linux-kernel - Re: [PATCH RFC 0/1] mount: universally disallow mounting over symlinks

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Message-ID: <20200115143459.l4wurqyetkmptsdm@yavin>
Date:   Thu, 16 Jan 2020 01:34:59 +1100
From:   Aleksa Sarai <cyphar@...har.com>
To:     Al Viro <viro@...iv.linux.org.uk>
Cc:     Linus Torvalds <torvalds@...ux-foundation.org>,
        David Howells <dhowells@...hat.com>,
        Eric Biederman <ebiederm@...ssion.com>,
        stable <stable@...r.kernel.org>,
        Christian Brauner <christian.brauner@...ntu.com>,
        Serge Hallyn <serge@...lyn.com>, dev@...ncontainers.org,
        Linux Containers <containers@...ts.linux-foundation.org>,
        Linux API <linux-api@...r.kernel.org>,
        linux-fsdevel <linux-fsdevel@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Ian Kent <raven@...maw.net>
Subject: Re: [PATCH RFC 0/1] mount: universally disallow mounting over
 symlinks

On 2020-01-16, Aleksa Sarai <cyphar@...har.com> wrote:
> On 2020-01-15, Al Viro <viro@...iv.linux.org.uk> wrote:
> > On Wed, Jan 15, 2020 at 07:01:50AM +1100, Aleksa Sarai wrote:
> > 
> > > Yes, there were two patches I sent a while ago[1]. I can re-send them if
> > > you like. The second patch switches open_how->mode to a u64, but I'm
> > > still on the fence about whether that makes sense to do...
> > 
> > IMO plain __u64 is better than games with __aligned_u64 - all sizes are
> > fixed, so...
> > 
> > > [1]: https://lore.kernel.org/lkml/20191219105533.12508-1-cyphar@cyphar.com/
> > 
> > Do you want that series folded into "open: introduce openat2(2) syscall"
> > and "selftests: add openat2(2) selftests" or would you rather have them
> > appended at the end of the series.  Personally I'd go for "fold them in"
> > if it had been about my code, but it's really up to you.
> 
> "fold them in" would probably be better to avoid making the mainline
> history confusing afterwards. Thanks.

Also (if you prefer) I can send a v3 which uses u64s rather than
aligned_u64s.

-- 
Aleksa Sarai
Senior Software Engineer (Containers)
SUSE Linux GmbH
<https://www.cyphar.com/>

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