* ioperm is kept on fork
@ 2015-06-16 16:42 Alex Henrie
2015-06-16 17:29 ` H. Peter Anvin
0 siblings, 1 reply; 2+ messages in thread
From: Alex Henrie @ 2015-06-16 16:42 UTC (permalink / raw)
To: One Thousand Gnomes, Kees Cook, Thomas Gleixner, Ingo Molnar,
Tyler Hicks, Al Viro, Andy Lutomirski, Andrew Morton,
Borislav Petkov, Peter Zijlstra, Arjan van de Ven,
Denys Vlasenko, Brian Gerst, Linux Kernel Mailing List,
Austin Hemmelgarn, Arjan van de Ven, H. Peter Anvin, Ingo Molnar
Hi,
Could one of you knowledgeable kernel developers comment on
https://bugzilla.kernel.org/show_bug.cgi?id=99911 ? The man pages
maintainer wants to know when this behavior changed.
-Alex
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: ioperm is kept on fork
2015-06-16 16:42 ioperm is kept on fork Alex Henrie
@ 2015-06-16 17:29 ` H. Peter Anvin
0 siblings, 0 replies; 2+ messages in thread
From: H. Peter Anvin @ 2015-06-16 17:29 UTC (permalink / raw)
To: Alex Henrie, One Thousand Gnomes, Kees Cook, Thomas Gleixner,
Ingo Molnar, Tyler Hicks, Al Viro, Andy Lutomirski,
Andrew Morton, Borislav Petkov, Peter Zijlstra, Arjan van de Ven,
Denys Vlasenko, Brian Gerst, Linux Kernel Mailing List,
Austin Hemmelgarn, Arjan van de Ven, Ingo Molnar
On 06/16/2015 09:42 AM, Alex Henrie wrote:
> Hi,
>
> Could one of you knowledgeable kernel developers comment on
> https://bugzilla.kernel.org/show_bug.cgi?id=99911 ? The man pages
> maintainer wants to know when this behavior changed.
>
I know that I wrote a program which required I/O privileges at some
point, and it called ioperm() in a setuid wrapper. This was in the late
90s. I suspect we'd have to do a bit of a deep dive to double-check;
the old ioperm() code which only supported the ISA port range to avoid
having to copy the bitmap might be good to look at.
-hpa
^ permalink raw reply [flat|nested] 2+ messages in thread
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