linux-kernel - Re: [PATCH v2 1/2] vfs: block chmod of symlinks

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 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Date:   Tue, 29 Sep 2020 18:49:42 +0100
From:   Christoph Hellwig <hch@...radead.org>
To:     Al Viro <viro@...iv.linux.org.uk>
Cc:     Christoph Hellwig <hch@...radead.org>,
        Rich Felker <dalias@...c.org>, linux-api@...r.kernel.org,
        linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 1/2] vfs: block chmod of symlinks

On Thu, Sep 17, 2020 at 05:15:03AM +0100, Al Viro wrote:
> Arrgh...  That'd break shmem and similar filesystems...  Still, it
> feels like we should _not_ bother in cases when there's no ACL
> for that sucker; after all, if get_acl() returns NULL, we quietly
> return 0 and that's it.
> 
> How about something like this instead?

Do you plan to turn this into a submission?

Rich, can you share your original reproducer?  I would be really
helpful to have it wired up in xfstests as a regression tests.