Messages in this thread | | | Subject | Re: __init poisoning for i386, too | From | Andi Kleen <> | Date | 07 Oct 2004 13:28:08 +0200 |
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William Lee Irwin III <wli@holomorphy.com> writes:
> On Thu, Oct 07, 2004 at 12:18:55AM +0200, Pavel Machek wrote: > > Overwrite __init section so calls to __init functions from normal code > > are catched, reliably. I wonder if this should be configurable... but > > it is configurable on x86-64 so I copied it. Please apply, > > Any chance we could: > (a) set the stuff to 0x0f0b so illegal instructions come of it; jumps are > most often aligned to something > 16 bits anyway
0xcc is an int3, that already causes an oops.
> (b) poison __initdata, memsetting to some bit pattern oopsable to dereference
Would be a good idea yes. I will add it to x86-64.
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