From mboxrd@z Thu Jan 1 00:00:00 1970 From: Eric Dumazet Subject: Re: [PATCH] netlink: make sure nladdr has correct size in netlink_connect() Date: Fri, 23 Mar 2018 05:57:18 -0700 Message-ID: References: <20180323124902.41625-1-glider@google.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org To: Alexander Potapenko , dvyukov@google.com, edumazet@google.com, davem@davemloft.net Return-path: In-Reply-To: <20180323124902.41625-1-glider@google.com> Content-Language: en-US Sender: linux-kernel-owner@vger.kernel.org List-Id: netdev.vger.kernel.org On 03/23/2018 05:49 AM, Alexander Potapenko wrote: > KMSAN reports use of uninitialized memory in the case when |alen| is > smaller than sizeof(struct sockaddr_nl), and therefore |nladdr| isn't > fully copied from the userspace. > > Signed-off-by: Alexander Potapenko > Fixes: 1da177e4c3f41524 ("Linux-2.6.12-rc2") Reviewed-by: Eric Dumazet Thanks Alexander.