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 B1A364FC332; Thu, 17 Sep 2026 16:59:40 +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=1789664381; cv=none; b=oU8twHuCb/mOCuuqhOVLwOnT4r3mdmbSRuqCduPCjYCOHnOxsjL8v/GIPdmul/PkiZhOeYIINBoccy5FpBnIEm9tdxmpGTJYNUKICNJbJJ34YJCOax1H1a3PMb1M7Pi5y9wOIMJ1lEtAtwjkkB0rcQ5brtSonYiqbwIzYsGVs8E= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789664381; c=relaxed/simple; bh=P8ZtOlBmcsf+KjSj2hCQ98JNKYeD1kO3JSBS5m3N4xk=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=hlrH/mPpWvtpEmqG5bCvgZX4vFc+9Kv6r1Kp+Z0/LFk0j/43F6Qop/SmKOimoyaPiIE4DhwLixT6+tASYosU/TxATpqpZiqmfC6anv18Jn0jQQ/sy48HQydTV84Cv5S/UNaGb5Cq6ySzPrRDeJ5VOKRrkbQuc+B4m2ewtpqLNkw= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=p1bLO0iP; 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="p1bLO0iP" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 0B28C1F000FF; Thu, 17 Sep 2026 16:59:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1789664380; bh=RhNwk4RZvAUZHHVhlEHRBvr1eyptgj5ZIUqlZrK9H3I=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=p1bLO0iPjiVhoQxRbv+48IyX856Nb9WKMVifLIRp2J/CJTbvmlNLdDg45zVakJZ3x gQkTZZkhyLlX6q0LThaY4o27h+PGGrTo8CIOc+i/qQFuTVvYfGkUw7UHyCSIdE6i5u fLDYFIDmNPpGLt3vaHOxZgSjYTy+NdqN/IpxX2cI= 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 6.18 0337/1250] wifi: nl80211: Increase ie_len size to prevent truncated IEs in new peer notifications Date: Thu, 17 Sep 2026 16:02:12 +0100 Message-ID: <20260917151601.218707588@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260917151551.901433442@linuxfoundation.org> References: <20260917151551.901433442@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 6.18-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 634743ba5fa66..0b9bc2247d323 100644 --- a/include/net/cfg80211.h +++ b/include/net/cfg80211.h @@ -8255,7 +8255,7 @@ 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 906a974cce5dc..28b9cd017ae38 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -20379,7 +20379,7 @@ 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