From: Jeff King <peff@peff.net>
Date: Tue, 05 Jun 2012 14:10:39 GMT
Subject: Re: Bugreport on Ubuntu LTS: not ok - 2 Objects creation does not break ACLs with restrictive umask
Message-ID: <20120605141039.GB15640@sigill.intra.peff.net>
In-Reply-To: <20120605140449.GA15640@sigill.intra.peff.net>

On Tue, Jun 05, 2012 at 10:04:49AM -0400, Jeff King wrote:

>   # and create some files with different permissions
>   perl -MFcntl -e '
>     sysopen(X, "a", O_WRONLY|O_CREAT, 0666);
>     sysopen(X, "b", O_WRONLY|O_CREAT, 0600);
>   '
> 
>   # and then check the permissions
>   getfacl a b
> 
> which yields:
> 
>   # file: a
>   # owner: peff
>   # group: peff
>   user::rw-
>   group::---
>   mask::r--
>   other::---
> 
>   # file: b
>   # owner: peff
>   # group: peff
>   user::rw-
>   group::---
>   mask::---
>   other::---
> 
> That just seems wrong to me.

Hmm, no I'm wrong. That is OK, as the mask should be restricted by the
group permission (and it is on ext4, too). But when I traced through
git, the tmp_obj_* files are created with the right permissions on ext4,
but not on ecryptfs. Let me trace through it again...<sigh>

-Peff