netdev - Re: [PATCH net] tunnel: fix dev null pointer dereference when send pkg larger than mtu in collect

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20190816040131.GY18865@dhcp-12-139.nay.redhat.com>
Date:   Fri, 16 Aug 2019 12:01:31 +0800
From:   Hangbin Liu <liuhangbin@...il.com>
To:     Eric Dumazet <eric.dumazet@...il.com>
Cc:     netdev@...r.kernel.org, Stefano Brivio <sbrivio@...hat.com>,
        wenxu <wenxu@...oud.cn>, Alexei Starovoitov <ast@...com>,
        "David S . Miller" <davem@...emloft.net>
Subject: Re: [PATCH net] tunnel: fix dev null pointer dereference when send
 pkg larger than mtu in collect_md mode

On Fri, Aug 16, 2019 at 11:24:18AM +0800, Hangbin Liu wrote:
> If yes, how about just set the skb dst to rt->dst, as the
> iptunnel_xmit would do later.
> 
> skb_dst_drop(skb);
> skb_dst_set(skb, &rt->dst);
> 

Tested and this donesn't work good....