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=-4.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS 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 D194AC43381 for ; Fri, 8 Mar 2019 23:20:50 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A4F822064A for ; Fri, 8 Mar 2019 23:20:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726435AbfCHXUt (ORCPT ); Fri, 8 Mar 2019 18:20:49 -0500 Received: from shards.monkeyblade.net ([23.128.96.9]:41430 "EHLO shards.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726111AbfCHXUs (ORCPT ); Fri, 8 Mar 2019 18:20:48 -0500 Received: from localhost (unknown [IPv6:2601:601:9f80:35cd::d71]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (Client did not present a certificate) (Authenticated sender: davem-davemloft) by shards.monkeyblade.net (Postfix) with ESMTPSA id 2B6711480D4F0; Fri, 8 Mar 2019 15:20:48 -0800 (PST) Date: Fri, 08 Mar 2019 15:20:47 -0800 (PST) Message-Id: <20190308.152047.1195514192232119769.davem@davemloft.net> To: edumazet@google.com Cc: netdev@vger.kernel.org, eric.dumazet@gmail.com, syzkaller@googlegroups.com, sbrivio@redhat.com, sd@queasysnail.net Subject: Re: [PATCH net] fou, fou6: avoid uninit-value in gue_err() and gue6_err() From: David Miller In-Reply-To: <20190306184100.190813-1-edumazet@google.com> References: <20190306184100.190813-1-edumazet@google.com> X-Mailer: Mew version 6.8 on Emacs 26.1 Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Greylist: Sender succeeded SMTP AUTH, not delayed by milter-greylist-4.5.12 (shards.monkeyblade.net [149.20.54.216]); Fri, 08 Mar 2019 15:20:48 -0800 (PST) Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org From: Eric Dumazet Date: Wed, 6 Mar 2019 10:41:00 -0800 > My prior commit missed the fact that these functions > were using udp_hdr() (aka skb_transport_header()) > to get access to GUE header. > > Since use pskb_transport_may_pull() does not exist yet, > we have to add transport_offset to our pskb_may_pull() calls. ... > Fixes: 26fc181e6cac ("fou, fou6: do not assume linear skbs") > Signed-off-by: Eric Dumazet > Reported-by: syzbot Applied and queued up for -stable, thanks Eric.