linux-kernel - Re: [PATCH] Security/sysfs: Enable security xattrs to be set on sysfs files, directories, and symlinks.

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Message-ID: <4A69CB26.1070801@schaufler-ca.com>
Date:	Fri, 24 Jul 2009 07:54:30 -0700
From:	Casey Schaufler <casey@...aufler-ca.com>
To:	"David P. Quigley" <dpquigl@...ho.nsa.gov>
CC:	James Morris <jmorris@...ei.org>, sds@...ho.nsa.gov,
	Greg KH <greg@...ah.com>, ebiederm@...ssion.com,
	linux-kernel@...r.kernel.org,
	linux-security-module@...r.kernel.org, selinux@...ho.nsa.gov
Subject: Re: [PATCH] Security/sysfs: Enable security xattrs to be set on sysfs
 files, directories, and symlinks.

David P. Quigley wrote:
> On Fri, 2009-07-24 at 18:13 +1000, James Morris wrote:
>   
>> On Tue, 21 Jul 2009, David P. Quigley wrote:
>>
>>     
>>> Looking more closely at the problem I was mistaken. I was concerned with
>>> the dereferenceing of the dentry in the first line of the getxattr
>>> function but it seems that a precondition for us getting that far is
>>> that we will always have a valid dentry at that point. I'd appreciate it
>>> if the people whose code the patch touches can review the patch again
>>> and either NAK with more comments or sign off on it.
>>>       
>> Please repost them with a version number so we know exactly which patches 
>> we're looking at.
>>
>>
>>     
>
> Casey is taking a shot at implementing generic xattr support for in
> memory file systems.I told him I'd wait to see the initial cut of his
> patch before going further with this.
>
>   

Work is under way. I hope to be done in a few days. No big time chunks
available unfortunately.

> Dave
>
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>   
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