From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id A7C6C46D10; Wed, 13 Aug 2025 03:07:25 +0200 (CEST) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 90D6F40670; Wed, 13 Aug 2025 03:07:25 +0200 (CEST) Received: from szxga05-in.huawei.com (szxga05-in.huawei.com [45.249.212.191]) by mails.dpdk.org (Postfix) with ESMTP id A51BB4025D; Wed, 13 Aug 2025 03:07:23 +0200 (CEST) Received: from mail.maildlp.com (unknown [172.19.162.112]) by szxga05-in.huawei.com (SkyGuard) with ESMTP id 4c1qsR0pqTz2Dc0c; Wed, 13 Aug 2025 09:04:43 +0800 (CST) Received: from kwepemk500009.china.huawei.com (unknown [7.202.194.94]) by mail.maildlp.com (Postfix) with ESMTPS id 5C2AB1401F2; Wed, 13 Aug 2025 09:07:22 +0800 (CST) Received: from [10.67.121.161] (10.67.121.161) by kwepemk500009.china.huawei.com (7.202.194.94) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.11; Wed, 13 Aug 2025 09:07:21 +0800 Message-ID: <4b82c78e-02db-4de7-976c-b670cb8bfd51@huawei.com> Date: Wed, 13 Aug 2025 09:07:21 +0800 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v5 04/22] eal: fix plugin dir walk To: David Marchand , CC: , Bruce Richardson , Tyler Retzlaff , Timothy Redaelli , Maxime Coquelin References: <20250619071037.37325-1-david.marchand@redhat.com> <20250723133157.159825-1-david.marchand@redhat.com> <20250723133157.159825-5-david.marchand@redhat.com> Content-Language: en-US From: fengchengwen In-Reply-To: <20250723133157.159825-5-david.marchand@redhat.com> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit X-Originating-IP: [10.67.121.161] X-ClientProxiedBy: kwepems100001.china.huawei.com (7.221.188.238) To kwepemk500009.china.huawei.com (7.202.194.94) 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 Acked-by: Chengwen Feng On 7/23/2025 9:31 PM, David Marchand wrote: > For '.' and '..' directories (or any short file name), > a out of bound issue occurs. > > Caught by UBSan: > > EAL: Detected shared linkage of DPDK > ../lib/eal/common/eal_common_options.c:420:15: runtime error: index -2 > out of bounds for type 'char[256]' > #0 0x7f867eedf206 in eal_plugindir_init > eal_common_options.c > #1 0x7f867eede58a in eal_plugins_init > (build/lib/librte_eal.so.25+0xde58a) > (BuildId: e7e4a1935e4bacb51c82ab1a84098a27decf3b4c) > #2 0x7f867efb8587 in rte_eal_init > (build/lib/librte_eal.so.25+0x1b8587) > (BuildId: e7e4a1935e4bacb51c82ab1a84098a27decf3b4c) > #3 0x55b62360861e in main > (/home/runner/work/dpdk/dpdk/build/app/dpdk-testpmd+0x9e061e) > (BuildId: d821ec918612c83fad8b5ccb6cc518e66bee48cd) > #4 0x7f8667429d8f in __libc_start_call_main > csu/../sysdeps/nptl/libc_start_call_main.h:58:16 > #5 0x7f8667429e3f in __libc_start_main > csu/../csu/libc-start.c:392:3 > #6 0x55b622d9d444 in _start > (/home/runner/work/dpdk/dpdk/build/app/dpdk-testpmd+0x175444) > (BuildId: d821ec918612c83fad8b5ccb6cc518e66bee48cd) > SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior > ../lib/eal/common/eal_common_options.c:420:15 in > ../lib/eal/common/eal_common_options.c:421:15: > runtime error: index 18446744073709551609 out of bounds > for type 'char[256]' > > Fixes: c57f6e5c604a ("eal: fix plugin loading") > Cc: stable@dpdk.org > > Signed-off-by: David Marchand > Acked-by: Bruce Richardson