From nobody Sat May 18 12:29:55 2024 Received: from mailgw.kylinos.cn (mailgw.kylinos.cn [124.126.103.232]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id C99AF1C698; Tue, 23 Apr 2024 07:40:01 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=124.126.103.232 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1713858006; cv=none; b=at++G8ZtfWYIqBY1JMys4xwmJleRpoHH3flAeRyW68LcWcGmiWokvZr7U3czgt6cd+IKofopS/vhcGqK3E5On+uKAC2imC9ed8DytHd9RyhS+5m2TLQ8yOOPRLpK1QMREjNDzPZbCKChhEKNa2xaGgzM6eSYARgJrbej5f4eIVo= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1713858006; c=relaxed/simple; bh=rzVx5hdb3cC6FEK7gSAmvqgG85mYrv1Qkhiqvdrcdss=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=uf+uxSFgwx8IEwfrMi/zr74dfghyIPB9CaxcS2E1t54J5JXx+9x3uKlF1dwGC9zEU/30MJ+JZ1QyD6KcfYE5Jr/HDl3Sy88+7N0SPOrOAbAinavFDFZktjwspoRAdYyX1xREhhGKtYpB1cgyR3wQZU0/wJdEJQeEJvRjp7xGvbM= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=kylinos.cn; spf=pass smtp.mailfrom=kylinos.cn; arc=none smtp.client-ip=124.126.103.232 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=kylinos.cn Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=kylinos.cn X-UUID: ad145562014411ef9305a59a3cc225df-20240423 X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.1.37,REQID:4bbdda0c-e953-4a54-846d-42af89c4638d,IP:20, URL:0,TC:0,Content:0,EDM:0,RT:0,SF:1,FILE:0,BULK:0,RULE:Release_Ham,ACTION :release,TS:21 X-CID-INFO: VERSION:1.1.37,REQID:4bbdda0c-e953-4a54-846d-42af89c4638d,IP:20,UR L:0,TC:0,Content:0,EDM:0,RT:0,SF:1,FILE:0,BULK:0,RULE:Release_Ham,ACTION:r elease,TS:21 X-CID-META: VersionHash:6f543d0,CLOUDID:e2988424b0684b401761229020e6ac5d,BulkI D:240423153956Q8FATKAV,BulkQuantity:0,Recheck:0,SF:66|38|24|72|19|43|74|10 2,TC:nil,Content:0,EDM:-3,IP:-2,URL:0,File:nil,RT:nil,Bulk:nil,QS:nil,BEC: nil,COL:0,OSI:0,OSA:0,AV:0,LES:1,SPR:NO,DKR:0,DKP:0,BRR:0,BRE:0 X-CID-BVR: 0 X-CID-BAS: 0,_,0,_ X-CID-FACTOR: TF_CID_SPAM_FSD,TF_CID_SPAM_FSI,TF_CID_SPAM_SNR X-UUID: ad145562014411ef9305a59a3cc225df-20240423 Received: from mail.kylinos.cn [(39.156.73.10)] by mailgw.kylinos.cn (envelope-from ) (Generic MTA) with ESMTP id 748802077; Tue, 23 Apr 2024 15:39:54 +0800 Received: from mail.kylinos.cn (localhost [127.0.0.1]) by mail.kylinos.cn (NSMail) with SMTP id 3B691E000EB9; Tue, 23 Apr 2024 15:39:54 +0800 (CST) X-ns-mid: postfix-662765CA-41198460 Received: from kernel.. (unknown [10.42.12.206]) by mail.kylinos.cn (NSMail) with ESMTPA id 95C90E000EB9; Tue, 23 Apr 2024 15:39:53 +0800 (CST) From: Kunwu Chan To: seanjc@google.com, kunwu.chan@hotmail.com, pbonzini@redhat.com, shuah@kernel.org Cc: kvm@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org, Kunwu Chan Subject: [PATCH] KVM: selftests: Add 'malloc' failure check in test_vmx_nested_state Date: Tue, 23 Apr 2024 15:39:52 +0800 Message-Id: <20240423073952.2001989-1-chentao@kylinos.cn> X-Mailer: git-send-email 2.40.1 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" There is a 'malloc' call in test_vmx_nested_state function, which can be unsuccessful. This patch will add the malloc failure checking to avoid possible null dereference and give more information about test fail reasons. Signed-off-by: Kunwu Chan Reviewed-by: Muhammad Usama Anjum --- tools/testing/selftests/kvm/x86_64/vmx_set_nested_state_test.c | 1 + 1 file changed, 1 insertion(+) diff --git a/tools/testing/selftests/kvm/x86_64/vmx_set_nested_state_test.c= b/tools/testing/selftests/kvm/x86_64/vmx_set_nested_state_test.c index 67a62a5a8895..18afc2000a74 100644 --- a/tools/testing/selftests/kvm/x86_64/vmx_set_nested_state_test.c +++ b/tools/testing/selftests/kvm/x86_64/vmx_set_nested_state_test.c @@ -91,6 +91,7 @@ void test_vmx_nested_state(struct kvm_vcpu *vcpu) const int state_sz =3D sizeof(struct kvm_nested_state) + getpagesize(); struct kvm_nested_state *state =3D (struct kvm_nested_state *)malloc(state_sz); + TEST_ASSERT(state, "-ENOMEM when allocating kvm state"); =20 /* The format must be set to 0. 0 for VMX, 1 for SVM. */ set_default_vmx_state(state, state_sz); --=20 2.40.1