[Intrepid, Jaunty] SRU cifs+ipv6 regression

[Tim Gardner]

Stefan Bader wrote:
> https://bugs.launchpad.net/ubuntu/+source/linux/+bug/318565
> 
> SRU justification:
> 
> Impact: The latest stable updates[1] to Intrepid introduced a regression
> in cifs when used with ipv6 addresses. The socket address was stored in
> a container on the stack but this was not big enough for ipv6 addresses.
> Failure was only observed on 32bit system. Code is from upstream, so
> Jaunty currently is affected, too.
> 
> Fix: The following patch by Jeff Layton replaces sockaddr by
> sockaddr_storage which is large enough to contain ipv4 and ipv6 socket
> structures.
> 
> Test: Without this patch on a 32bit system the following command will
> result in an oops: mount -t cifs -o user=test,ip=2001:a60:f001:1::69
> //fileserv/pub /pub
> After applying the patch this works ok. Patch will go upstream soon.
> 
> [1] commit e1a30a33db03c2a87f49d0c164c5ade0a0a6eb97
>     Author: Steve French <sfrench at us.ibm.com>
>     Date:   Fri Nov 21 14:23:07 2008 +0530
>         cifs: clean up server protocol handling
>         commit 3ec332ef7a38c2327e18d087d4120a8e3bd3dc6e upstream.
> 

ACK - Please mark as a SAUCE patch since this one will surely originate
from upstream in a stable update. You should apply it to Jaunty as well.

-- 
Tim Gardner tim.gardner at canonical.com