linux-kernel - Re: [PATCH 0/6][REPOST] ext{2,3,4}: tighten inheritance and setting of inode flags

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:	Wed, 03 Dec 2008 23:39:54 -0700
From:	Andreas Dilger <adilger@....com>
To:	Duane Griffin <duaneg@...da.com>
Cc:	akpm@...ux-foundation.org,
	"Aneesh Kumar K.V" <aneesh.kumar@...ux.vnet.ibm.com>,
	linux-ext4@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 0/6][REPOST] ext{2,3,4}: tighten inheritance and	setting of
 inode flags

On Dec 03, 2008  19:54 +0000, Duane Griffin wrote:
> This patch series prevents the inheritance and setting of flags that are
> inappropriate for specific inode types.
> 
> Flags which should be inherited are listed explicitly so as to prevent
> future flags being overlooked and inherited by accident.
> 
> It introduces a function to mask flags based on the inode type and uses
> it in inode creation and the SETFLAGS ioctl to help prevent future
> inconsistency.
> 
> Patches 1-3 fix the TOPDIR flag inheritance bug reported at
> http://bugzilla.kernel.org/show_bug.cgi?id=9866.
> 
> Patches 4-6 fix a related problem with non-regular file/dir inodes
> inheriting inappropriate flags, discovered while testing. For example,
> on an unpatched system, the following sequence will create an
> un(re)movable device node:

I worked with Duane during the development of these patches and agree
that they implement the proper solution to a problem that has repeated
a number of times as new flags are added.

Acked-by: Andreas Dilger <adilger@....com>

Cheers, Andreas
--
Andreas Dilger
Sr. Staff Engineer, Lustre Group
Sun Microsystems of Canada, Inc.

--
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/