From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2C5D2C43458 for ; Fri, 3 Jul 2026 13:13:18 +0000 (UTC) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 9233240647; Fri, 3 Jul 2026 15:13:14 +0200 (CEST) Received: from mail-pg1-f201.google.com (mail-pg1-f201.google.com [209.85.215.201]) by mails.dpdk.org (Postfix) with ESMTP id 9F80D402C5 for ; Fri, 3 Jul 2026 15:13:12 +0200 (CEST) Received: by mail-pg1-f201.google.com with SMTP id 41be03b00d2f7-c889d1eebafso1403372a12.0 for ; Fri, 03 Jul 2026 06:13:12 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20251104; t=1783084392; x=1783689192; darn=dpdk.org; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:from:to:cc:subject:date:message-id:reply-to; bh=8QGqPuGtxlfrXkOjFjhUwi6yiW21B1UHyxjELSZSr+I=; b=RPwQL6N6Z8YTJsALiGu7nq2X2Ja13Z6mvYosiqAcXMCChwFZ58f3rNXOtNM154/cGV hc8+ciJA9TSI1WZI9SZc//0u3fJ8z+SSQga5D3QzBgVjTsCMwPL4A3ndzUa45B49wLFR qGviS+WmXwa89mxYVYfJTDqUO6k22zS4vFPwD8lxJ9huEEib/5KNUvawXoxl0RFOioPx Fxanag+7dqbtSwT1fu2ZZR35QXbNjWipp+fdxgCb+qDP3rJn+fsTIEzv4eqGqXusDX4t Oq8O5XL84CAXHdSldSDkszbkK3J6iWfRJ4dtqrFrV/J0S4Sd8C14P3+Mwk9I/quFCfge dhDg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1783084392; x=1783689192; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=8QGqPuGtxlfrXkOjFjhUwi6yiW21B1UHyxjELSZSr+I=; b=Dm8I8gkcGc6a3GOwm24P5mroHmQyECuG0tDjjgOd3c51TfpRsHJhvcd2QL8xnwb/z9 sr5QNQCnn1ch6Chlg2fjfmXalnCMsHpT4zA/z170gVX/DQD1pf7KCmCgM4XUUQkQosFp 5xpq5f8kV9GYderX6YAiCHT2OR6rVWB2AHx47KseJbAjWNnzqZCfe9tvCFiSW5BXplZk HRgATLkmSlgAl54g2nkfQPyQ5yJPs7ziVQpuZz8l5h0oMLfthrcaKUZZfRaZWUIOLwVd QLQnAX7VrpCHNSp9gBczzVGeS01RbbCAW6MioqQWQVBG93DlIk7uMxDOLZvHXrJcmILy LyEQ== X-Gm-Message-State: AOJu0Yzh9r6r9bTdY5GyLMIBCCjfIQf9xAj6m2ZYemwHOZ/+uvokO9Lz uHb5qRBB4h52IxByVdMRlFxUt5/ncyNy5JVMUMQeeRQHa/DFLatNwcCU3+Ie8VyCpMQ2DrSHnja bSlHKLo+2Zh3NnA== X-Received: from pgbcp8.prod.google.com ([2002:a05:6a02:4008:b0:c9a:4ffc:3456]) (user=joshwash job=prod-delivery.src-stubby-dispatcher) by 2002:a05:6a20:bea6:b0:3bf:6c08:2848 with SMTP id adf61e73a8af0-3bff42f8287mr11535575637.55.1783084391574; Fri, 03 Jul 2026 06:13:11 -0700 (PDT) Date: Fri, 3 Jul 2026 06:12:58 -0700 In-Reply-To: <20260703131308.2507403-1-joshwash@google.com> Mime-Version: 1.0 References: <20260703131308.2507403-1-joshwash@google.com> X-Mailer: git-send-email 2.55.0.rc0.799.gd6f94ed593-goog Message-ID: <20260703131308.2507403-2-joshwash@google.com> Subject: [PATCH v2 1/9] net/gve: clear out shared memory region for stats report From: Joshua Washington To: Jeroen de Borst , Joshua Washington , Ferruh Yigit , Rushil Gupta Cc: dev@dpdk.org, stable@dpdk.org, Mark Blasko Content-Type: text/plain; charset="UTF-8" X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org The stats report memzone is allocated from hugepage memory which could possibly have had sensitive data from a previous DPDK invocation. Clear out the buffer before sharing the memory region with the virtual device to protect guest memory. Fixes: 458b53dec01e ("net/gve: enable imissed stats for GQ format") Cc: stable@dpdk.org Signed-off-by: Joshua Washington Reviewed-by: Mark Blasko --- drivers/net/gve/gve_ethdev.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/net/gve/gve_ethdev.c b/drivers/net/gve/gve_ethdev.c index 0b02dcb3ad..f73784a109 100644 --- a/drivers/net/gve/gve_ethdev.c +++ b/drivers/net/gve/gve_ethdev.c @@ -306,6 +306,8 @@ gve_alloc_stats_report(struct gve_priv *priv, if (!priv->stats_report_mem) return -ENOMEM; + memset(priv->stats_report_mem->addr, 0, priv->stats_report_mem->len); + /* offset by skipping stats written by gve. */ priv->stats_start_idx = (GVE_TX_STATS_REPORT_NUM * nb_tx_queues) + (GVE_RX_STATS_REPORT_NUM * nb_rx_queues); -- 2.55.0.rc0.799.gd6f94ed593-goog