From nobody Sat Feb 7 07:30:53 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org ARC-Seal: i=1; a=rsa-sha256; t=1616394394; cv=none; d=zohomail.com; s=zohoarc; b=kJKF4yx5DgD5DL8BhfYzcrhkJQqN6jd2DmsaK/K+CuYDg2bDB1c/tgK7FGtfUDVySG5BBHehQjXiAlI65/JrmDSHVhe4SKRbKXiCCz5E7cPz+az4HERcSn3hSG79PTNAnvqA6n8v0F+y+LTu2g8ZsqE4aTnYdc1EsTKLHhERbGU= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1616394394; h=Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:To; bh=ZypO/r3ZlL80/jeomDE8lGw5+jhPTLfOsFJbqgJ4nJ8=; b=bVvLdtG2ryPhuuo7q4zGc0IkMg4JE7K9oHLZcYi5942rTLyS/aZaWZfgIrNp/wiGWaPUz0RCj7cykPu1fcY6KArUEet0nOZs9LGViJY+Xn+z1G4yX1CGMQAkFpy8jiGqwkuUVMclfeD0ZSgiwjrEKBTYyk2iq1Dja6GcLjzzdjE= ARC-Authentication-Results: i=1; mx.zohomail.com; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 16163943937361007.6906607537783; Sun, 21 Mar 2021 23:26:33 -0700 (PDT) Received: from localhost ([::1]:33838 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lOE1I-0005pk-9W for importer@patchew.org; Mon, 22 Mar 2021 02:26:32 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:42462) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lODv1-00042e-K4; Mon, 22 Mar 2021 02:20:03 -0400 Received: from wout5-smtp.messagingengine.com ([64.147.123.21]:57435) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lODuz-0007Gu-AE; Mon, 22 Mar 2021 02:20:03 -0400 Received: from compute4.internal (compute4.nyi.internal [10.202.2.44]) by mailout.west.internal (Postfix) with ESMTP id E12DE12BA; Mon, 22 Mar 2021 02:19:57 -0400 (EDT) Received: from mailfrontend1 ([10.202.2.162]) by compute4.internal (MEProxy); Mon, 22 Mar 2021 02:19:58 -0400 Received: from apples.local (80-167-98-190-cable.dk.customer.tdc.net [80.167.98.190]) by mail.messagingengine.com (Postfix) with ESMTPA id 7D8E824033F; Mon, 22 Mar 2021 02:19:56 -0400 (EDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=irrelevant.dk; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; s=fm2; bh=ZypO/r3ZlL80/ jeomDE8lGw5+jhPTLfOsFJbqgJ4nJ8=; b=Xnf2Nlt7XU1FkTjzTLKyjz8Y/4P/M RlXiw05M2B9z2MKu1JNJm/VlluxVeoQnQ444f23o/k8KXpMvb2Vh7QZE1TKzGoDp QRSUe+hWmLsTDJwDD4hmCTj1a9ycp87rLP4sf8tdN7YyzNr9GPEqUmMujIcVJxpm lO0ekj9RklL8m55POUPGGJ8OvITaAPFx/CleMQFZ4c1t6fgRbHlQ9l6GPr4qF7UM q4hFqsA7S3doaaV57vgZGE6H6fjukhTD1Ircyv4TLJUepqqPZYiR4lwhJanYKEni CfAZkj4XFq4jy7OK/nlrxbLjqX6hfmzkKAVllnSSlJU+DzcT92zTNJemQ== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:content-transfer-encoding:date:from :in-reply-to:message-id:mime-version:references:subject:to :x-me-proxy:x-me-proxy:x-me-sender:x-me-sender:x-sasl-enc; s= fm2; bh=ZypO/r3ZlL80/jeomDE8lGw5+jhPTLfOsFJbqgJ4nJ8=; b=IIY68NCL H8jGRYYSrzaB6eUr71WQCaodHRVcXCcM9VBSbc0vml9nlSgQkuDSrgBtVDsQQYsF aBCPSoadpGwNbmfnfUMeeUltyVllVo2brSnkYvW3/HdiekhjMOlubHYYA13FFt6P iEgWMm6uPBDj1wPwXcnaz/zBmbBtOKCj63w6LFhrdXTpyJBd9qsBvyayZhqGahmi 4yKJXgY/gO834PGOxi9aaIdO9fieQ9SQNi88lOCyWUVmEUGzE3/YRaJBYnQCb3JQ 05IQhldwiA9KTwFwkEzu3KBpGHp6JaTTW99d75vY4R5F4p0Rw3trIkfQ6UlShUxp jCYqcL6NVSKIog== X-ME-Sender: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgeduledrudegfedgleegucetufdoteggodetrfdotf fvucfrrhhofhhilhgvmecuhfgrshhtofgrihhlpdfqfgfvpdfurfetoffkrfgpnffqhgen uceurghilhhouhhtmecufedttdenucesvcftvggtihhpihgvnhhtshculddquddttddmne cujfgurhephffvufffkffojghfggfgsedtkeertdertddtnecuhfhrohhmpefmlhgruhhs ucflvghnshgvnhcuoehithhssehirhhrvghlvghvrghnthdrughkqeenucggtffrrghtth gvrhhnpeeuleetgeeiuefhgfekfefgveejiefgteekiedtgfdtieefhfdthfefueffvefg keenucfkphepkedtrdduieejrdelkedrudeltdenucevlhhushhtvghrufhiiigvpedtne curfgrrhgrmhepmhgrihhlfhhrohhmpehithhssehirhhrvghlvghvrghnthdrughk X-ME-Proxy: From: Klaus Jensen To: qemu-devel@nongnu.org Subject: [PATCH 2/2] hw/block/nvme: fix resource leak in nvme_format_ns Date: Mon, 22 Mar 2021 07:19:51 +0100 Message-Id: <20210322061951.186748-3-its@irrelevant.dk> X-Mailer: git-send-email 2.31.0 In-Reply-To: <20210322061951.186748-1-its@irrelevant.dk> References: <20210322061951.186748-1-its@irrelevant.dk> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=64.147.123.21; envelope-from=its@irrelevant.dk; helo=wout5-smtp.messagingengine.com X-Spam_score_int: -27 X-Spam_score: -2.8 X-Spam_bar: -- X-Spam_report: (-2.8 / 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_LOW=-0.7, SPF_HELO_PASS=-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: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Kevin Wolf , qemu-block@nongnu.org, Klaus Jensen , Max Reitz , Keith Busch , Klaus Jensen Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" Content-Type: text/plain; charset="utf-8" From: Klaus Jensen In nvme_format_ns(), if the namespace is of zero size (which might be useless, but not invalid), the `count` variable will leak. Fix this by returning early in that case. Reported-by: Coverity (CID 1451082) Fixes: dc04d25e2f3f ("hw/block/nvme: add support for the format nvm command= ") Signed-off-by: Klaus Jensen --- hw/block/nvme.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/hw/block/nvme.c b/hw/block/nvme.c index 6842b01ab58b..dad275971a84 100644 --- a/hw/block/nvme.c +++ b/hw/block/nvme.c @@ -4984,6 +4984,11 @@ static uint16_t nvme_format_ns(NvmeCtrl *n, NvmeName= space *ns, uint8_t lbaf, ns->status =3D NVME_FORMAT_IN_PROGRESS; =20 len =3D ns->size; + + if (!len) { + return NVME_SUCCESS; + } + offset =3D 0; =20 count =3D g_new(int, 1); --=20 2.31.0