From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 56E50C433F5 for ; Fri, 29 Oct 2021 09:29:44 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 42C98610CB for ; Fri, 29 Oct 2021 09:29:44 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231631AbhJ2JcL (ORCPT ); Fri, 29 Oct 2021 05:32:11 -0400 Received: from szxga02-in.huawei.com ([45.249.212.188]:14878 "EHLO szxga02-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231537AbhJ2JcJ (ORCPT ); Fri, 29 Oct 2021 05:32:09 -0400 Received: from dggeme754-chm.china.huawei.com (unknown [172.30.72.56]) by szxga02-in.huawei.com (SkyGuard) with ESMTP id 4HgcZj0lJLz90RS; Fri, 29 Oct 2021 17:29:33 +0800 (CST) Received: from huawei.com (10.175.127.227) by dggeme754-chm.china.huawei.com (10.3.19.100) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2308.15; Fri, 29 Oct 2021 17:29:37 +0800 From: Ye Bin To: , , , CC: , Ye Bin Subject: [PATCH -next v3 1/2] nbd: Fix incorrect error handle when first_minor big than '0xff' in nbd_dev_add Date: Fri, 29 Oct 2021 17:42:27 +0800 Message-ID: <20211029094228.1853434-2-yebin10@huawei.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20211029094228.1853434-1-yebin10@huawei.com> References: <20211029094228.1853434-1-yebin10@huawei.com> MIME-Version: 1.0 Content-Transfer-Encoding: 7BIT Content-Type: text/plain; charset=US-ASCII X-Originating-IP: [10.175.127.227] X-ClientProxiedBy: dggems701-chm.china.huawei.com (10.3.19.178) To dggeme754-chm.china.huawei.com (10.3.19.100) X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org If first_minor big than '0xff' goto out_free_idr label, this will miss cleanup disk. Fixes: b1a811633f73 ("block: nbd: add sanity check for first_minor") Signed-off-by: Ye Bin --- drivers/block/nbd.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c index b47b2a87ae8f..096883ab9b76 100644 --- a/drivers/block/nbd.c +++ b/drivers/block/nbd.c @@ -1809,7 +1809,7 @@ static struct nbd_device *nbd_dev_add(int index, unsigned int refs) disk->first_minor = index << part_shift; if (disk->first_minor > 0xff) { err = -EINVAL; - goto out_free_idr; + goto out_err_disk; } disk->minors = 1 << part_shift; -- 2.31.1