linux-kernel - Re: [PATCH v2 2/2] ceph: quota: fix quota subdir mounts

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 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:   Mon, 18 Mar 2019 14:35:08 +0530
From:   Gregory Farnum <gfarnum@...hat.com>
To:     "Yan, Zheng" <zyan@...hat.com>
Cc:     Luis Henriques <lhenriques@...e.com>, Sage Weil <sage@...hat.com>,
        Ilya Dryomov <idryomov@...il.com>,
        ceph-devel <ceph-devel@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Hendrik Peyerl <hpeyerl@...sline.net>
Subject: Re: [PATCH v2 2/2] ceph: quota: fix quota subdir mounts

On Mon, Mar 18, 2019 at 2:32 PM Yan, Zheng <ukernel@...il.com> wrote:
> After reading the code carefully. I feel a little uncomfortable with
> the "lookup_ino" in get_quota_realm.  how about populating directories
> above the 'mount subdir' during mounting (similar to cifs_get_root ).

Isn't that going to be a problem for any clients which have restricted
filesystem access permissions? They may not be able to see all the
directories above their mount point.
-Greg