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 CE5A94F93BA; Wed, 30 Sep 2026 15:36:36 +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=1790782604; cv=none; b=temAZFkK/LwDSWpdayRdCruovxfwyarinLEBN7qQngGkIIzlbwhwWqbIYbzWOSwnnj6+oqbTwiCGRmWcH/u751y7EN3xoSI7kNkOqnkHMO/wIiOoWRYUyc4DiYz0rQtQ3oKPWYY4RwgSkTNOz95eQlrSz+klM3px3NsYCq+vWWU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790782604; c=relaxed/simple; bh=FfrERFp66rSLVyfKxxzcDLLDDxSSYmhtCKgpUke7RGM=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=lDz8soy+aBgh1BbuEgG5hLKrCG1IJZQNbe1b8eLaoVItmpWvEUbj3T+4fq3GcnPQofCEGobuA9AMbWpNAVcaOfH4cBdRz7u8g2MFdTJBCo3zIVQMxm0T515apacqu9+WCRALaxTtcGh64AJCxOqatdcuKJw0UQvpnysKsushCYc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=Y0PmJ1/c; 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="Y0PmJ1/c" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 09B1E1F00898; Wed, 30 Sep 2026 15:36:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1790782595; bh=Y9tjLEPfy/Xy0wahCw7JkRzW0Mh7I/E8mNS5k2Xm40U=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=Y0PmJ1/c0/6B6j06Gbbyu2ME4g0qUKwAR0zCiwSswhIV3QvQJQcOV4OGs0oP/R/om ZOynRdNk2Sr1zSxB4jn09hyRvF8+TU0agUnDdR50M1XZAP9HFAvNwq0J3eU/fXmTp2 O8R/anlIEl5SJD5AKNqstHPsfKtlLMCm+cyWdO94= 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 5.10 101/595] wifi: nl80211: Increase ie_len size to prevent truncated IEs in new peer notifications Date: Wed, 30 Sep 2026 17:19:54 +0200 Message-ID: <20260930152349.910689365@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260930152347.700140858@linuxfoundation.org> References: <20260930152347.700140858@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 5.10-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 5595c2a949397..a2758f9ce340c 100644 --- a/include/net/cfg80211.h +++ b/include/net/cfg80211.h @@ -6482,7 +6482,7 @@ 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 3b2a70b467de9..506d621212e44 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -16259,7 +16259,7 @@ 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