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=-7.3 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=ham 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 F362FC3F2D1 for ; Wed, 4 Mar 2020 13:56:52 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id C69382166E for ; Wed, 4 Mar 2020 13:56:52 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=ziepe.ca header.i=@ziepe.ca header.b="AkyYdyS8" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729494AbgCDN4v (ORCPT ); Wed, 4 Mar 2020 08:56:51 -0500 Received: from mail-qv1-f65.google.com ([209.85.219.65]:36863 "EHLO mail-qv1-f65.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729334AbgCDN4v (ORCPT ); Wed, 4 Mar 2020 08:56:51 -0500 Received: by mail-qv1-f65.google.com with SMTP id r15so798207qve.3 for ; Wed, 04 Mar 2020 05:56:50 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ziepe.ca; s=google; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to:user-agent; bh=Rhip11nFmECovpT8lVmLzpPD3W/d2rlBg3mYVPTEngc=; b=AkyYdyS8nPkSQXKZ597tNqH6yb1SpRkXmJHVHxqVbM5fXqWPTLgiXZJ3zXtK4pSVAZ UPFlP20GJMn3HxihX5oIqnYZ6IaPCfYm950jychfRYSv+PwRaJxWif7QD3xgm7qWa2Uy uFJAxC4d73bNdcNwBOEOZl3RARtwcJAZEoUOcoh4DAzF/4yzM3GXSs18t08pn79cVE8M QsAeQmvhfW4jVZqcn5YI3kB41XAlQdDW6cF7b5WZCOqrAI0r+aHMrqZfuimI6zrmPqg8 E5KtDlY1q+Y+kBRM42S2u73yhX0o+fyzcqOcnnghBDoQIN60UyIvb7Rn6O+dlg2yr0dn g3TQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to:user-agent; bh=Rhip11nFmECovpT8lVmLzpPD3W/d2rlBg3mYVPTEngc=; b=FaoYyGc5gzAdk60F/0CQpzPi6lJU6CnTulOs4nU9dXF+a3Dz59mQKE/1hrwJhJi0ga GiS8lThy1r9CpcPsdnMj6ewFNYgh8dVLCy21HPcqpeIhz5Xs7ut8Z0jt3T+lRNNb3vHL GyGtE+6tbVR9xXEj5qhqjY5hCgDzN5SsbxsNW9dyDcqP7LJ2WGDy8GKdQx61gicny3d6 IfcnvQnh/REA1cRRUMM/lPSwqStNjMlH8g8YuqyEhMER9cQqnN0xrn71B53oEDxrAn1M MO+o6Kj5JqQ1Tvu6PTg6DWncUUTy0nme52d+MSaNN/fLkYUX8GbLBsI6mepKOMDtrXqB uoaA== X-Gm-Message-State: ANhLgQ0y542txgm3bnAG//edxFgY0w0jZVFKf8rqTyQdyxcCfDbLGwwI w0yJqLS0Hhqm53Jp+duiEEr4Zg== X-Google-Smtp-Source: ADFU+vtecS5RrQ+sxl8h3ySuGL8wlLaGGPNxYxgbTg1P8ayAf6WqAVpCIwyGNMIOM2Za30TvZrOI1w== X-Received: by 2002:ad4:58b3:: with SMTP id ea19mr2220940qvb.80.1583330210441; Wed, 04 Mar 2020 05:56:50 -0800 (PST) Received: from ziepe.ca (hlfxns017vw-142-68-57-212.dhcp-dynamic.fibreop.ns.bellaliant.net. [142.68.57.212]) by smtp.gmail.com with ESMTPSA id a6sm12453365qkn.104.2020.03.04.05.56.49 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Wed, 04 Mar 2020 05:56:49 -0800 (PST) Received: from jgg by mlx.ziepe.ca with local (Exim 4.90_1) (envelope-from ) id 1j9UW1-0008CZ-3g; Wed, 04 Mar 2020 09:56:49 -0400 Date: Wed, 4 Mar 2020 09:56:49 -0400 From: Jason Gunthorpe To: syzbot Cc: chuck.lever@oracle.com, dledford@redhat.com, leon@kernel.org, linux-kernel@vger.kernel.org, linux-rdma@vger.kernel.org, parav@mellanox.com, syzkaller-bugs@googlegroups.com, willy@infradead.org Subject: Re: BUG: corrupted list in cma_listen_on_dev Message-ID: <20200304135649.GE31668@ziepe.ca> References: <00000000000020c5d205a001c308@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <00000000000020c5d205a001c308@google.com> User-Agent: Mutt/1.9.4 (2018-02-28) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Mar 03, 2020 at 10:45:12PM -0800, syzbot wrote: > Hello, > > syzbot found the following crash on: > > HEAD commit: 63623fd4 Merge tag 'for-linus' of git://git.kernel.org/pub.. > git tree: upstream > console output: https://syzkaller.appspot.com/x/log.txt?x=11123e65e00000 > kernel config: https://syzkaller.appspot.com/x/.config?x=5d2e033af114153f > dashboard link: https://syzkaller.appspot.com/bug?extid=2b10b240fbbed30f10fb > compiler: clang version 10.0.0 (https://github.com/llvm/llvm-project/ c2443155a0fb245c8f17f2c1c72b6ea391e86e81) > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=10d3b329e00000 > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=16291291e00000 > > IMPORTANT: if you fix the bug, please add the following tag to the commit: > Reported-by: syzbot+2b10b240fbbed30f10fb@syzkaller.appspotmail.com #syz test: git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma.git for-next