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 E92264BEE2A; Sat, 12 Sep 2026 10:31:34 +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=1789209096; cv=none; b=ZtVhGnjcVEjVxgmT0UhHmK/wQMLMnMV4khHdHW2k1jGOSO5T8KsD7gsul7XKnpWd31VU3uMBuI/5FJwLd4qHOFT+mdAMEMOn+XYM7HqQDXVpJQIdlDZtVHituq1uetykP3YgsJXoGYY9p8u4lPEIyigKxGUKREzwfa1NW+D0W5U= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789209096; c=relaxed/simple; bh=6iLlKBdKkiVgrtEtE6dKTakbs0sbTKe6WAOyQk3j1ZU=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=A83/Jci3Cll3dtM7HNOTVjegPX5fOOV3mdvfsY1uJ7WZhGIkxVyJN4V+yG2qBuJJkW1X36zJ1Wu0nRVsSnDnjtx1eB5Y6PMghuAqMZhkTKO5McnLcYEJKYS99D8wPPVDvMC6VDG3Yk9TtDxFfgs9JhcmSbnuX6HndN6XtSFP/7w= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=W3vz56el; 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="W3vz56el" Received: by smtp.kernel.org (Postfix) with ESMTPSA id DD5121F00898; Sat, 12 Sep 2026 10:31:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1789209094; bh=9484CAs+0PzPeaTfHwIzYgHQWQ6ewfo0PrxqU0EFDY4=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=W3vz56elWeFGXb9Q/iiiA6SOiEll1i++QzyXdI73uKDO0d6HxxqC1b2qQN51Jf7p6 KXymc4KcKeolZueU/sheWFPgTxw+jNXUtp/1QQlCZPRxBhxycMK3ArNMLeufC3yBaA 5beEdu26dUnsf+ctq9HIh6wJlIIM5VQ83m804Rlg= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Felix Fietkau , Sasha Levin Subject: [PATCH 6.18 0752/1518] wifi: mt76: fix uninitialised RXDMAD_C descriptor info Date: Sat, 12 Sep 2026 08:48:41 +0200 Message-ID: <20260912065640.441954118@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260912065623.398859879@linuxfoundation.org> References: <20260912065623.398859879@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: Felix Fietkau [ Upstream commit d3ecac68f73b11828e72eaf7952a9beb5caea12b ] Unlike other WED-RRO queues, RXDMAD_C frames continue into the skb build path, but mt76_dma_get_buf() skips the desc->info read for RRO queues, so the uninitialised on-stack info was stored into skb->cb and passed to rx_skb(); initialise it to zero. Fixes: e50d4d710efd ("wifi: mt76: Add mt76_dma_get_rxdmad_c_buf utility routione") Link: https://patch.msgid.link/20260722082610.2699628-16-nbd@nbd.name Signed-off-by: Felix Fietkau Signed-off-by: Sasha Levin --- drivers/net/wireless/mediatek/mt76/dma.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/wireless/mediatek/mt76/dma.c b/drivers/net/wireless/mediatek/mt76/dma.c index 0ba93290b00d3..3fcd0c46ecd94 100644 --- a/drivers/net/wireless/mediatek/mt76/dma.c +++ b/drivers/net/wireless/mediatek/mt76/dma.c @@ -988,7 +988,7 @@ mt76_dma_rx_process(struct mt76_dev *dev, struct mt76_queue *q, int budget) while (done < budget) { bool drop = false; - u32 info; + u32 info = 0; if (check_ddone) { if (q->tail == dma_idx) -- 2.53.0