linux-kernel - Re: BUG: WARNING in retire_sysctl

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Message-ID: <202408281812.3F765DF@keescook>
Date: Wed, 28 Aug 2024 18:26:20 -0700
From: Kees Cook <kees@...nel.org>
To: Xingyu Li <xli399@....edu>
Cc: mcgrof@...nel.org, j.granados@...sung.com, linux-kernel@...r.kernel.org,
	linux-fsdevel@...r.kernel.org, Yu Hao <yhao016@....edu>,
	"Paul E. McKenney" <paulmck@...nel.org>,
	Waiman Long <longman@...hat.com>,
	Sven Eckelmann <sven@...fation.org>,
	Thomas Gleixner <tglx@...utronix.de>, anna-maria@...utronix.de,
	frederic@...nel.org, netdev@...r.kernel.org,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>, Tejun Heo <tj@...nel.org>,
	Kuniyuki Iwashima <kuniyu@...zon.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: Re: BUG: WARNING in retire_sysctl_set

Hi,

On Wed, Aug 28, 2024 at 02:16:34PM -0700, Xingyu Li wrote:
> We found a bug in Linux 6.10. It is possibly a logic   bug.
> The bug report is as follows, but unfortunately there is no generated
> syzkaller reproducer.

I see you've sent 44 reports like this recently[1], but only have
reproducers for 4 of them[2].

Without reproducers these reports aren't very helpful. There
are hundreds like them (many with reproducers) already at:
https://syzkaller.appspot.com/upstream

Please only send these kind of reports if you have a fix for them
(preferred) or a reproducer for an actual problem. This has been mentioned
a few times already[3][4]; have you seen these replies?

-Kees

[1] https://lore.kernel.org/all/?q=f%3Axli399%40
[2] https://lore.kernel.org/all/?q=f%3Axli399%40+%22The+reproducer%22
[3] https://lore.kernel.org/netdev/CANn89iK6rq0XWO5-R5CzA5YAv2ygaTA==EVh+O74VHGDBNqUoA@mail.gmail.com/
[4] https://lore.kernel.org/all/20240829011805.92574-1-kuniyu@amazon.com/

-- 
Kees Cook