Re: KASLR may break some kernel features (was Re: [PATCH v5 1/4] kaslr: add immovable_mem=nn[KMG]@ss[KMG] to specify extracting memory)

2018-01-30 Thread Baoquan He
Hi Kees, On 01/11/18 at 10:04am, Kees Cook wrote: > On Thu, Jan 11, 2018 at 1:00 AM, Baoquan He wrote: > > Hi Luiz, > > > > On 01/04/18 at 11:21am, Luiz Capitulino wrote: > >> Having a generic kaslr parameter to control where the kernel is extracted > >> is one solution for this problem. > >> > >

Re: KASLR may break some kernel features (was Re: [PATCH v5 1/4] kaslr: add immovable_mem=nn[KMG]@ss[KMG] to specify extracting memory)

2018-01-12 Thread Chao Fan
On Sat, Jan 13, 2018 at 12:02:26PM +0800, Baoquan He wrote: >On 01/12/18 at 01:52pm, Luiz Capitulino wrote: >> On Fri, 12 Jan 2018 10:47:53 +0800 >> Chao Fan wrote: >> >> > On Fri, Jan 12, 2018 at 10:31:52AM +0800, Baoquan He wrote: >> > >On 01/11/18 at 10:04am, Kees Cook wrote: >> > >> On Thu,

Re: KASLR may break some kernel features (was Re: [PATCH v5 1/4] kaslr: add immovable_mem=nn[KMG]@ss[KMG] to specify extracting memory)

2018-01-12 Thread Baoquan He
On 01/12/18 at 01:52pm, Luiz Capitulino wrote: > On Fri, 12 Jan 2018 10:47:53 +0800 > Chao Fan wrote: > > > On Fri, Jan 12, 2018 at 10:31:52AM +0800, Baoquan He wrote: > > >On 01/11/18 at 10:04am, Kees Cook wrote: > > >> On Thu, Jan 11, 2018 at 1:00 AM, Baoquan He wrote: > > >> > Hi Luiz, >

Re: KASLR may break some kernel features (was Re: [PATCH v5 1/4] kaslr: add immovable_mem=nn[KMG]@ss[KMG] to specify extracting memory)

2018-01-12 Thread Luiz Capitulino
On Fri, 12 Jan 2018 10:47:53 +0800 Chao Fan wrote: > On Fri, Jan 12, 2018 at 10:31:52AM +0800, Baoquan He wrote: > >On 01/11/18 at 10:04am, Kees Cook wrote: > >> On Thu, Jan 11, 2018 at 1:00 AM, Baoquan He wrote: > >> > Hi Luiz, > >> > > >> > On 01/04/18 at 11:21am, Luiz Capitulino wrote:

Re: KASLR may break some kernel features (was Re: [PATCH v5 1/4] kaslr: add immovable_mem=nn[KMG]@ss[KMG] to specify extracting memory)

2018-01-11 Thread Chao Fan
On Fri, Jan 12, 2018 at 10:31:52AM +0800, Baoquan He wrote: >On 01/11/18 at 10:04am, Kees Cook wrote: >> On Thu, Jan 11, 2018 at 1:00 AM, Baoquan He wrote: >> > Hi Luiz, >> > >> > On 01/04/18 at 11:21am, Luiz Capitulino wrote: >> >> Having a generic kaslr parameter to control where the kernel is e

Re: KASLR may break some kernel features (was Re: [PATCH v5 1/4] kaslr: add immovable_mem=nn[KMG]@ss[KMG] to specify extracting memory)

2018-01-11 Thread Baoquan He
On 01/11/18 at 10:04am, Kees Cook wrote: > On Thu, Jan 11, 2018 at 1:00 AM, Baoquan He wrote: > > Hi Luiz, > > > > On 01/04/18 at 11:21am, Luiz Capitulino wrote: > >> Having a generic kaslr parameter to control where the kernel is extracted > >> is one solution for this problem. > >> > >> The gene

Re: KASLR may break some kernel features (was Re: [PATCH v5 1/4] kaslr: add immovable_mem=nn[KMG]@ss[KMG] to specify extracting memory)

2018-01-11 Thread Chao Fan
On Thu, Jan 11, 2018 at 10:04:56AM -0800, Kees Cook wrote: >On Thu, Jan 11, 2018 at 1:00 AM, Baoquan He wrote: >> Hi Luiz, >> >> On 01/04/18 at 11:21am, Luiz Capitulino wrote: >>> Having a generic kaslr parameter to control where the kernel is extracted >>> is one solution for this problem. >>> >>

Re: KASLR may break some kernel features (was Re: [PATCH v5 1/4] kaslr: add immovable_mem=nn[KMG]@ss[KMG] to specify extracting memory)

2018-01-11 Thread Kees Cook
On Thu, Jan 11, 2018 at 1:00 AM, Baoquan He wrote: > Hi Luiz, > > On 01/04/18 at 11:21am, Luiz Capitulino wrote: >> Having a generic kaslr parameter to control where the kernel is extracted >> is one solution for this problem. >> >> The general problem statement is that KASLR may break some kernel

Re: KASLR may break some kernel features (was Re: [PATCH v5 1/4] kaslr: add immovable_mem=nn[KMG]@ss[KMG] to specify extracting memory)

2018-01-11 Thread Baoquan He
Hi Luiz, On 01/04/18 at 11:21am, Luiz Capitulino wrote: > Having a generic kaslr parameter to control where the kernel is extracted > is one solution for this problem. > > The general problem statement is that KASLR may break some kernel features > depending on where the kernel is extracted. Two