On Fri, Mar 30, 2018 at 09:55:08AM +0200, Pavel Machek wrote:
> Hi!
>
> > Current implementation doesn't randomize address returned by mmap.
> > All the entropy ends with choosing mmap_base_addr at the process
> > creation. After that mmap build very predictable layout of address
> > space. It
> On 30 Mar 2018, at 12:57, Pavel Machek wrote:
>
> On Fri 2018-03-30 12:07:58, Ilya Smith wrote:
>> Hi
>>
>>> On 30 Mar 2018, at 10:55, Pavel Machek wrote:
>>>
>>> Hi!
>>>
Current implementation doesn't randomize address returned by mmap.
All the
On Fri 2018-03-30 12:07:58, Ilya Smith wrote:
> Hi
>
> > On 30 Mar 2018, at 10:55, Pavel Machek wrote:
> >
> > Hi!
> >
> >> Current implementation doesn't randomize address returned by mmap.
> >> All the entropy ends with choosing mmap_base_addr at the process
> >> creation.
Hi
> On 30 Mar 2018, at 10:55, Pavel Machek wrote:
>
> Hi!
>
>> Current implementation doesn't randomize address returned by mmap.
>> All the entropy ends with choosing mmap_base_addr at the process
>> creation. After that mmap build very predictable layout of address
>> space.
> On 27 Mar 2018, at 17:38, Michal Hocko wrote:
>
> On Tue 27-03-18 16:51:08, Ilya Smith wrote:
>>
>>> On 27 Mar 2018, at 10:24, Michal Hocko wrote:
>>>
>>> On Mon 26-03-18 22:45:31, Ilya Smith wrote:
> On 26 Mar 2018, at 11:46, Michal Hocko
On Tue, Mar 27, 2018 at 06:16:35PM -0400, Theodore Y. Ts'o wrote:
> On Tue, Mar 27, 2018 at 04:51:08PM +0300, Ilya Smith wrote:
> > > /dev/[u]random is not sufficient?
> >
> > Using /dev/[u]random makes 3 syscalls - open, read, close. This is a
> > performance
> > issue.
>
> You may want to
On Tue 27-03-18 16:51:08, Ilya Smith wrote:
>
> > On 27 Mar 2018, at 10:24, Michal Hocko wrote:
> >
> > On Mon 26-03-18 22:45:31, Ilya Smith wrote:
> >>
> >>> On 26 Mar 2018, at 11:46, Michal Hocko wrote:
> >>>
> >>> On Fri 23-03-18 20:55:49, Ilya Smith
On Mon 26-03-18 22:45:31, Ilya Smith wrote:
>
> > On 26 Mar 2018, at 11:46, Michal Hocko wrote:
> >
> > On Fri 23-03-18 20:55:49, Ilya Smith wrote:
> >>
> >>> On 23 Mar 2018, at 15:48, Matthew Wilcox wrote:
> >>>
> >>> On Thu, Mar 22, 2018 at
On Fri, Mar 23, 2018 at 12:29:52PM -0700, Matthew Wilcox wrote:
> On Fri, Mar 23, 2018 at 03:16:21PM -0400, Rich Felker wrote:
> > > Huh, I thought libc was aware of this. Also, I'd expect a libc-based
> > > implementation to restrict itself to, eg, only loading libraries in
> > > the bottom 1GB
On Fri, Mar 23, 2018 at 03:16:21PM -0400, Rich Felker wrote:
> > Huh, I thought libc was aware of this. Also, I'd expect a libc-based
> > implementation to restrict itself to, eg, only loading libraries in
> > the bottom 1GB to avoid applications who want to map huge things from
> > running out
On Fri, Mar 23, 2018 at 12:06:18PM -0700, Matthew Wilcox wrote:
> On Fri, Mar 23, 2018 at 02:00:24PM -0400, Rich Felker wrote:
> > On Fri, Mar 23, 2018 at 05:48:06AM -0700, Matthew Wilcox wrote:
> > > On Thu, Mar 22, 2018 at 07:36:36PM +0300, Ilya Smith wrote:
> > > > Current implementation
On Fri, Mar 23, 2018 at 02:00:24PM -0400, Rich Felker wrote:
> On Fri, Mar 23, 2018 at 05:48:06AM -0700, Matthew Wilcox wrote:
> > On Thu, Mar 22, 2018 at 07:36:36PM +0300, Ilya Smith wrote:
> > > Current implementation doesn't randomize address returned by mmap.
> > > All the entropy ends with
On Fri, Mar 23, 2018 at 05:48:06AM -0700, Matthew Wilcox wrote:
> On Thu, Mar 22, 2018 at 07:36:36PM +0300, Ilya Smith wrote:
> > Current implementation doesn't randomize address returned by mmap.
> > All the entropy ends with choosing mmap_base_addr at the process
> > creation. After that mmap
Hello, Andrew
Thanks for reading this patch.
> On 22 Mar 2018, at 23:57, Andrew Morton wrote:
>
> On Thu, 22 Mar 2018 19:36:36 +0300 Ilya Smith wrote:
>
>> Current implementation doesn't randomize address returned by mmap.
>> All the entropy
On Thu, 22 Mar 2018 19:36:36 +0300 Ilya Smith wrote:
> Current implementation doesn't randomize address returned by mmap.
> All the entropy ends with choosing mmap_base_addr at the process
> creation. After that mmap build very predictable layout of address
> space. It
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