linux-kernel - Re: [PATCH] wifi: cfg80211: Prevent comparison with invalid registered dev scan req

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Message-ID: <c78aef54d57a83c874cd9092d6e50c3656540c02.camel@sipsolutions.net>
Date: Fri, 20 Jun 2025 13:01:51 +0200
From: Johannes Berg <johannes@...solutions.net>
To: Lizhi Xu <lizhi.xu@...driver.com>, 
	syzbot+189dcafc06865d38178d@...kaller.appspotmail.com
Cc: davem@...emloft.net, edumazet@...gle.com, kuba@...nel.org, 
	linux-kernel@...r.kernel.org, linux-wireless@...r.kernel.org, 
	netdev@...r.kernel.org, pabeni@...hat.com, syzkaller-bugs@...glegroups.com
Subject: Re: [PATCH] wifi: cfg80211: Prevent comparison with invalid
 registered dev scan req

On Thu, 2025-06-19 at 16:05 +0800, Lizhi Xu wrote:
> The scan req of a registered device may have been released, so it should
> be checked to be valid before comparing it with the current req.
> 

I don't understand the subject/commit log at all. You're now accepting
scan_done() with a NULL scan request, why does that make sense?

johannes