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From: Johannes Berg <johannes@sipsolutions.net>
To: Slawomir Stepien <sst@poczta.fm>,
	syzkaller-bugs@googlegroups.com,  linux-wireless@vger.kernel.org
Cc: linux-kernel@vger.kernel.org, syzbot@lists.linux.dev,
	 syzbot+9bdc0c5998ab45b05030@syzkaller.appspotmail.com
Subject: Re: [PATCH 3/3] wifi: cfg80211: check if AP has been started before adding new station
Date: Fri, 04 Sep 2026 11:25:34 +0200	[thread overview]
Message-ID: <113768c35523738bdc7ab8441ecda64a063900bf.camel@sipsolutions.net> (raw)
In-Reply-To: <20260813090434.2071318-3-sst@poczta.fm>

On Thu, 2026-08-13 at 11:04 +0200, Slawomir Stepien wrote:
> 
>  	case NL80211_IFTYPE_P2P_GO:
> +		/* Add a new station only after the AP and link has been started */
> +		link_id = wdev->valid_links ? params.link_sta_params.link_id : 0;

max() maybe?

> +		if (!wdev->links[link_id].ap.beacon_interval)
> +			return -ENETDOWN;

I think the same issue might exist also for mesh, maybe address that as
well?

And I think you could have a fourth patch to clean up the mac80211 code
to no longer handle the "STA creation on AP_VLAN" case?

johannes

  reply	other threads:[~2026-09-04  9:25 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-08-13  9:04 [PATCH 1/3] wifi: cfg80211: do not support direct add of station to AP_VLAN interfaces Slawomir Stepien
2026-08-13  9:04 ` [PATCH 2/3] wifi: cfg80211: move link_id validation earlier in nl80211_new_station() Slawomir Stepien
2026-08-13  9:04 ` [PATCH 3/3] wifi: cfg80211: check if AP has been started before adding new station Slawomir Stepien
2026-09-04  9:25   ` Johannes Berg [this message]
2026-09-07  9:46     ` Slawomir Stepien
2026-09-07  9:47       ` Johannes Berg
2026-09-08  9:44     ` Slawomir Stepien
2026-09-08  9:46       ` Johannes Berg
2026-09-08 11:59         ` Slawomir Stepien
2026-09-08 12:25           ` Johannes Berg
2026-09-08 13:35             ` Slawomir Stepien
2026-09-08 13:37               ` Johannes Berg

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