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 091A35208B3; Wed, 30 Sep 2026 17:55:20 +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=1790790922; cv=none; b=FdmMxdPvntqRvtk9Zk5ZWfeB/eiTrh29m0NAmT6x2Y8rQ/GYpR7Advr6KkoLDC1kri/PO45YGb5uTTVcWJFW3cI/IyRlfnMl7UmkTNpyR25h256lzjP6V4kD+8cv+R83O+Pw8POcLGdB6q4eM6BVmPPPcP4BDvOVlSbUkhLFUiQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790790922; c=relaxed/simple; bh=ZXoQcGEC3VAWW6sP/WI5y2pHmMwGXn7B3efxoZHHCT0=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=lFJuZJNHbQnueWnIV5u/zM4vxSunaMviNj9auqXtPoAWFwQoX5NUcYexkvLdgPBFDmIQ1kDS4KAuCzd4xn0hVuSllYCZqFn3U0SzCndEZ/MnykH2nH7HEvzG3Bc7p0yAPBDtwG2RWJGCwfYJpZsEs305AYrgtrv4t8pkpMxHoVc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=kXaa+CRe; 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="kXaa+CRe" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 382671F000FF; Wed, 30 Sep 2026 17:55:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1790790920; bh=JB+OzIMJ4HCVxyFb4PxeVwFJ8cLDy/iOoocRC7DnLj0=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=kXaa+CReLdIhDxlq4XiLJCQZGDQocKpMz31zs3jTo53lYzlRn6NwQO0An0iTFKdAa 3xHnc92JsMKKeeH9wDp7i1Nx9ptUGwRAoUHMjIve4SKG/xGumfLm+73nb1wa7/ducR HNFd0bIsKmCVIs4XUIuNh8buKslZDyQT5AeeBcHI= 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 5.15 119/752] wifi: nl80211: Increase ie_len size to prevent truncated IEs in new peer notifications Date: Wed, 30 Sep 2026 17:19:49 +0200 Message-ID: <20260930152400.753971007@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260930152358.131179731@linuxfoundation.org> References: <20260930152358.131179731@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 5.15-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 3925763426618..96614abbe6600 100644 --- a/include/net/cfg80211.h +++ b/include/net/cfg80211.h @@ -6745,7 +6745,7 @@ 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 2c74da398cf4e..312163181d6b6 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -16659,7 +16659,7 @@ 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