From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Miller Subject: Re: [PATCH net] r8152: fix the list rx_done may be used without initialization Date: Tue, 21 Mar 2017 14:37:29 -0700 (PDT) Message-ID: <20170321.143729.15606239118290633.davem@davemloft.net> References: <20170313215714.n2p6j4nxtpxbheaj@dell5510> <1394712342-15778-252-Taiwan-albertk@realtek.com> Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Cc: netdev@vger.kernel.org, petr.vorel@gmail.com, nic_swsd@realtek.com, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org To: hayeswang@realtek.com Return-path: In-Reply-To: <1394712342-15778-252-Taiwan-albertk@realtek.com> Sender: linux-kernel-owner@vger.kernel.org List-Id: netdev.vger.kernel.org From: Hayes Wang Date: Tue, 14 Mar 2017 14:15:20 +0800 > The list rx_done would be initialized when the linking on occurs. > Therefore, if a napi is scheduled without any linking on before, > the following kernel panic would happen. > > BUG: unable to handle kernel NULL pointer dereference at 000000000000008 > IP: [] r8152_poll+0xe1e/0x1210 [r8152] > PGD 0 > Oops: 0002 [#1] SMP > > Signed-off-by: Hayes Wang Applied.