linux-kernel - Re: [PATCH] hfsplus: Remove hfsplus_file

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

Message-ID: <20131211191153.GZ10323@ZenIV.linux.org.uk>
Date:	Wed, 11 Dec 2013 19:11:53 +0000
From:	Al Viro <viro@...IV.linux.org.uk>
To:	Vyacheslav Dubeyko <slava@...eyko.com>
Cc:	sougata@...era.com, hch@...radead.org,
	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
	dri-devel@...ts.freedesktop.org,
	Szabolcs Szakacsits <szaka@...era.com>
Subject: Re: [PATCH] hfsplus: Remove hfsplus_file_lookup

On Wed, Dec 11, 2013 at 10:49:29PM +0300, Vyacheslav Dubeyko wrote:

> This feature worked earlier under Linux. So, I suppose that some changes in HFS+ driver
> or in VFS broke it. And it needs to investigate and fix the reported issue. Thank you for the
> report.

This "feature" is severely broken and yes, outright removal is what I'd
suggest for a fix.  HFS+ allows hardlinks to files, which means that
you allow multiple dentries for the same inode with ->lookup() in it,
which is asking for deadlocks.

This is fundamentally not supported.  Considering that forks are lousy
idea in the first place, I'd seriously suggest to remove that idiocy for
good.
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/