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=1.1 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FSL_HELO_FAKE,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, T_DKIMWL_WL_HIGH,USER_AGENT_MUTT autolearn=no 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 D4F2AC4321A for ; Mon, 10 Jun 2019 20:45:27 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id ABDBC20870 for ; Mon, 10 Jun 2019 20:45:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1560199527; bh=Sl6eccgIpGpXLNppse+kSAkAyOn3m0wVLWUt3obSHyU=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-ID:From; b=wBszivhiZjnaYbwA7P66e84pL08Ro3kafs41e0lIHV952wCJ3z5uFDqcaNNVXMN5d 9+fFokVjNbLb8QGrqBqgm7EyZnuVkhBaHGEQR/7hzynBYPGtoaakg2lLLzlL+InsP3 nKQxmG7Q8TeyHJiWQoq4f9AKVUvzhtR0bBZIIZbM= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2389832AbfFJUp0 (ORCPT ); Mon, 10 Jun 2019 16:45:26 -0400 Received: from mail.kernel.org ([198.145.29.99]:55348 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2389331AbfFJUp0 (ORCPT ); Mon, 10 Jun 2019 16:45:26 -0400 Received: from gmail.com (unknown [104.132.1.77]) (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 AEBBC206E0; Mon, 10 Jun 2019 20:45:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1560199526; bh=Sl6eccgIpGpXLNppse+kSAkAyOn3m0wVLWUt3obSHyU=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=zTYSn31RcPA2WX6cjULsR/Ho2AraR/emd9uyH0WKJSCC3pPJPEjKnW/TePvawiJLE bLkMs32JvmlgZiogJd0HU6hbOkJrDAoCR333d/pCsLMdzCiRSUQ1Q7KPNx5qdgTwUS P/1zaXfSy7L902vw2AQhy2pSYKjiB+AEG/SmISFo= Date: Mon, 10 Jun 2019 13:45:24 -0700 From: Eric Biggers To: Jason Gunthorpe Cc: syzbot , dasaratharaman.chandramouli@intel.com, dledford@redhat.com, leon@kernel.org, linux-kernel@vger.kernel.org, linux-rdma@vger.kernel.org, parav@mellanox.com, roland@purestorage.com, sean.hefty@intel.com, syzkaller-bugs@googlegroups.com Subject: Re: WARNING: bad unlock balance in ucma_event_handler Message-ID: <20190610204523.GK63833@gmail.com> References: <000000000000af6530056e863794@google.com> <20180613170543.GB30019@ziepe.ca> <20190610184853.GG63833@gmail.com> <20190610194732.GH18468@ziepe.ca> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20190610194732.GH18468@ziepe.ca> User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Jun 10, 2019 at 04:47:32PM -0300, Jason Gunthorpe wrote: > > There are many unfixed syzkaller bugs in rdma_cm, so I'm not surprised > it is still happening.. > > Nobody has stepped forward to work on this code, and it is not a > simple mess to understand, let alone try to fix. > But people still use it, right? Do they not care that it's spewing syzbot reports? Are they depending on the kernel to provide any security properties? - Eric