netdev - Re: [PATCH net 1/3] ipv6: Avoid creating RTF_CACHE from a rt that is not managed by fib6 tree

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]

Date:	Thu, 12 Nov 2015 17:01:01 -0500
From:	Chris Siebenmann <cks-rhbugzilla@...toronto.edu>
To:	Martin KaFai Lau <kafai@...com>
cc:	netdev <netdev@...r.kernel.org>, Kernel Team <kernel-team@...com>,
	Chris Siebenmann <cks-rhbugzilla@...toronto.edu>,
	Hannes Frederic Sowa <hannes@...essinduktion.org>
Subject: Re: [PATCH net 1/3] ipv6: Avoid creating RTF_CACHE from a rt that is not managed by fib6 tree

> The original bug report:
> https://bugzilla.redhat.com/show_bug.cgi?id=1272571
> 
> The setup has a IPv4 GRE tunnel running in a IPSec.  The bug
> happens when ndisc starts sending router solicitation at the gre
> interface.  The simplified oops stack is like:
[...]
> Reported-by: Chris Siebenmann <cks-rhbugzilla@...toronto.edu>

 For what it's worth, this change appears to fix my issue in preliminary
testing. I haven't actually brought it up on a production machine with a
GRE tunnel that actually works, but the sequence of operations on my
test machine that used to reliably oops no longer does so.

(I tested this against both a quite recent upstream git pull and the
current Fedora 22 kernel source with this patch blindly shoved in on top
by just running 'patch'.)

	- cks
--
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