Subject: Re: port-mips/26410: fp.S not updated for siginfo
To: Matthew Orgass <>
From: Simon Burge <>
List: netbsd-bugs
Date: 07/23/2004 14:13:09
Hi Matthew,

Matthew Orgass wrote:

> >Number:         26410
> >Category:       port-mips
> >Synopsis:       fp.S not updated for siginfo
> >Confidential:   no
> >Severity:       critical
> >Priority:       high

>   The arch/mips/mips/fp.S file has not been updated for siginfo.  I
> believe this means it is possible for an unpriviledged user to induce a
> kernel TLB miss on any MIPS CPU.  Also, I think e_trapsignal should be
> called by this code, not trapsignal directly.
> >How-To-Repeat:
>   I triggered this cancelling a ftp transfer on a softfloat machine,
> possibly assisted by a different problem I am investigating.
> >Fix:
>    I think the right thing to do would be to pass the info to a C function
> in trap.c that sets up the ksi and calls e_trapsignal.

Is this easily reproducable?  If so, can you see if the patches in

from Matthias Drochner fixes your problem?

Simon Burge                            <>
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