linux-kernel - Re: [PATCH v4 net 0/2] net: sched: initialize struct tc

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Message-ID: <aRJExzyyqdt1V6cP@pop-os.localdomain>
Date: Mon, 10 Nov 2025 12:02:15 -0800
From: Cong Wang <xiyou.wangcong@...il.com>
To: Ranganath V N <vnranganath.20@...il.com>
Cc: edumazet@...gle.com, davem@...emloft.net, david.hunter.linux@...il.com,
	horms@...nel.org, jhs@...atatu.com, jiri@...nulli.us,
	khalid@...nel.org, kuba@...nel.org, pabeni@...hat.com,
	linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
	skhan@...uxfoundation.org,
	syzbot+0c85cae3350b7d486aee@...kaller.appspotmail.com
Subject: Re: [PATCH v4 net 0/2] net: sched: initialize struct tc_ife to fix
 kernel-infoleak

On Sun, Nov 09, 2025 at 02:43:34PM +0530, Ranganath V N wrote:
> This series addresses the uninitialization of the struct which has
> 2 bytes of padding. And copying this uninitialized data to userspace
> can leak info from kernel memory.
> 
> This series ensures all members and padding are cleared prior to
> begin copied.
> 
> This change silences the KMSAN report and prevents potential information
> leaks from the kernel memory.
> 
> Signed-off-by: Ranganath V N <vnranganath.20@...il.com>

Looks good to me too.

Acked-by: Cong Wang <xiyou.wangcong@...il.com>

Thanks!