netdev - Re: [PATCH net] net: wangxun: fix kernel panic due to null pointer

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Message-ID: <20231119192702.GF186930@vergenet.net>
Date: Sun, 19 Nov 2023 19:27:02 +0000
From: Simon Horman <horms@...nel.org>
To: Jiawen Wu <jiawenwu@...stnetic.com>
Cc: davem@...emloft.net, edumazet@...gle.com, kuba@...nel.org,
	pabeni@...hat.com, netdev@...r.kernel.org,
	mengyuanlou@...-swift.com, stable@...r.kernel.org
Subject: Re: [PATCH net] net: wangxun: fix kernel panic due to null pointer

On Fri, Nov 17, 2023 at 06:11:08PM +0800, Jiawen Wu wrote:
> When the device uses a custom subsystem vendor ID, the function
> wx_sw_init() returns before the memory of 'wx->mac_table' is allocated.
> The null pointer will causes the kernel panic.
> 
> Fixes: 79625f45ca73 ("net: wangxun: Move MAC address handling to libwx")
> Signed-off-by: Jiawen Wu <jiawenwu@...stnetic.com>

Thanks Jiawen Wu,

I agree with your analysis and that the problem was introduced by the cited
commit. The fix also looks good to me.

Reviewed-by: Simon Horman <horms@...nel.org>