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 650A4C44501 for ; Thu, 9 Jul 2026 04:07:50 +0000 (UTC) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 924B74068A; Thu, 9 Jul 2026 06:07:45 +0200 (CEST) Received: from mail-pl1-f201.google.com (mail-pl1-f201.google.com [209.85.214.201]) by mails.dpdk.org (Postfix) with ESMTP id DC24C4067C for ; Thu, 9 Jul 2026 06:07:43 +0200 (CEST) Received: by mail-pl1-f201.google.com with SMTP id d9443c01a7336-2cca5e0a0c9so29360865ad.1 for ; Wed, 08 Jul 2026 21:07:43 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20251104; t=1783570063; x=1784174863; 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=41y4wIsIpuC6IDIkiS38QYAbnUut/LgYJuRiCuOjKN4=; b=jZzjSVmOciC4Z5dKZZsVQPkrkdx43k2lAL15DsMIXKlSY20JfDVvVYWk2iEGvkHDSm B3X1IYTorG1CKuCQ8Cl8ilSDVHU74Jykrpw0LrD0pgI4tITmetywqNL6m1r8B9Fi4QrJ xaeQZluE6sWV2MKwxhsB0M8Qpi8AQz+R5jg6WOwlz5Jt5feXGolEuwHQAWA9KYC3xW05 tU+Xla5TkPuvrddLUkChUGTrlmol+NwxbSl7bbQCC9kivyLzGjWIx7+LHtF3cO3klQUD b8FXde8HuhqLVtzTeX6DGs6QYbJ1dLuBIhj9NtI6OwQvb0LmDeb6K9bzNnxamSJeTyuC i+0w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1783570063; x=1784174863; 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=41y4wIsIpuC6IDIkiS38QYAbnUut/LgYJuRiCuOjKN4=; b=HKALnEO66OHyrudgGVBQacxCSXPkuypMN1wk2LP7L3a1yJeQ238i3Mp2DY/DurHiiO 8lLX8UqqiuR5d2uG7m8OMB6JWdYzTO2o4CcH/2if5DsOfsTpn2egOEcYz1YXCFMH8stO sAeVM5Z2epbfJHFvlS1R7HkXv7lWzuXTYAvNM4sfVDVBfww+oqQGGicXO4TfDmQdvimn 9NW19sDpLC3YgsvfAYsQ+PcRsfmj9kd0kvYLJw+u/vGfg7Aa5CKELMRhAedkYogMTk9u biytRjZ7miSHWOMOMxsrLobSNkojDqIbd55E1YZ4mjRaaVp7x+9/ac6q5K84bs4ABANf BQHA== X-Gm-Message-State: AOJu0Yz7W76toT403bfTyXf/NAFZ/jSXudQEVVsPMrd9Wpi7flJEa/H0 V+OfV+wDoe5qll/tCR6dkCxn98caL4+wwCg4luxiy5IURpwfplGW6aoikZuOpckli4NOTkO7NMM Ho+IkUpFJ/j/kGg== X-Received: from plbbd12.prod.google.com ([2002:a17:902:830c:b0:2cc:8271:578d]) (user=joshwash job=prod-delivery.src-stubby-dispatcher) by 2002:a17:902:db04:b0:2c9:97a7:3278 with SMTP id d9443c01a7336-2ccea483c06mr55654395ad.41.1783570062765; Wed, 08 Jul 2026 21:07:42 -0700 (PDT) Date: Wed, 8 Jul 2026 21:07:29 -0700 In-Reply-To: <20260709040739.3184955-1-joshwash@google.com> Mime-Version: 1.0 References: <20260707164020.2936476-1-joshwash@google.com> <20260709040739.3184955-1-joshwash@google.com> X-Mailer: git-send-email 2.55.0.795.g602f6c329a-goog Message-ID: <20260709040739.3184955-2-joshwash@google.com> Subject: [PATCH v4 1/9] net/gve: clear out shared memory region for stats report From: Joshua Washington To: Jeroen de Borst , Joshua Washington , Rushil Gupta , Ferruh Yigit 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); -- 2.55.0.795.g602f6c329a-goog