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Groups > linux.kernel > #1539811
| From | Borislav Petkov <bp@suse.de> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH v2 2/2] x86/KASLR/64: Determine kernel text mapping size at runtime |
| Date | 2016-12-10 11:40 +0100 |
| Message-ID | <sMNeq-pA-39@gated-at.bofh.it> (permalink) |
| References | <sMuEN-4tz-5@gated-at.bofh.it> <sMuEN-4tz-9@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On Fri, Dec 09, 2016 at 10:41:58PM +0800, Baoquan He wrote:
> X86 64 kernel takes KERNEL_IMAGE_SIZE as the kernel text mapping size,
> and it's fixed as compiling time, changing from 512M to 1G as long as
> CONFIG_RANDOMIZE_BASE is enabled, though people specify kernel option
> "nokaslr" explicitly.
>
> This could be a wrong behaviour.
A bunch of changes just because "this could be a wrong behavior". I'm
not really persuaded.
--
Regards/Gruss,
Boris.
SUSE Linux GmbH, GF: Felix Imendörffer, Jane Smithard, Graham Norton, HRB 21284 (AG Nürnberg)
--
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[PATCH v2 0/2] Determine kernel text mapping size at runtime for x86_64 Baoquan He <bhe@redhat.com> - 2016-12-09 15:50 +0100
[PATCH v2 2/2] x86/KASLR/64: Determine kernel text mapping size at runtime Baoquan He <bhe@redhat.com> - 2016-12-09 15:50 +0100
Re: [PATCH v2 2/2] x86/KASLR/64: Determine kernel text mapping size at runtime Borislav Petkov <bp@suse.de> - 2016-12-10 11:40 +0100
Re: [PATCH v2 2/2] x86/KASLR/64: Determine kernel text mapping size at runtime Baoquan He <bhe@redhat.com> - 2016-12-10 13:30 +0100
Re: [PATCH v2 2/2] x86/KASLR/64: Determine kernel text mapping size at runtime Borislav Petkov <bp@suse.de> - 2016-12-10 13:40 +0100
Re: [PATCH v2 2/2] x86/KASLR/64: Determine kernel text mapping size at runtime Baoquan He <bhe@redhat.com> - 2016-12-10 14:50 +0100
Re: [PATCH v2 2/2] x86/KASLR/64: Determine kernel text mapping size at runtime Borislav Petkov <bp@suse.de> - 2016-12-10 17:30 +0100
Re: [PATCH v2 2/2] x86/KASLR/64: Determine kernel text mapping size at runtime Baoquan He <bhe@redhat.com> - 2016-12-11 12:00 +0100
Re: [PATCH v2 2/2] x86/KASLR/64: Determine kernel text mapping size at runtime Borislav Petkov <bp@suse.de> - 2016-12-11 13:10 +0100
Re: [PATCH v2 2/2] x86/KASLR/64: Determine kernel text mapping size at runtime Baoquan He <bhe@redhat.com> - 2016-12-12 03:40 +0100
[PATCH v2 1/2] x86/64: Make kernel text mapping always take one whole page table in early boot code Baoquan He <bhe@redhat.com> - 2016-12-09 15:50 +0100
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