From nobody Tue Feb 10 13:55:28 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 Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1657614678249871.436030842214; Tue, 12 Jul 2022 01:31:18 -0700 (PDT) Received: from localhost ([::1]:60216 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1oBBIb-0001Jl-71 for importer@patchew.org; Tue, 12 Jul 2022 04:31:17 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:45146) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1oBAq9-0003Ob-0m for qemu-devel@nongnu.org; Tue, 12 Jul 2022 04:01:59 -0400 Received: from mail.loongson.cn ([114.242.206.163]:57094 helo=loongson.cn) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1oBAq6-0001RL-NT for qemu-devel@nongnu.org; Tue, 12 Jul 2022 04:01:52 -0400 Received: from localhost.localdomain (unknown [10.2.5.185]) by mail.loongson.cn (Coremail) with SMTP id AQAAf9Dx_9JdKs1i3NgYAA--.15429S5; Tue, 12 Jul 2022 16:01:35 +0800 (CST) From: Xiaojuan Yang To: qemu-devel@nongnu.org Cc: richard.henderson@linaro.org, gaosong@loongson.cn, maobibo@loongson.cn, mark.cave-ayland@ilande.co.uk, mst@redhat.com, imammedo@redhat.com, ani@anisinha.ca, f4bug@amsat.org, peter.maydell@linaro.org Subject: [PATCH 3/5] target/loongarch/cpu: Fix coverity errors about excp_names Date: Tue, 12 Jul 2022 16:01:31 +0800 Message-Id: <20220712080133.4176971-4-yangxiaojuan@loongson.cn> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20220712080133.4176971-1-yangxiaojuan@loongson.cn> References: <20220712080133.4176971-1-yangxiaojuan@loongson.cn> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-CM-TRANSID: AQAAf9Dx_9JdKs1i3NgYAA--.15429S5 X-Coremail-Antispam: 1UD129KBjvJXoWruFyrury7uFW7ZryxWw17KFg_yoW8JF1xpF sFvr9FgryfJrWDZw1kJayYqrn8Xw43GFn2ga1SkFyrtr1Sqr92vF1vqa9YvF15J397XrWU uF4fAryFq3W5XaDanT9S1TB71UUUUUUqnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDU0xBIdaVrnUUvcSsGvfC2KfnxnUUI43ZEXa7xR_UUUUUUUUU== X-CM-SenderInfo: p1dqw5xldry3tdq6z05rqj20fqof0/ 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=114.242.206.163; envelope-from=yangxiaojuan@loongson.cn; helo=loongson.cn X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 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+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZM-MESSAGEID: 1657614678976100001 Content-Type: text/plain; charset="utf-8" Fix out-of-bounds errors when access excp_names[] array. the valid boundary size of excp_names should be 0 to ARRAY_SIZE(excp_names)-1. However, the general code do not consider the max boundary. Fix coverity CID: 1489758 Signed-off-by: Xiaojuan Yang Reviewed-by: Richard Henderson --- target/loongarch/cpu.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/target/loongarch/cpu.c b/target/loongarch/cpu.c index 8294b05ee8..8e17b61a85 100644 --- a/target/loongarch/cpu.c +++ b/target/loongarch/cpu.c @@ -140,7 +140,7 @@ static void loongarch_cpu_do_interrupt(CPUState *cs) =20 if (cs->exception_index !=3D EXCCODE_INT) { if (cs->exception_index < 0 || - cs->exception_index > ARRAY_SIZE(excp_names)) { + cs->exception_index >=3D ARRAY_SIZE(excp_names)) { name =3D "unknown"; } else { name =3D excp_names[cs->exception_index]; @@ -190,8 +190,8 @@ static void loongarch_cpu_do_interrupt(CPUState *cs) cause =3D cs->exception_index; break; default: - qemu_log("Error: exception(%d) '%s' has not been supported\n", - cs->exception_index, excp_names[cs->exception_index]); + qemu_log("Error: exception(%d) has not been supported\n", + cs->exception_index); abort(); } =20 --=20 2.31.1