From nobody Thu Apr 2 10:57:46 2026 Received: from forward100b.mail.yandex.net (forward100b.mail.yandex.net [178.154.239.147]) (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 9920834C9B7; Thu, 12 Feb 2026 12:18:21 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=178.154.239.147 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1770898703; cv=none; b=dVVxfI+H9LK0DQTt4wJiMpE8zsaNvR786SdC1GrqMXLzY+reuk41j6FBwWT/TgcKD7MzSfim0xFTZV3dffJz5bFOPGuaMWC95Za9Ib+t9GCxtZ2sbTVi6AA/qyB8Bv8omdErhLDTpm1H2Z/lrSjD5yvu5lUGKxgsLOpyjaPqamM= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1770898703; c=relaxed/simple; bh=i8e0Z5t7th9323WCkMyYpegZ/+lKN0RTpwAEcQcJNzs=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=d9gpwv1ApjoOBO6/V0aLndtcAh1XGhLrXI2jxrv1gP2v0/XSnrc9bYc/v9VJZnVK8CrqDQxqJ6JVSQdDC29aTDaY2t0J/xqLOrmiLHdh2O6FPquf1q07PNPsXeNpwOaTjUh6Vrqf7YOeWTYaK0Ks+vqq8PcYHQ9wJ15/kgESrw8= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=yandex.ru; spf=pass smtp.mailfrom=yandex.ru; dkim=pass (1024-bit key) header.d=yandex.ru header.i=@yandex.ru header.b=jFaq76L8; arc=none smtp.client-ip=178.154.239.147 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=yandex.ru Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=yandex.ru Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=yandex.ru header.i=@yandex.ru header.b="jFaq76L8" Received: from mail-nwsmtp-smtp-production-main-59.iva.yp-c.yandex.net (mail-nwsmtp-smtp-production-main-59.iva.yp-c.yandex.net [IPv6:2a02:6b8:c0c:489d:0:640:baa6:0]) by forward100b.mail.yandex.net (Yandex) with ESMTPS id 0798A80719; Thu, 12 Feb 2026 15:18:14 +0300 (MSK) Received: by mail-nwsmtp-smtp-production-main-59.iva.yp-c.yandex.net (smtp/Yandex) with ESMTPSA id pHTFRX8GA8c0-5PwIjyTc; Thu, 12 Feb 2026 15:18:13 +0300 X-Yandex-Fwd: 1 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yandex.ru; s=mail; t=1770898693; bh=l2rzyeifuTvLESFEtUsG8awO2sxZc/zhl6syNBHYDnA=; h=Message-ID:Date:In-Reply-To:Cc:Subject:References:To:From; b=jFaq76L8RYZUuxPYqoq9iKSkTBA4PZsTVybY+i+IHmbYbJQROVKW0tQYdqIOE1vHQ CHWbt2n2RL6jD3GaH9W2wZzKNZbJ+XFHYOrRgGCluTBhSPfELSjJ9EOgCHv1/yW2mK EaLzyjXgI2fzHZte0Jn4SS4W8AdnDuZvXKlD2qvc= Authentication-Results: mail-nwsmtp-smtp-production-main-59.iva.yp-c.yandex.net; dkim=pass header.i=@yandex.ru From: m.limarencko@yandex.ru To: jjohnson@kernel.org Cc: linux-wireless@vger.kernel.org, ath12k@lists.infradead.org, linux-kernel@vger.kernel.org, Mikhail Limarenko Subject: [PATCH ath-next v2 4/4] wifi: ath12k: sanitize invalid MCS metadata in monitor rx path Date: Thu, 12 Feb 2026 15:17:46 +0300 Message-ID: <20260212121746.329619-5-m.limarencko@yandex.ru> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260212121746.329619-1-m.limarencko@yandex.ru> References: <20260212121746.329619-1-m.limarencko@yandex.ru> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Mikhail