Re: Warning, cua2 opened, ...

Alan Cox (alan@lxorguk.ukuu.org.uk)
Mon, 16 Mar 1998 08:34:56 +0000 (GMT)

> to be on by default by the kernel at boot-up time --- and that wasn't an
> accident. (2) tcsetattr is one of the few ioctl's which is allowed
> after a hangup, so it will work anyway.

Ok thats the bit I needed to know. That means I can SIG_IGN sighup and
sort it.

> Yes, this is a potential security hole which a user who left a program
> running might possibly exploit, but there's little that user could do
> other than a denial of service attack, and there are plenty of ways of

That hole only exists because Linus needs to be fed the revoke() patch
again I think

> the device is directly connected, I have to ask why CLOCAL is getting
> cleared in the first place.

It may well not be. I can't guarantee what the port has been doing before
however.

Thanks a lot

Alan

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.rutgers.edu