From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:50780 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752495AbeDYKeQ (ORCPT ); Wed, 25 Apr 2018 06:34:16 -0400 From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Florian Westphal , Pablo Neira Ayuso Subject: [PATCH 4.16 18/26] netfilter: x_tables: cap allocations at 512 mbyte Date: Wed, 25 Apr 2018 12:33:27 +0200 Message-Id: <20180425103315.583243065@linuxfoundation.org> In-Reply-To: <20180425103314.842517924@linuxfoundation.org> References: <20180425103314.842517924@linuxfoundation.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Sender: stable-owner@vger.kernel.org List-ID: 4.16-stable review patch. If anyone has any objections, please let me know. ------------------ From: Florian Westphal commit 19926968ea86a286aa6fbea16ee3f2e7442f10f0 upstream. Arbitrary limit, however, this still allows huge rulesets (> 1 million rules). This helps with automated fuzzer as it prevents oom-killer invocation. Signed-off-by: Florian Westphal Signed-off-by: Pablo Neira Ayuso Signed-off-by: Greg Kroah-Hartman --- net/netfilter/x_tables.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) --- a/net/netfilter/x_tables.c +++ b/net/netfilter/x_tables.c @@ -40,6 +40,7 @@ MODULE_AUTHOR("Harald Welte = XT_MAX_TABLE_SIZE) return NULL; /* __GFP_NORETRY is not fully supported by kvmalloc but it should