netdev - Re: [PATCH net-next] net: Fix vti use case with oif in dst lookups for IPv6

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: <561AA3FA.7070001@cumulusnetworks.com>
Date:	Sun, 11 Oct 2015 12:01:30 -0600
From:	David Ahern <dsa@...ulusnetworks.com>
To:	Hajime Tazaki <thehajime@...il.com>
Cc:	steffen.klassert@...unet.com, netdev@...r.kernel.org
Subject: Re: [PATCH net-next] net: Fix vti use case with oif in dst lookups
 for IPv6

On 10/11/15 8:24 AM, Hajime Tazaki wrote:
>
> I've faced this issue since the following patch was applied.
>
> commit 741a11d9e4103a8e1c590ef1280143fe654e4e33
> Author: David Ahern <dsa@...ulusnetworks.com>
> Date:   Mon Sep 28 10:12:13 2015 -0700
>
>      net: ipv6: Add RT6_LOOKUP_F_IFACE flag if oif is set
>
> I still couldn't spot which part (other than my posted call
> graph) is broken and am not sure whether the xfrm change
> affects or not (which I need to check the mip6 code again).

Ok, this is a separate problem from what Steffen is hitting.

>
>> Can you apply this patch, and then run:
>>
>> perf record -e fib6:* -a -g
>> perf script
>
> I'm using libos environment right now, so the perf trace
> can't be used as it is.

ok.

Some path in raw6_sendmsg is setting fl6.flowi6_oif. Can you instrument it?
--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html