Messages in this thread | | | Subject | Re: [PATCH] Filesystem linking protections | From | Valdis.Kletnieks@vt ... | Date | Mon, 07 Feb 2005 14:14:37 -0500 |
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On Mon, 07 Feb 2005 19:57:06 +0100, Lorenzo =?ISO-8859-1?Q?Hern=E1ndez_?= =?ISO-8859-1?Q?Garc=EDa-Hierro?= said:
> This patch adds two checks to do_follow_link() and sys_link(), for > prevent users to follow (untrusted) symlinks owned by other users in > world-writable +t directories (i.e. /tmp), unless the owner of the > symlink is the owner of the directory, users will also not be able to > hardlink to files they do not own.
This should be done using the LSM framework. That's what it's *THERE* for. I've previously posted an LSM that does these checks (and a few others), it should be in the archives. [unhandled content-type:application/pgp-signature] | |