linux-kernel - Re: [PATCH 2/2] dax: fix bdev NULL pointer dereferences

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: <CAPcyv4hiipJ2Mm6KRD9u3cA8aCT95ioBRpCNxvujEAeG26PvvQ@mail.gmail.com>
Date:	Sun, 31 Jan 2016 11:51:23 -0800
From:	Dan Williams <dan.j.williams@...el.com>
To:	Matthew Wilcox <willy@...ux.intel.com>
Cc:	Ross Zwisler <zwisler@...il.com>,
	linux-nvdimm <linux-nvdimm@...1.01.org>,
	Dave Chinner <david@...morbit.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Christoph Hellwig <hch@...radead.org>,
	Alexander Viro <viro@...iv.linux.org.uk>,
	Jan Kara <jack@...e.com>,
	linux-fsdevel <linux-fsdevel@...r.kernel.org>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH 2/2] dax: fix bdev NULL pointer dereferences

On Sun, Jan 31, 2016 at 10:07 AM, Matthew Wilcox <willy@...ux.intel.com> wrote:
> One option that I've been looking at (primarily for x86-32) is
> having an rbtree of PFN ranges that drivers add to when they register
> peristent memory.

On this specific point we do already have find_dev_pagemap().