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From: Markus Elfring <Markus.Elfring@web.de>
To: Xiao Wu <xiaowu.417@qq.com>,
	linux-wireless@vger.kernel.org,
	Christophe Jaillet <christophe.jaillet@wanadoo.fr>,
	Johannes Berg <johannes@sipsolutions.net>,
	"John W. Linville" <linville@tuxdriver.com>
Cc: kernel-janitors@vger.kernel.org, LKML <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] wifi: cfg80211: Fix an error handling path in cfg80211_wext_siwscan()
Date: Sat, 27 Jun 2026 13:45:50 +0200	[thread overview]
Message-ID: <147239f2-452a-4100-8341-dc5dd77448eb@web.de> (raw)
In-Reply-To: <tencent_D39C654EBCC3C95DC8C48841701D8D5D2808@qq.com>

…
> The PoC uses pthread barrier synchronization to force both paths through
> the lockless check simultaneously.  It runs on wlan0 created by
> mac80211_hwsim (modprobe mac80211_hwsim radios=2).
> 
> Full PoC (compile with:  gcc -Wall -o poc poc.c -lpthread):

Thanks for your test approach.


…
>      pthread_barrier_init(&barrier_go, NULL, 2);
>      pthread_create(&nt, NULL, nl_thread, NULL);
…

Can there be a need to improve error detection and corresponding exception handling?
https://cmu-sei.github.io/secure-coding-standards/sei-cert-c-coding-standard/rules/posix-pos/pos54-c

Regards,
Markus

      reply	other threads:[~2026-06-27 11:45 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-06-20 19:48 [PATCH] wifi: cfg80211: Fix an error handling path in cfg80211_wext_siwscan() Christophe JAILLET
2026-06-22  5:25 ` XIAO WU
2026-06-27 11:45   ` Markus Elfring [this message]

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