From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751677AbdB1Qlo (ORCPT ); Tue, 28 Feb 2017 11:41:44 -0500 Received: from aserp1050.oracle.com ([141.146.126.70]:34820 "EHLO aserp1050.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751122AbdB1QkD (ORCPT ); Tue, 28 Feb 2017 11:40:03 -0500 Date: Tue, 28 Feb 2017 11:38:33 -0500 From: Sowmini Varadhan To: Dmitry Vyukov Cc: santosh.shilimkar@oracle.com, David Miller , netdev , linux-rdma@vger.kernel.org, rds-devel@oss.oracle.com, LKML , Eric Dumazet , syzkaller Subject: Re: net/rds: use-after-free in inet_create Message-ID: <20170228163833.GI31155@oracle.com> References: <20170228153737.GG31155@oracle.com> <20170228161544.GH31155@oracle.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.24 (2015-08-30) X-Source-IP: aserp1040.oracle.com [141.146.126.69] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On (02/28/17 17:32), Dmitry Vyukov wrote: > Not reproducible so far. > > rds is compiled into kernel (no modules): > CONFIG_RDS=y > CONFIG_RDS_TCP=y I see. So if it never gets unloaded, the rds_connections "should" be around forever.. let me inspect code and see if I spot some race-window.. > Also fuzzer actively creates and destroys namespaces. > Yes, I don't see socket(0x15) in the log. Probably it was truncated. I see. May be useful if we coudl get a crash dump to see what other threads were going on (might give a hint about which threads were racing). I'll try reproducing this at my end too. --Sowmini