Limarenko Apply the same invalid-MCS hardening in monitor path status conversion to keep metadata handling consistent in both data and monitor pipelines. Tested-on: QCNFA765 (WCN785x), kernel 6.18.5+deb13-amd64 Signed-off-by: Mikhail Limarenko --- drivers/net/wireless/ath/ath12k/dp_mon.c | 38 ++++++++++++++---------- 1 file changed, 23 insertions(+), 15 deletions(-) diff --git a/drivers/net/wireless/ath/ath12k/dp_mon.c b/drivers/net/wireles= s/ath/ath12k/dp_mon.c index 009c495..6e894ef 100644 --- a/drivers/net/wireless/ath/ath12k/dp_mon.c +++ b/drivers/net/wireless/ath/ath12k/dp_mon.c @@ -1922,9 +1922,11 @@ ath12k_dp_mon_fill_rx_rate(struct ath12k *ar, case RX_MSDU_START_PKT_TYPE_11N: rx_status->encoding =3D RX_ENC_HT; if (rate_mcs > ATH12K_HT_MCS_MAX) { - ath12k_warn(ar->ab, - "Received with invalid mcs in HT mode %d\n", - rate_mcs); + dev_warn_ratelimited(ar->ab->dev, + "ath12k: invalid HT mcs %u in monitor path, forcing legacy rate = metadata\n", + rate_mcs); + rx_status->encoding =3D RX_ENC_LEGACY; + rx_status->rate_idx =3D 0; break; } rx_status->rate_idx =3D rate_mcs + (8 * (nss - 1)); @@ -1933,35 +1935,41 @@ ath12k_dp_mon_fill_rx_rate(struct ath12k *ar, break; case RX_MSDU_START_PKT_TYPE_11AC: rx_status->encoding =3D RX_ENC_VHT; - rx_status->rate_idx =3D rate_mcs; if (rate_mcs > ATH12K_VHT_MCS_MAX) { - ath12k_warn(ar->ab, - "Received with invalid mcs in VHT mode %d\n", - rate_mcs); + dev_warn_ratelimited(ar->ab->dev, + "ath12k: invalid VHT mcs %u in monitor path, forcing legacy rate= metadata\n", + rate_mcs); + rx_status->encoding =3D RX_ENC_LEGACY; + rx_status->rate_idx =3D 0; break; } + rx_status->rate_idx =3D rate_mcs; if (sgi) rx_status->enc_flags |=3D RX_ENC_FLAG_SHORT_GI; break; case RX_MSDU_START_PKT_TYPE_11AX: - rx_status->rate_idx =3D rate_mcs; if (rate_mcs > ATH12K_HE_MCS_MAX) { - ath12k_warn(ar->ab, - "Received with invalid mcs in HE mode %d\n", - rate_mcs); + dev_warn_ratelimited(ar->ab->dev, + "ath12k: invalid HE mcs %u in monitor path, forcing legacy rate = metadata\n", + rate_mcs); + rx_status->encoding =3D RX_ENC_LEGACY; + rx_status->rate_idx =3D 0; break; } + rx_status->rate_idx =3D rate_mcs; rx_status->encoding =3D RX_ENC_HE; rx_status->he_gi =3D ath12k_he_gi_to_nl80211_he_gi(sgi); break; case RX_MSDU_START_PKT_TYPE_11BE: - rx_status->rate_idx =3D rate_mcs; if (rate_mcs > ATH12K_EHT_MCS_MAX) { - ath12k_warn(ar->ab, - "Received with invalid mcs in EHT mode %d\n", - rate_mcs); + dev_warn_ratelimited(ar->ab->dev, + "ath12k: invalid EHT mcs %u in monitor path, forcing legacy rate= metadata\n", + rate_mcs); + rx_status->encoding =3D RX_ENC_LEGACY; + rx_status->rate_idx =3D 0; break; } + rx_status->rate_idx =3D rate_mcs; rx_status->encoding =3D RX_ENC_EHT; rx_status->he_gi =3D ath12k_he_gi_to_nl80211_he_gi(sgi); break; --=20 2.47.3