From patchwork Wed Apr 10 09:13:03 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= X-Patchwork-Id: 1921881 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=linaro.org header.i=@linaro.org header.a=rsa-sha256 header.s=google header.b=aS/e5d5S; dkim-atps=neutral Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=patchwork.ozlabs.org) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-ECDSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4VDy0L3MYCz1yYB for ; Wed, 10 Apr 2024 19:17:38 +1000 (AEST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1ruU1e-0005mU-Io; Wed, 10 Apr 2024 05:13:50 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1ruU1d-0005l6-1X for qemu-devel@nongnu.org; Wed, 10 Apr 2024 05:13:49 -0400 Received: from mail-ed1-x52f.google.com ([2a00:1450:4864:20::52f]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1ruU1a-0005Yx-O1 for qemu-devel@nongnu.org; Wed, 10 Apr 2024 05:13:48 -0400 Received: by mail-ed1-x52f.google.com with SMTP id 4fb4d7f45d1cf-56c5d05128dso7273348a12.0 for ; Wed, 10 Apr 2024 02:13:46 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1712740424; x=1713345224; darn=nongnu.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=jcCYZ0ICkBKBb87mzxsdf9nmTwmmEuaTsn4C58m0KwA=; b=aS/e5d5SgNWtgf6Nj2rGDJQHJfapXyVAnltTsda5O+X4Z/WGVcqwz65LTqdCsBGgoi 7wCQOTsYowWo9sLeECtjxzvSu6aJuSXWXNELY5Dki+aY71CpPKPsgHyFH4cPpu8Qfu74 9qgaNfXjXE+bshp9ynWh4zTzmxrv0VzubPOKyfNWSw0v+YIQVc3JgAMp0n/AXjl4iuiV Fj39Ys+mIQhsqfsU/LrLdXjlv19YFJ9Y9eugtVW7Te3QscrXXAWBf345fZpz05KtHrw8 6xGM3oPSBlv1onypR/94aU3Sf9WJlvpvgiTbufDwZd85NJvPJqCYjDGGfET/yu8Jsq4C s22w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1712740424; x=1713345224; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=jcCYZ0ICkBKBb87mzxsdf9nmTwmmEuaTsn4C58m0KwA=; b=EKnn8W3x7IJYfAjnuu7YMdN7zk/i60hYNRAt+xBdU9e7LDHS69i2Qkg22sWnH1B2FB g1lxKmUkPc2e4yfH/I+hR9bMDGrpt6+TjbxXUgePPs1U3U4yID4SCcgztwaCk0bYFSJW 4NFbNeDT+0j+N6EJMcZUSqjJ80j+x1RDnvX6fnWtBkEGlT+53cTvkxVwPRL3RqJN8+F9 AaGEzGXAHqPLn8f9X3QjDkiH7aVGFfP/LgIW1AIvBJV7LG+tltqdxbak5fQNoLD/a9ZF LepzzmdoVGcnQiSDhEs+eRr3pl4TGQD4771BWixyCrXgVHYbRpWagvaYTvCJqlCKzoB+ B3pQ== X-Gm-Message-State: AOJu0YwKiL49ajDrlghWq+oOzPfqVvHMJojL8wVBdwyAnLNGO0DdGI92 tazT50auL1kF7ylvxX004Vk4XxR5B38YTYml2KLDDSYKQZ61sMt0OJLQRpK71nE0oFEFXcUjlKn j X-Google-Smtp-Source: AGHT+IFDjLHPBNAYm9Erw9+ciQqbdZrsdWOIKKgNeZ0U4PmnCNqCV8V9gPqSJ3jjEMYMUYJt4p2Kag== X-Received: by 2002:a50:9b19:0:b0:56e:238e:372c with SMTP id o25-20020a509b19000000b0056e238e372cmr1315225edi.26.1712740424537; Wed, 10 Apr 2024 02:13:44 -0700 (PDT) Received: from m1x-phil.lan (arl95-h02-176-184-34-173.dsl.sta.abo.bbox.fr. [176.184.34.173]) by smtp.gmail.com with ESMTPSA id b93-20020a509f66000000b0056e0376286bsm6419677edf.24.2024.04.10.02.13.42 (version=TLS1_3 cipher=TLS_CHACHA20_POLY1305_SHA256 bits=256/256); Wed, 10 Apr 2024 02:13:43 -0700 (PDT) From: =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= To: qemu-devel@nongnu.org Cc: =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= , qemu-stable@nongnu.org, Alexander Bulekov , Gerd Hoffmann , "Michael S . Tsirkin" , "Gonglei (Arei)" Subject: [PULL 04/16] hw/virtio/virtio-crypto: Protect from DMA re-entrancy bugs Date: Wed, 10 Apr 2024 11:13:03 +0200 Message-ID: <20240410091315.57241-5-philmd@linaro.org> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20240410091315.57241-1-philmd@linaro.org> References: <20240410091315.57241-1-philmd@linaro.org> MIME-Version: 1.0 Received-SPF: pass client-ip=2a00:1450:4864:20::52f; envelope-from=philmd@linaro.org; helo=mail-ed1-x52f.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Replace qemu_bh_new_guarded() by virtio_bh_new_guarded() so the bus and device use the same guard. Otherwise the DMA-reentrancy protection can be bypassed. Fixes: CVE-2024-3446 Cc: qemu-stable@nongnu.org Suggested-by: Alexander Bulekov Reviewed-by: Gerd Hoffmann Acked-by: Michael S. Tsirkin Signed-off-by: Philippe Mathieu-Daudé Reviewed-by: Michael S. Tsirkin Message-Id: <20240409105537.18308-5-philmd@linaro.org> --- hw/virtio/virtio-crypto.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/hw/virtio/virtio-crypto.c b/hw/virtio/virtio-crypto.c index fe1313f2ad..bbe8aa4b99 100644 --- a/hw/virtio/virtio-crypto.c +++ b/hw/virtio/virtio-crypto.c @@ -1080,8 +1080,8 @@ static void virtio_crypto_device_realize(DeviceState *dev, Error **errp) vcrypto->vqs[i].dataq = virtio_add_queue(vdev, 1024, virtio_crypto_handle_dataq_bh); vcrypto->vqs[i].dataq_bh = - qemu_bh_new_guarded(virtio_crypto_dataq_bh, &vcrypto->vqs[i], - &dev->mem_reentrancy_guard); + virtio_bh_new_guarded(dev, virtio_crypto_dataq_bh, + &vcrypto->vqs[i]); vcrypto->vqs[i].vcrypto = vcrypto; }