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[142.68.57.212]) by smtp.gmail.com with ESMTPSA id p126sm5375393qkd.108.2020.02.28.08.17.29 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Fri, 28 Feb 2020 08:17:29 -0800 (PST) Received: from jgg by mlx.ziepe.ca with local (Exim 4.90_1) (envelope-from ) id 1j7iKO-0006xA-Oh; Fri, 28 Feb 2020 12:17:28 -0400 Date: Fri, 28 Feb 2020 12:17:28 -0400 From: Jason Gunthorpe To: Bernard Metzler Cc: dledford@redhat.com, linux-kernel@vger.kernel.org, linux-rdma@vger.kernel.org, netdev@vger.kernel.org, syzkaller-bugs@googlegroups.com Subject: Re: [PATCH for-rc] RDMA/siw: Fix failure handling during device creation Message-ID: <20200228161728.GT31668@ziepe.ca> References: <20200226142920.11074-1-bmt@zurich.ibm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200226142920.11074-1-bmt@zurich.ibm.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 Wed, Feb 26, 2020 at 03:29:20PM +0100, Bernard Metzler wrote: > A failing call to ib_device_set_netdev() during device creation > caused system crash due to xa_destroy of uninitialized xarray > hit by device deallocation. Fixed by moving xarray initialization > before potential device deallocation. > Fixes also correct propagation of ib_device_set_netdev() failure > to caller. This is for -rc, so please split into two patches. The error propagation is probably not -rc worthy Jason