From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 1722824FBFF; Mon, 23 Jun 2025 13:35:36 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1750685737; cv=none; b=QDRXNQ4bapE9Cia0WwquVdIcFMo5kPTDCti+E4/k4uyv2IalnNVtWlWfB8qvCz6cbSMffkve0Om73xsrvzLUQFuXft/Ars+Jr5j2IinXQ5WXiDoK7Z9+l+VNxS/+L+HP2L4gDxnR1Aio9xjdghO1Pi23MHSWP7ydB9FhmJlC/rY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1750685737; c=relaxed/simple; bh=zS1HuIDSHF+cT/Ca2g7jhZQDF98EnQpS5dWhLV1mPU0=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=jVQQc+FjblynnJqw8V8J62Vzarq4G9/whF9Jlsa2AtheGWBnRZvShvN0SgWrLevY999Z6YDFT6Y/Dl04WPKjvMSts6iaY95p+58DjMIlOYmWohl8tVCeSAMayFDYpOEvieX4Q53MYXlIscwUQrcWa8hqmYfThau/jPGy3UshC7w= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=cBgyUJDl; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="cBgyUJDl" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 47638C4CEF0; Mon, 23 Jun 2025 13:35:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1750685736; bh=zS1HuIDSHF+cT/Ca2g7jhZQDF98EnQpS5dWhLV1mPU0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=cBgyUJDll8gRTOKbtffRYiOjJPaQVxIwAp8AqyclOtClaaAj84fCs+o6I6ZUbRkSN gvrStYny8vntNYNFKRq6CNfRYmbQf6MhgMebyC7YqR46+sZPr8MSS71zEdnfwz/Qr9 oKOEAonKg2tHiXkOjrIwhnFxpekCOg6uu1AhAgSM= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Robert Morris , =?UTF-8?q?Toke=20H=C3=B8iland-J=C3=B8rgensen?= , Jeff Johnson , Sasha Levin Subject: [PATCH 5.15 062/411] wifi: ath9k_htc: Abort software beacon handling if disabled Date: Mon, 23 Jun 2025 15:03:26 +0200 Message-ID: <20250623130634.850770406@linuxfoundation.org> X-Mailer: git-send-email 2.50.0 In-Reply-To: <20250623130632.993849527@linuxfoundation.org> References: <20250623130632.993849527@linuxfoundation.org> User-Agent: quilt/0.68 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-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 5.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Toke Høiland-Jørgensen [ Upstream commit ac4e317a95a1092b5da5b9918b7118759342641c ] A malicious USB device can send a WMI_SWBA_EVENTID event from an ath9k_htc-managed device before beaconing has been enabled. This causes a device-by-zero error in the driver, leading to either a crash or an out of bounds read. Prevent this by aborting the handling in ath9k_htc_swba() if beacons are not enabled. Reported-by: Robert Morris Closes: https://lore.kernel.org/r/88967.1743099372@localhost Fixes: 832f6a18fc2a ("ath9k_htc: Add beacon slots") Signed-off-by: Toke Høiland-Jørgensen Link: https://patch.msgid.link/20250402112217.58533-1-toke@toke.dk Signed-off-by: Jeff Johnson Signed-off-by: Sasha Levin --- drivers/net/wireless/ath/ath9k/htc_drv_beacon.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_beacon.c b/drivers/net/wireless/ath/ath9k/htc_drv_beacon.c index c745897aa3d6c..259a36b4c7cb0 100644 --- a/drivers/net/wireless/ath/ath9k/htc_drv_beacon.c +++ b/drivers/net/wireless/ath/ath9k/htc_drv_beacon.c @@ -290,6 +290,9 @@ void ath9k_htc_swba(struct ath9k_htc_priv *priv, struct ath_common *common = ath9k_hw_common(priv->ah); int slot; + if (!priv->cur_beacon_conf.enable_beacon) + return; + if (swba->beacon_pending != 0) { priv->beacon.bmisscnt++; if (priv->beacon.bmisscnt > BSTUCK_THRESHOLD) { -- 2.39.5