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 09A1BC0015E for ; Tue, 1 Aug 2023 09:28:44 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232076AbjHAJ2m (ORCPT ); Tue, 1 Aug 2023 05:28:42 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57628 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232163AbjHAJ2Y (ORCPT ); Tue, 1 Aug 2023 05:28:24 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8501F213C for ; Tue, 1 Aug 2023 02:27:21 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 7CC05614FC for ; Tue, 1 Aug 2023 09:27:20 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 90BBEC433C7; Tue, 1 Aug 2023 09:27:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1690882039; bh=J6vCGbfp5FWz7VcQcYgSNZ4pVC3Nkfpp+15loiSdsrM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=eRdpyC8yzNUdMrEA27Ew4ts2aep7pQHsm0qbG2Y1ojHOoFfD4wTNkHtuZgxbatfYk ijD9cwhVqJefUAgNVB+mDftxPT4RghlmY/PcUOEbkbjG+CL3uNvVZrscFbUO3Sif/z fSJD1w0Vd63Q3q0kfg9Ag5bpM/2yI25sGHnZCdfw= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Yuanjun Gong , Paolo Abeni , Sasha Levin Subject: [PATCH 5.15 079/155] benet: fix return value check in be_lancer_xmit_workarounds() Date: Tue, 1 Aug 2023 11:19:51 +0200 Message-ID: <20230801091912.974131706@linuxfoundation.org> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230801091910.165050260@linuxfoundation.org> References: <20230801091910.165050260@linuxfoundation.org> User-Agent: quilt/0.67 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Yuanjun Gong [ Upstream commit 5c85f7065718a949902b238a6abd8fc907c5d3e0 ] in be_lancer_xmit_workarounds(), it should go to label 'tx_drop' if an unexpected value is returned by pskb_trim(). Fixes: 93040ae5cc8d ("be2net: Fix to trim skb for padded vlan packets to workaround an ASIC Bug") Signed-off-by: Yuanjun Gong Link: https://lore.kernel.org/r/20230725032726.15002-1-ruc_gongyuanjun@163.com Signed-off-by: Paolo Abeni Signed-off-by: Sasha Levin --- drivers/net/ethernet/emulex/benet/be_main.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c index 3ccb955eb6f23..c14a3dbd075cc 100644 --- a/drivers/net/ethernet/emulex/benet/be_main.c +++ b/drivers/net/ethernet/emulex/benet/be_main.c @@ -1139,7 +1139,8 @@ static struct sk_buff *be_lancer_xmit_workarounds(struct be_adapter *adapter, (lancer_chip(adapter) || BE3_chip(adapter) || skb_vlan_tag_present(skb)) && is_ipv4_pkt(skb)) { ip = (struct iphdr *)ip_hdr(skb); - pskb_trim(skb, eth_hdr_len + ntohs(ip->tot_len)); + if (unlikely(pskb_trim(skb, eth_hdr_len + ntohs(ip->tot_len)))) + goto tx_drop; } /* If vlan tag is already inlined in the packet, skip HW VLAN -- 2.39.2