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 722D851118B; Wed, 30 Sep 2026 16:07:19 +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=1790784442; cv=none; b=uy47krRuWWwT4MhOauMSxlrZUSTwDTQuFO571B5rLtXklTI3vnq29sxRjVPawQayQPNW3jYhtSVAQRoWz5dWRsBDoySMB3HSiVGth1t91ny6m6U1nefXkBFRfxsBWSk66Pcy8h7/p3TWZm4gyZDwMEleNGBLeB1GfgdRtMHWSDA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790784442; c=relaxed/simple; bh=EQOfnEy1mYU95O7UnWlfPC0Z7ROEQnpcOaWQZT4QNfA=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=IIyr1LlEvysI7l36O68lt5KrzX3SawOAJLbJ3nLDPf/dPM7Ol9DXvwPI13GI2gzFmZDM6iTYoyFmpHqer12uwxM05tFhGxoI9yloe9VOCEgtmxoR7g9vdAehjPd4SxjjCMEitbsbTYO4Du8G5YywXw6jxZ8pFZGnlpgp/UJNs3A= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=N8hWCCow; 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="N8hWCCow" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 867391F00899; Wed, 30 Sep 2026 16:07:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1790784437; bh=bzYkCrFFeRMHwJCMVxEi+84uaIPHs/WO9EuZ2mSV/1c=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=N8hWCCowlqMQEBhusmIuHitb1Mvmiud1rJDTAj9xvuTtIcZru+QxCvzR+x8tJduSn xcgZqIfK9gQJg/t4+nuxFAhvKB+Ph/dri4lrPbyOCvViIr+DmWJ+O+/GrEk+BgunUf vbD62n9/m3tmk1eP0gk2VFX759XQj0dbLlPaUNrI= 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 6.1 154/982] wifi: nl80211: Increase ie_len size to prevent truncated IEs in new peer notifications Date: Wed, 30 Sep 2026 17:14:50 +0200 Message-ID: <20260930152420.118957290@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260930152416.775402466@linuxfoundation.org> References: <20260930152416.775402466@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 6.1-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 f39a60475c24c..90aad35cccc10 100644 --- a/include/net/cfg80211.h +++ b/include/net/cfg80211.h @@ -7273,7 +7273,7 @@ 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 069b04c29b64e..aa85e2e063bbc 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -18280,7 +18280,7 @@ 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