Re: [PATCH RFC] overlayfs,xattr: allow unprivileged users to whiteout

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Tue, Feb 25, 2014 at 6:31 PM, Serge Hallyn <serge.hallyn@xxxxxxxxxx> wrote:
> To mark a file which exists in the lower layer as deleted,
> it creates a symbolic link to a file called "(overlay-whiteout)"
> in the writeable mount, and sets a "trusted.overlay" xattr
> on that link.
>
> 1. When the create the symbolic link as container root, not
> as the global root
>
> 2. Allow root in a container to edit "trusted.overlay*"
> xattrs.  Generally only global root is allowed to edit
> "trusted.*"

Shouldn't overlayfs just skip the permission checks and call
__vfs_setxattr_noperm() instead?

Thanks,
Miklos
--
To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html




[Index of Archives]     [Linux Ext4 Filesystem]     [Union Filesystem]     [Filesystem Testing]     [Ceph Users]     [Ecryptfs]     [AutoFS]     [Kernel Newbies]     [Share Photos]     [Security]     [Netfilter]     [Bugtraq]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux Cachefs]     [Reiser Filesystem]     [Linux RAID]     [Samba]     [Device Mapper]     [CEPH Development]
  Powered by Linux