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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 18D04C4321E for ; Sun, 4 Dec 2022 06:09:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229630AbiLDGJY (ORCPT ); Sun, 4 Dec 2022 01:09:24 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55422 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229539AbiLDGJY (ORCPT ); Sun, 4 Dec 2022 01:09:24 -0500 Received: from szxga02-in.huawei.com (szxga02-in.huawei.com [45.249.212.188]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id AA270193C8; Sat, 3 Dec 2022 22:09:19 -0800 (PST) Received: from dggpeml500006.china.huawei.com (unknown [172.30.72.56]) by szxga02-in.huawei.com (SkyGuard) with ESMTP id 4NPx7g4g2dzRpWN; Sun, 4 Dec 2022 14:08:31 +0800 (CST) Received: from localhost.localdomain (10.175.112.70) by dggpeml500006.china.huawei.com (7.185.36.76) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.31; Sun, 4 Dec 2022 14:09:17 +0800 From: Zhang Changzhong To: Andreas Larsson , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Kristoffer Glembo CC: Zhang Changzhong , , Subject: [PATCH net] ethernet: aeroflex: fix potential skb leak in greth_init_rings() Date: Sun, 4 Dec 2022 14:09:08 +0800 Message-ID: <1670134149-29516-1-git-send-email-zhangchangzhong@huawei.com> X-Mailer: git-send-email 1.8.3.1 MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [10.175.112.70] X-ClientProxiedBy: dggems701-chm.china.huawei.com (10.3.19.178) To dggpeml500006.china.huawei.com (7.185.36.76) X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org The greth_init_rings() function won't free the newly allocated skb when dma_mapping_error() returns error, so add dev_kfree_skb() to fix it. Compile tested only. Fixes: d4c41139df6e ("net: Add Aeroflex Gaisler 10/100/1G Ethernet MAC driver") Signed-off-by: Zhang Changzhong --- drivers/net/ethernet/aeroflex/greth.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/ethernet/aeroflex/greth.c b/drivers/net/ethernet/aeroflex/greth.c index e104fb0..aa0d2f3 100644 --- a/drivers/net/ethernet/aeroflex/greth.c +++ b/drivers/net/ethernet/aeroflex/greth.c @@ -258,6 +258,7 @@ static int greth_init_rings(struct greth_private *greth) if (dma_mapping_error(greth->dev, dma_addr)) { if (netif_msg_ifup(greth)) dev_err(greth->dev, "Could not create initial DMA mapping\n"); + dev_kfree_skb(skb); goto cleanup; } greth->rx_skbuff[i] = skb; -- 2.9.5