Messages in this thread | | | Date | Wed, 10 Jan 2007 09:58:45 -0600 | From | "Serge E. Hallyn" <> | Subject | Re: mprotect abuse in slim |
| |
Quoting Pekka J Enberg (penberg@cs.helsinki.fi): > On Tue, 9 Jan 2007, Serge E. Hallyn wrote: > > Whatever happened with Pekka's revoke submissions? Did you lose > > interest after > > http://www.kernel.org/pub/linux/kernel/people/penberg/patches/revoke/2.6.19-rc1/revoke-2.6.19-rc1, > > or was it decided that the approach was unworkable? > > Lack of time.
Ok great - then it's not dead :)
> Also, I would love to hear comments on the way I am doing > revoke on shared mappings. There are few open issues remaining, mainly, > supporting munmap(2) for revoked mappings.
Hmm, I wanted to test your revoke-munmap.c to see what you get right now with munmap, but a quick port of your patch to yesterdays -git on s390 gives me an oops on do_revoke. I'll have to straighten that out when I get a chance.
But since it looks like you just munmap the region now, shouldn't a subsequent munmap by the app just return -EINVAL? that seems appropriate to me.
thanks, -serge - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |