Date: Thu, 8 Sep 2011 15:56:58 +0200 From: yersinia <yersinia.spiros@...il.com> To: owl-dev@...ts.openwall.com Subject: Re: /tmp fs type On Wed, Sep 7, 2011 at 11:36 AM, Solar Designer <solar@...nwall.com> wrote: > Vasiliy, > > On Wed, Sep 07, 2011 at 01:15:56PM +0400, Vasiliy Kulikov wrote: > > While we have an option to setup /tmp as tmpfs, > > This is more than just an option - this is the current default. And if > an admin overrides this default, then presumably they know what they're > doing. > > > we probably should > > support bind mounts for /tmp (and /home?) to deny creating links to sxid > > binaries: > > /tmp is already a separate filesystem. As to /home, maybe. But we're > planning to (re-)harden the kernel anyway, so why bother with partial > workarounds in userspace? Just in case someone runs Owl userland with a > non-Owl kernel? > > And what do you mean by "supporting" bind mounts? Aren't they already > supported (with a trivial edit to fstab)? Do you mean an installer > feature? If so, I see no reason to provide it if it's just for those > who would use a non-Owl kernel - that is, people who are willing to > customize the system on their own. > > Openwall support pam_namespace already ( http://www.coker.com.au/selinux/talks/sage-2006/PolyInstantiatedDirectories.html) ? It is not only for selinux system. Just for curiosity. Elia > Alexander > Content of type "text/html" skipped
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