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=-9.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable 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 993ECC433FF for ; Fri, 2 Aug 2019 10:03:19 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 68D7B2067D for ; Fri, 2 Aug 2019 10:03:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1564740199; bh=ARtThotik/fI83JySmVBSkBR1V/J+IsDANpmGcqlpV8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=z8BJWwa9+lxV7ScJodqAGN9fMPGO5m6VtW1ygZeMmZDK2l+06W8N7Bt/al7RZXD+k dYAV8ef47uIyOVdSpe28FQb/qBnYKUxRqJm1PuFKB/KiyipUfmVKTXfevxG40vkPQf WJ0NA/MsyoMFu5/aon4yP6wmHrfDnOHS4Y4xv0ts= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2407174AbfHBKDS (ORCPT ); Fri, 2 Aug 2019 06:03:18 -0400 Received: from mail.kernel.org ([198.145.29.99]:43542 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2404702AbfHBJln (ORCPT ); Fri, 2 Aug 2019 05:41:43 -0400 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 3F8A920880; Fri, 2 Aug 2019 09:41:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1564738902; bh=ARtThotik/fI83JySmVBSkBR1V/J+IsDANpmGcqlpV8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Tx+cj7infDOy9omR17yW29FU4T4pw9cgDSekWHBdq2OSvm6HnUE08yP+cMlgqOnDA FpdTdVqNgbee0B2Q1tVHtOMQc9vq6cBkK49K7APv/qQeZuE5aQQU2SSQ3/bR0GPRkb 8EcfmuYOM57gCyXKAEMB/8JOK3S20LKImQ8ZY4LA= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Anirudh Gupta , Nicolas Dichtel , Herbert Xu , Steffen Klassert , Sasha Levin Subject: [PATCH 4.9 040/223] xfrm: fix sa selector validation Date: Fri, 2 Aug 2019 11:34:25 +0200 Message-Id: <20190802092241.585589553@linuxfoundation.org> X-Mailer: git-send-email 2.22.0 In-Reply-To: <20190802092238.692035242@linuxfoundation.org> References: <20190802092238.692035242@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org [ Upstream commit b8d6d0079757cbd1b69724cfd1c08e2171c68cee ] After commit b38ff4075a80, the following command does not work anymore: $ ip xfrm state add src 10.125.0.2 dst 10.125.0.1 proto esp spi 34 reqid 1 \ mode tunnel enc 'cbc(aes)' 0xb0abdba8b782ad9d364ec81e3a7d82a1 auth-trunc \ 'hmac(sha1)' 0xe26609ebd00acb6a4d51fca13e49ea78a72c73e6 96 flag align4 In fact, the selector is not mandatory, allow the user to provide an empty selector. Fixes: b38ff4075a80 ("xfrm: Fix xfrm sel prefix length validation") CC: Anirudh Gupta Signed-off-by: Nicolas Dichtel Acked-by: Herbert Xu Signed-off-by: Steffen Klassert Signed-off-by: Sasha Levin --- net/xfrm/xfrm_user.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/net/xfrm/xfrm_user.c b/net/xfrm/xfrm_user.c index df4b7fc721f6..f3e9d500fa5a 100644 --- a/net/xfrm/xfrm_user.c +++ b/net/xfrm/xfrm_user.c @@ -166,6 +166,9 @@ static int verify_newsa_info(struct xfrm_usersa_info *p, } switch (p->sel.family) { + case AF_UNSPEC: + break; + case AF_INET: if (p->sel.prefixlen_d > 32 || p->sel.prefixlen_s > 32) goto out; -- 2.20.1