linux-kernel - reading user. extended attributes from symlinks in 2.6 kernels

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

Message-ID: <20080211173809.4a2db13f@hermes-softlab.com>
Date:	Mon, 11 Feb 2008 17:38:09 +0100
From:	Rok Ruzic <rok.ruzic@...mes-softlab.com>
To:	linux-kernel@...r.kernel.org
Subject: reading user. extended attributes from symlinks in 2.6 kernels

Hello,

I have an XFS filesystem containing files and symlinks with application-specific EAs in the user namespace. The files, symlinks and their EAs were created while running a 2.4 kernel. 

In 2.6 kernels access to user EAs was prevented for symlinks. My problem is that i have to upgrade the kernel from 2.4 to 2.6 series and i have to have access to all the EAs after upgrade. Is there a way to read user EAs off of symlinks on an XFS filesystem on a 2.6 kernel either from userspace or from a filter driver sitting between VFS and XFS filesystem code?

I would appreciate it very much if somebody could point me towards a solution.

Rok

Download attachment "signature.asc" of type "application/pgp-signature" (190 bytes)