Re: Security issues with local filesystem caching

[Alan Cox]

Ar Iau, 2006-10-26 am 01:32 +0100, ysgrifennodd Al Viro:
> to.  What about access to cache tree by root process that has nothing
> to do with that daemon?  Should it get free access to that stuff, regardless
> of what policy might say about access to cached files?  Or should we at
> least try to make sure that we have the instances in cache no more permissive
> than originals on NFS?

This is already the case however. Root has ptrace, people have /proc
access (even more than before because the chroot check was broken
recently), root has CAP_SYS_RAWIO.


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