From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 049D22DB785; Wed, 30 Sep 2026 18:52:25 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790794346; cv=none; b=r1Y+NJ2YP3hc7Eh+3IRMRy26NbjVoMnzDhkcEy8rTfFiZUR1KPdFFl7ue8vxOND0TtCeBUG3lJaeYPYHKM3neihKHWqzS/+/WeCoGME6xjx4Cq81ALhq8JZnkf+taXmA6geHPDDG5Ax2IsdilYR0DyKvCsq4aA9Hh76XSFZuJeU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790794346; c=relaxed/simple; bh=k+zOTw0mgiYPbNTt2rlcAYQyR4MJUudyImS4NcsXsA4=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=riHXj5tMeHpdIMAy4BEEpMvacSuR17r405acg7W6JICtwtI9lYyZhBYkw3aBzaCrXqVn0ytLZ1IdOKhI6MKsUFSqDW///gVze2/rUqagolc4t5/o1HM8Ufy2pPXO1WVnHvrA9v/h8iZdew6l/XjhKPoH8AzfIrmZ5KZA1Sy55oY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=omSAomlK; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="omSAomlK" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 612371F000FF; Wed, 30 Sep 2026 18:52:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1790794344; bh=+29GRE/DWMQ6ibYJ2vK7Cm/S1zKmW8P1AcdCooGjAzo=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=omSAomlKB9bNS4VDqXSTY+jxS6ZmObaXVZq1j3JI8Ide5+Atc5ybK5Scgzxo4C7vH k3ihhGU1xwjLBSrFqPF+Zuuz6htCD14kRDmnUt2tG20o9gLAOaMoO4wGqZBuUw60Az KihojYUbu0iLR4PDPDrJMy20FGF314o7aruCEQZw= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Thiyagarajan Pandiyan , Johannes Berg , Sasha Levin Subject: [PATCH 6.6 0178/1193] wifi: nl80211: Increase ie_len size to prevent truncated IEs in new peer notifications Date: Wed, 30 Sep 2026 17:14:22 +0200 Message-ID: <20260930152438.151485219@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260930152434.301151190@linuxfoundation.org> References: <20260930152434.301151190@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.6-stable review patch. If anyone has any objections, please let me know. ------------------ From: Thiyagarajan Pandiyan [ Upstream commit dfb67ae569bf0726187725b1ef8d89377778861e ] Currently, ie_len in cfg80211_notify_new_peer_candidate is defined as 1-byte field, capping the maximum IE list size at 255 bytes. When a large beacon is received, the IE list is truncated, passing incomplete data to wpa_supplicant. This causes supplicant to fail parsing the IEs. Increasing the size of ie_len to allow the full length of the IE list to be forwarded properly. Signed-off-by: Thiyagarajan Pandiyan Link: https://patch.msgid.link/20260605054307.427874-1-thiyagarajan@aerlync.com Signed-off-by: Johannes Berg Signed-off-by: Sasha Levin --- include/net/cfg80211.h | 2 +- net/wireless/nl80211.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h index 5b3a63c377d60..cda0b2907f329 100644 --- a/include/net/cfg80211.h +++ b/include/net/cfg80211.h @@ -7383,7 +7383,7 @@ void cfg80211_ibss_joined(struct net_device *dev, const u8 *bssid, * cfg80211 then sends a notification to userspace. */ void cfg80211_notify_new_peer_candidate(struct net_device *dev, - const u8 *macaddr, const u8 *ie, u8 ie_len, + const u8 *macaddr, const u8 *ie, size_t ie_len, int sig_dbm, gfp_t gfp); /** diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index 79c3c065ab0c2..e4cd5503ae119 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -18502,7 +18502,7 @@ void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev, } void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr, - const u8 *ie, u8 ie_len, + const u8 *ie, size_t ie_len, int sig_dbm, gfp_t gfp) { struct wireless_dev *wdev = dev->ieee80211_ptr; -- 2.53.0