Re: [PATCH] Allow /dev/{,k}mem to be disabled to prevent kernel from being modified easily

From: bert hubert (ahu@ds9a.nl)
Date: Sun Aug 03 2003 - 15:45:16 EST

Next message: John Bradford: "Re: issues with any ac sources, and 2.6"
Previous message: Gergely Nagy: "[TRIVIAL] compile fix for arch/ppc/kernel/setup.c"
In reply to: Andrew Morton: "Re: [PATCH] Allow /dev/{,k}mem to be disabled to prevent kernel from being modified easily"
Next in thread: Wichert Akkerman: "Re: [PATCH] Allow /dev/{,k}mem to be disabled to prevent kernel from being modified easily"
Reply: Wichert Akkerman: "Re: [PATCH] Allow /dev/{,k}mem to be disabled to prevent kernel from being modified easily"
Reply: Andrew Morton: "Re: [PATCH] Allow /dev/{,k}mem to be disabled to prevent kernel from being modified easily"
Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]

On Sun, Aug 03, 2003 at 12:32:18PM -0700, Andrew Morton wrote:
> bert hubert <ahu@ds9a.nl> wrote:
> >
> > +#if defined(CONFIG_MEMORY_ACCESS)
> > {1, "mem", S_IRUSR | S_IWUSR | S_IRGRP, &mem_fops},
> > {2, "kmem", S_IRUSR | S_IWUSR | S_IRGRP, &kmem_fops},
> > +#endif
>
> Well if you're going to do this, wouldn't it be better to force a segv and
> drop some messages in syslog?

problem with sigsegv is that it does not allow legitimate programs to choose
an alternate approach - the log entry would be nice though.

as one of the 'tastemasters', what are your thoughts on doing this
dynamically? The sigsegv option might be a dynamic option?

Thanks.

-- 
http://www.PowerDNS.com      Open source, database driven DNS Software 
http://lartc.org           Linux Advanced Routing & Traffic Control HOWTO
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Next message: John Bradford: "Re: issues with any ac sources, and 2.6"
Previous message: Gergely Nagy: "[TRIVIAL] compile fix for arch/ppc/kernel/setup.c"
In reply to: Andrew Morton: "Re: [PATCH] Allow /dev/{,k}mem to be disabled to prevent kernel from being modified easily"
Next in thread: Wichert Akkerman: "Re: [PATCH] Allow /dev/{,k}mem to be disabled to prevent kernel from being modified easily"
Reply: Wichert Akkerman: "Re: [PATCH] Allow /dev/{,k}mem to be disabled to prevent kernel from being modified easily"
Reply: Andrew Morton: "Re: [PATCH] Allow /dev/{,k}mem to be disabled to prevent kernel from being modified easily"
Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]

This archive was generated by hypermail 2b29 : Thu Aug 07 2003 - 22:00:22 EST