From nobody Fri Apr 3 02:23:06 2026 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 D9F68ECAAD3 for ; Sun, 18 Sep 2022 01:55:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229511AbiIRBzT (ORCPT ); Sat, 17 Sep 2022 21:55:19 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53606 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229542AbiIRBzM (ORCPT ); Sat, 17 Sep 2022 21:55:12 -0400 Received: from mail-pj1-x1029.google.com (mail-pj1-x1029.google.com [IPv6:2607:f8b0:4864:20::1029]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3E09C12D1E; Sat, 17 Sep 2022 18:55:10 -0700 (PDT) Received: by mail-pj1-x1029.google.com with SMTP id a5-20020a17090aa50500b002008eeb040eso4021465pjq.1; Sat, 17 Sep 2022 18:55:10 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date; bh=XHN5cGZNT0Mc1WiNTDqhbkIEYyJhwQWVW34NwsuZveY=; b=QSHtYYigKVwfSJQ6DP+KGjpL4OiZ2hVDs+Thh526SpBdUCfX9jsai2WEVnd8ivoKN3 omMjWX7f7T43/5MJSCPjWIkTWxFoUBSjqAFTh8cHcCmJ6+q7SKLAbfCLp50Vea1DogTh uhv3C1XuA6vxHj5VG0KoM5abkuAG6ahPHNZQfE7yyy/3D+Rirxv+XT1KfOn0tiSW00F6 YCwbT4Twrm6wQO7rWH0TxphB0Ml/iR0pDE/sysien149lGUWoyYgN9r5+hWwHw/SmbBl O7fHN0nwU7kZpQ6+jQREMJg1IApp99onmrG1jDWIyieRfwYiIjL9dYGiir6KzLACXaGZ eI0w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date; bh=XHN5cGZNT0Mc1WiNTDqhbkIEYyJhwQWVW34NwsuZveY=; b=g16suYRzOdQHYvFC+05jAxOpuPhKghX0Q+AN9cduxlEN2JHThAUL7D1kX0t5CtN0gu Kfi9wuM16uzEsR+hNz+tKqAd4Tyw+Hd39lamU+LAmdFQAFQI/99/aUAx/6iIgtbQmHTC 1sUXS5zGhhW41fHUz7afG956Ddxo7nWO8uQ4UW1ZUvgYyS5IqYsiORHqpFXV0/I8bthz 09yADeN7b+toPFa0KNN0ibMxH3ndouZ5Q6TRDCtT6xybfcwTzr/c8ixwG2U/4LW2dLPb R7uCFLq5+BqCFCxh8CIl/cseEuj+dmMoj4Jilr1sEbNIXNgeusggrIvwD01fa25k9CEZ UGTg== X-Gm-Message-State: ACrzQf1fCPQxcSL9qiQaU8KoTQr8iIS7v9ZxPq4TdS75JyKeMWjmhSgB 6nQEwv1Peyw5vg0Kmory2DzPg3gQtYp/sQ== X-Google-Smtp-Source: AMsMyM5fLpjvfiQRmrZ4zSxLSq7pD/FPlm3Y4ERjZknzwa5KZbNRVo/IvOYCBZou/EsdL10HUKddMg== X-Received: by 2002:a17:903:2346:b0:178:4c17:eef7 with SMTP id c6-20020a170903234600b001784c17eef7mr6738088plh.30.1663466109246; Sat, 17 Sep 2022 18:55:09 -0700 (PDT) Received: from localhost.localdomain (lily-optiplex-3070.dynamic.ucsd.edu. [2607:f720:1300:3033::1:4dd]) by smtp.googlemail.com with ESMTPSA id f1-20020a170902f38100b001789b724712sm182178ple.232.2022.09.17.18.55.08 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 17 Sep 2022 18:55:08 -0700 (PDT) From: Li Zhong To: linux-kernel@vger.kernel.org, netdev@vger.kernel.org Cc: pabeni@redhat.com, kuba@kernel.org, edumazet@google.com, davem@davemloft.net, Li Zhong Subject: [PATCH v1] net/ethtool/tunnels: Check return value of nla_nest_start() Date: Sat, 17 Sep 2022 18:54:54 -0700 Message-Id: <20220918015454.672485-1-floridsleeves@gmail.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" Return value of nla_nest_start() could be null on error. We need to check it before we pass entry to nla_nest_end(). Signed-off-by: Li Zhong --- net/ethtool/tunnels.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/ethtool/tunnels.c b/net/ethtool/tunnels.c index efde33536687..2d6b03a35dd9 100644 --- a/net/ethtool/tunnels.c +++ b/net/ethtool/tunnels.c @@ -140,7 +140,7 @@ ethnl_tunnel_info_fill_reply(const struct ethnl_req_inf= o *req_base, if (nla_put_be16(skb, ETHTOOL_A_TUNNEL_UDP_ENTRY_PORT, htons(IANA_VXLAN_UDP_PORT)) || nla_put_u32(skb, ETHTOOL_A_TUNNEL_UDP_ENTRY_TYPE, - ilog2(UDP_TUNNEL_TYPE_VXLAN))) + ilog2(UDP_TUNNEL_TYPE_VXLAN)) || !entry) goto err_cancel_entry; =20 nla_nest_end(skb, entry); --=20 2.25.1