Date: Mon, 23 Jul 2001 22:40:41 -0700 From: Dima Dorfman <dima@unixfreak.org> To: Alfred Perlstein <bright@sneakerz.org> Cc: rootx11@xfreek.mindriot.net, freebsd-hackers@freebsd.org Subject: Re: your mail Message-ID: <20010724054041.485343E32@bazooka.unixfreak.org> In-Reply-To: <20010723201232.A68587@sneakerz.org>; from bright@sneakerz.org on "Mon, 23 Jul 2001 20:12:32 -0500"
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Alfred Perlstein <bright@sneakerz.org> writes:
> * rootx11@xfreek.mindriot.net <rootx11@xfreek.mindriot.net> [010723 19:47] wr
> ote:
> > Hello
> > I am experimenting with kernel modules and am trying to write to a file.
> > This is the syscall function (sorry of my terminology is messed up)
> >
> > static int write_file(struct proc *p, void *arg) {
> > struct write_args *wstructure;
> > struct open_args *ostructure;
Notice how you (the originator) never allocated memory for these
structures, so this assignment:
> > ostructure->path="/tmp/blehfile";
dereferences junk on the stack. Once you've fixed that, of course,
you'll have to fix all the issues Alfred and Andrew told you about.
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