From mboxrd@z Thu Jan 1 00:00:00 1970 From: Thomas Graf Subject: Re: [PATCH net-next] ipv6: fix crash over flow-based vxlan device Date: Thu, 23 Jul 2015 09:17:58 +0200 Message-ID: <20150723071758.GA22790@pox.localdomain> References: <1437613992-25953-1-git-send-email-weichunc@plumgrid.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: netdev@vger.kernel.org, davem@davemloft.net, ast@plumgrid.com To: Wei-Chun Chao Return-path: Received: from mail-wi0-f175.google.com ([209.85.212.175]:34670 "EHLO mail-wi0-f175.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751325AbbGWHSB (ORCPT ); Thu, 23 Jul 2015 03:18:01 -0400 Received: by wibud3 with SMTP id ud3so10645437wib.1 for ; Thu, 23 Jul 2015 00:18:00 -0700 (PDT) Content-Disposition: inline In-Reply-To: <1437613992-25953-1-git-send-email-weichunc@plumgrid.com> Sender: netdev-owner@vger.kernel.org List-ID: On 07/22/15 at 06:13pm, Wei-Chun Chao wrote: > Similar check was added in ip_rcv but not in ipv6_rcv. > > BUG: unable to handle kernel NULL pointer dereference at (null) > IP: [] ipv6_rcv+0xfa/0x500 > Call Trace: > [] ? ip_rcv+0x296/0x400 > [] ? packet_rcv+0x52/0x410 > [] __netif_receive_skb_core+0x63f/0x9a0 > [] ? br_handle_frame_finish+0x580/0x580 [bridge] > [] ? update_rq_clock.part.81+0x1c/0x40 > [] __netif_receive_skb+0x18/0x60 > [] process_backlog+0x9f/0x150 > > Fixes: ee122c79d422 (vxlan: Flow based tunneling) > Signed-off-by: Wei-Chun Chao Acked-by: Thomas Graf