Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752470AbcK1RuY (ORCPT ); Mon, 28 Nov 2016 12:50:24 -0500 Received: from Chamillionaire.breakpoint.cc ([146.0.238.67]:37166 "EHLO Chamillionaire.breakpoint.cc" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751033AbcK1RuR (ORCPT ); Mon, 28 Nov 2016 12:50:17 -0500 Date: Mon, 28 Nov 2016 18:47:10 +0100 From: Florian Westphal To: Neil Horman Cc: Marcelo Ricardo Leitner , Andrey Konovalov , Vlad Yasevich , linux-sctp@vger.kernel.org, netdev , LKML , Pablo Neira Ayuso , Patrick McHardy , Jozsef Kadlecsik , "David S. Miller" , netfilter-devel@vger.kernel.org, coreteam@netfilter.org, Dmitry Vyukov , Kostya Serebryany , Eric Dumazet , syzkaller Subject: Re: net/sctp: vmalloc allocation failure in sctp_setsockopt/xt_alloc_table_info Message-ID: <20161128174710.GE28510@breakpoint.cc> References: <20161128141340.GA29839@hmsreliant.think-freely.org> <20161128143931.GB29839@hmsreliant.think-freely.org> <20161128151312.GA13172@localhost.localdomain> <20161128174647.GC29839@hmsreliant.think-freely.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20161128174647.GC29839@hmsreliant.think-freely.org> User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 515 Lines: 11 Neil Horman wrote: > I'm not sure I agree with that. Generally speaking it seems like the right > thing to do, if you want to avoid filling logs with warnings, but this is the > sort of error that is going to be accompanied by severe service interruption. > I'd rather see a reason behind that in the logs, than just have it occur > silently. Its not silent -- the setsockopt call will fail and userspace should display an error. So I agree with Marcelo, lets suppress the oom spew here.