Re: What's the status of 87b47932 patch - mnt: Implicitly add MNT_NODEV on remount as we do on mount

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Hi Eric, 

On Sat, Nov 29, 2014 at 05:04:03PM -0600, Eric W. Biederman wrote:
> joeyli <jlee@xxxxxxxx> writes:
> 
> > Hi Eric, 
> >
> > Sorry for bother you. I saw your patch:
> > 	mnt: Implicitly add MNT_NODEV on remount as we do on mount
> >
> > Already commited in linux-next:
> > https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git/commit/fs/namespace.c?id=87b47932f40a11280584bce260cbdb3b5f9e8b7d
> >
> > But, I didn't see this patch show in v3.18-rc kernel in Linus's git tree.
> > What's the status of 87b47932 patch? Does there have regression cases it
> > could not be merged to v3.18 kernel?
> 
> The patch actually breaks remounting filesystems that did not have
> MNT_NODEV set when theny were mounted.
> 
> The primary issue is that the bug hit at a very inopportune time in my
> life (just before kernel summit) after which I had a vacation planned
> and after that I had some serious job hunting and moving to do. 
> 
> Now I am busily trying to catch up on my queue and these long delayed
> bug fixes are the next issue.
> 
> If folks can review/test the current version of the patch (to follow in
> a moment) I would appreciate it.  Based on previous testing unless I
> have a typo what I expect to see is:
> lxc  - b0rked.  The old versions of lxc must be broken to fix the
>        security issue.
> libvirt-lxc - fixed.
> Andy's thing - fixed.
> 
> Any comments on the next user namespace breaking security fix that is
> being finalized would also be appreciated.
> 
> Eric

Thanks for your quick response and information about your patches.

Joey Lee
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