Messages in this thread |  | | Date | Thu, 4 Oct 2001 11:19:34 -0600 | From | Richard Gooch <> | Subject | Re: Security question: "Text file busy" overwriting executables but not shared libraries? |
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Andreas Schwab writes: > Richard Gooch <rgooch@ras.ucalgary.ca> writes: > > |> Linus Torvalds writes: > |> > > |> > On 4 Oct 2001, Eric W. Biederman wrote: > |> > > > |> > > First what user space really wants is the MAP_COPY. Which is > |> > > MAP_PRIVATE with the guarantee that they don't see anyone else's changes. > |> > > |> > Which is a completely idiotic idea, and which is only just another > |> > example of how absolutely and stunningly _stupid_ Hurd is. > |> > |> Indeed. If you're updated a shared library, why not *create a new > |> file* and then rename it?!? That lets running programmes work fine, > |> and new programmes will get the new library. Also, the following > |> construct makes a lot of sense: > |> ld -shared -o libfred.so *.o || mv libfred.so /usr/local/lib > > That || should be &&, otherwise you are doing exactly the opposite > of what you want.
Yeah. Of course. Brain fart. Fingers faster than brain syndrome...
Regards,
Richard.... Permanent: rgooch@atnf.csiro.au Current: rgooch@ras.ucalgary.ca - 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/
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