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 DA6F5C43458 for ; Tue, 7 Jul 2026 16:40:30 +0000 (UTC) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 545614068A; Tue, 7 Jul 2026 18:40:26 +0200 (CEST) Received: from mail-pf1-f201.google.com (mail-pf1-f201.google.com [209.85.210.201]) by mails.dpdk.org (Postfix) with ESMTP id 048924067B for ; Tue, 7 Jul 2026 18:40:25 +0200 (CEST) Received: by mail-pf1-f201.google.com with SMTP id d2e1a72fcca58-845bc2e658aso4130390b3a.3 for ; Tue, 07 Jul 2026 09:40:24 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20251104; t=1783442424; x=1784047224; darn=dpdk.org; h=content-type:cc:to:from:subject:message-id:references:mime-version :in-reply-to:date:from:to:cc:subject:date:message-id:reply-to :content-type; bh=DqUu3RQgNLV7VkPBILUAmO9nSpS4tPJ7xHXnCPWCqcA=; b=aj9WgdPOKrywkxAFf5bv/9JWgfRSG9FvJmQ2agD3T9TxAESkcFevBJ1zIoCqg5vbB3 /LVpomNGMHOmiMynZBqLbfue5FrjrHLCXU+HgR8LTd1fphX2JL5leC2AY+/4HgsBzNTz 9Ps0GA72nUlRXcItfgRt6zCg0tn0koLv8sz8j1tKxOQvyUx5ytj3PUHXOhf95LdWLtyo PLpL3gloCKB18LJzCpiU93A2UKu7l7NOAqKg5LkosfnqnjFX6RMZZ3CqsWIdLcXRsXAq echtmQJeoHkiApUktCkGCo6KjudqeA+saDitdM+N8d1FXNGckZED80F91XyYWiWkFirk 01BA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1783442424; x=1784047224; h=content-type: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:content-type; bh=DqUu3RQgNLV7VkPBILUAmO9nSpS4tPJ7xHXnCPWCqcA=; b=MPbsAjwiAdGaVkWYAHuROJwmgPaK4zZDeb54U8f2XDLyi0kWFU34LQSTO1tzQLZ1Z+ Atqff98C3lL746OtA3dJRN5+wTaQA9FoGlSngZHP6xImNlRI0N9oqEJIyfU9Nvu2udhU cA/WRvqG8czfMR2OCsnFOf0R1nNOZVWX0q5c7wYxMWBwnxEuU5VAZET6jAC0fZCjNRNL cXysT4EKm1rvyTWD53MvajIZqkZxwwC6FKAbGdJuXV8Rt8b481swibfZOOCKJ7l4wdhV TfLPhuK78NTrJ50p3G+R25I3T61KYN6RHh2T2coShMfhmcBcpNc4zAqdWSJ8v3l+f7DR OnKw== X-Gm-Message-State: AOJu0YyCYilpjaXPla61n+kA1y2YHMnLLx3YFnmHudXC/vDU7kR2tIy4 OmxpvZWRHbNSIMhc7aBsxIAIc2Zmwv1R5awQNUgHWGN+fBlOHURjfdpk50Mi0Ar4SMeoQLALcoa cMXD3YIsVcEBkPA== X-Received: from pfbhm3.prod.google.com ([2002:a05:6a00:6703:b0:847:8fa5:76bc]) (user=joshwash job=prod-delivery.src-stubby-dispatcher) by 2002:a05:6a00:6f60:b0:848:2eac:bfb9 with SMTP id d2e1a72fcca58-8482eacc4a7mr2850310b3a.59.1783442423601; Tue, 07 Jul 2026 09:40:23 -0700 (PDT) Date: Tue, 7 Jul 2026 09:40:11 -0700 In-Reply-To: <20260707164020.2936476-1-joshwash@google.com> Mime-Version: 1.0 References: <20260703131308.2507403-1-joshwash@google.com> <20260707164020.2936476-1-joshwash@google.com> X-Mailer: git-send-email 2.55.0.795.g602f6c329a-goog Message-ID: <20260707164020.2936476-2-joshwash@google.com> Subject: [PATCH v3 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.rc2.803.g1fd1e6609c-goog