linux-kernel - Re: [PATCH] tcp: fix tcp_fastopen unaligned access complaints on sparc

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: <1c39bf41-4ebf-643a-c6a0-caf98a17a89c@oracle.com>
Date:   Thu, 12 Jan 2017 12:30:38 -0800
From:   Shannon Nelson <shannon.nelson@...cle.com>
To:     Eric Dumazet <eric.dumazet@...il.com>,
        Rob Gardner <rob.gardner@...cle.com>
Cc:     netdev@...r.kernel.org, davem@...emloft.net,
        sparclinux@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] tcp: fix tcp_fastopen unaligned access complaints on
 sparc

On 1/12/2017 12:25 PM, Eric Dumazet wrote:
> On Thu, 2017-01-12 at 13:15 -0700, Rob Gardner wrote:
>
>>
>> I suspect that someplace, somebody is casting val to an int * or
>> something like that.
>
> Then that would be the bug. Can we root cause this please ?
>
>

Look in net/ipv4/tcp_fastopen.c:tcp_fastopen_cookie_gen() for the line

	 struct in6_addr *buf = (struct in6_addr *) tmp.val;

sln