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 X-Spam-Level: X-Spam-Status: No, score=-10.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2E49AC76191 for ; Mon, 15 Jul 2019 14:28:01 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 07E0421850 for ; Mon, 15 Jul 2019 14:28:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1563200881; bh=nw0bhWN22ol0B/YQQyU6ci3+WNhpdXGVRICZGPGzAKU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=T4lvULxIG+DQEb0wlKMhO/Oa6reHSqPUGHcRnmLNSACGl2h/gIOXVHq4EiGLpSM6n 8WREJfzttGyYvHkmG/ax5h4JtWoL/dDJsuYtMmDb5+re0CEl7C6tRruWrMJ5Gtc5p2 4Xsvi5oIQNObgDP9p3mxR/Piu8nTdD2tU6oq4Dd8= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2403760AbfGOO2A (ORCPT ); Mon, 15 Jul 2019 10:28:00 -0400 Received: from mail.kernel.org ([198.145.29.99]:37742 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2391097AbfGOO14 (ORCPT ); Mon, 15 Jul 2019 10:27:56 -0400 Received: from sasha-vm.mshome.net (unknown [73.61.17.35]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id BB4D8217F4; Mon, 15 Jul 2019 14:27:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1563200876; bh=nw0bhWN22ol0B/YQQyU6ci3+WNhpdXGVRICZGPGzAKU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=IabpGdIjPGXm1KFLaS82PAh3lxrj/sOIPAJablVMD2r/A3DoNS3Yi2MEeBlDVRSA4 WSt4mOAACXxYcSNBbP73rp8SFMFUzsFxpafHrJP3S2hZU2b6UBIG0hrLaZSsYGdqJr 4RH42QIn/YYasjYCcwgQSLVhAVkQ07ULnvCsWV/s= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Taehee Yoo , "David S . Miller" , Sasha Levin , osmocom-net-gprs@lists.osmocom.org, netdev@vger.kernel.org Subject: [PATCH AUTOSEL 4.19 152/158] gtp: add missing gtp_encap_disable_sock() in gtp_encap_enable() Date: Mon, 15 Jul 2019 10:18:03 -0400 Message-Id: <20190715141809.8445-152-sashal@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190715141809.8445-1-sashal@kernel.org> References: <20190715141809.8445-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Taehee Yoo [ Upstream commit e30155fd23c9c141cbe7d99b786e10a83a328837 ] If an invalid role is sent from user space, gtp_encap_enable() will fail. Then, it should call gtp_encap_disable_sock() but current code doesn't. It makes memory leak. Fixes: 91ed81f9abc7 ("gtp: support SGSN-side tunnels") Signed-off-by: Taehee Yoo Signed-off-by: David S. Miller Signed-off-by: Sasha Levin --- drivers/net/gtp.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/net/gtp.c b/drivers/net/gtp.c index 7a145172d503..83488f2bf7a0 100644 --- a/drivers/net/gtp.c +++ b/drivers/net/gtp.c @@ -847,8 +847,13 @@ static int gtp_encap_enable(struct gtp_dev *gtp, struct nlattr *data[]) if (data[IFLA_GTP_ROLE]) { role = nla_get_u32(data[IFLA_GTP_ROLE]); - if (role > GTP_ROLE_SGSN) + if (role > GTP_ROLE_SGSN) { + if (sk0) + gtp_encap_disable_sock(sk0); + if (sk1u) + gtp_encap_disable_sock(sk1u); return -EINVAL; + } } gtp->sk0 = sk0; -- 2.20.1