flexfax: faxgetty and internet simultaneously

Gert Doering (gert@greenie.muc.de)
Fri, 13 Aug 1999 08:01:42 +0200


Hi,

On Fri, Aug 13, 1999 at 07:02:16AM +0200, Mirek Kwasniak wrote:
> > > Kernel 2.2.10-ac12 (in Alan Cox series) gives us problem with sending faxes
> > > (faxspool don't work for differnt users). You need patch for ext2fs/inode.c
> > > (from kernel mailing list).
> > Huh.  Now this sounds like a real nasty bug in the kernel - faxspool
> > doesn't really do any "bad" or "nonportable" stuff...
> Yes, faxspool doesn't "nonportable" stuff, but writable (at least for group)
> /var/spool/fax/outgoing/.Sequence isn't proof solution, any can exploit it :(

Exploit it to do *what*?  On a Unix system, there are always ways to annoy
other people (corrupting .Sequence, filling up /tmp, allocating too much
memory and CPU), so what's the point?  You can't get root that way.

Anyway, I don't understand what this point has anything to do with Alan's
2.2.10-ac12 kernel and the required patch?

gert
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Gert Doering - Munich, Germany                             gert@greenie.muc.de
fax: +49-89-35655025                        gert.doering@physik.tu-muenchen.de