netdev - Re: [PATCH net] net/sched: sch_qfq: Fix NULL deref when deactivating

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Message-ID: <aTYDlZ+uJfm7cQAn@pop-os.localdomain>
Date: Sun, 7 Dec 2025 14:45:41 -0800
From: Cong Wang <xiyou.wangcong@...il.com>
To: Xiang Mei <xmei5@....edu>
Cc: security@...nel.org, netdev@...r.kernel.org, jhs@...atatu.com,
	jiri@...nulli.us
Subject: Re: [PATCH net] net/sched: sch_qfq: Fix NULL deref when deactivating

On Thu, Dec 04, 2025 at 07:11:12PM -0700, Xiang Mei wrote:
> The PoC and intended crash are attached for your reference:
> 
> PoC:
> ```c

I hate to ask every time, but is it possible to turn this C reproducer
into a selftest? To save your time, use AI?

Maybe I should add a warning in checkpatch.pl to catch net_sched fixes
without selftests. :)

Thanks,
Cong