uevent()

-- 
https://patchwork.kernel.org/project/linux-wireless/patch/20240306123028.164155-1-rand.sec96@gmail.com/

https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches