Minor headaches using pkgsrc daemons (samba)
joerg at britannica.bec.de
Tue Jul 12 11:22:25 PDT 2005
On Tue, Jul 12, 2005 at 07:49:10PM +0200, Simon 'corecode' Schubert wrote:
> Lately YONETANI Tomokazu <qhwt+dfly at xxxxxxxxxx> said:
> > This is very weird; if I add `return False' BEFORE FD_ZERO() in
> > open_sockets_smbd(), it terminates with SIGTERM, but if I put the
> > `return False' AFTER FD_ZERO() and stack smash protector detects
> > the stack overflow and it catches SIGABRT.
> okay, it seems that gcc with -fstack-protector (default) and -O2 places
> the variables wrongly on the stack. I can give more insight if desired.
> Basically listen_set is at -72(%ebp), whereas the canary is already at
> -40(%ebp). sizeoF(fd_set) == 128, so figure :)
> this regression should be pushed upstream. joerg, do you handle this?
I'm looking at the source of this.
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