Re: [kernel-hardening] Re: [PATCH v4] scripts: add leaking_addresses.pl

2017-11-12 Thread Kaiwan N Billimoria
On Mon, Nov 13, 2017 at 10:05 AM, Tobin C. Harding wrote: > On Mon, Nov 13, 2017 at 06:37:28AM +0300, Kirill A. Shutemov wrote: >> On Mon, Nov 13, 2017 at 10:06:46AM +1100, Tobin C. Harding wrote: >> > On Sun, Nov 12, 2017 at 02:10:07AM +0300, Kirill A. Shutemov wrote: ... >> > >>

Re: [PATCH v4] scripts: add leaking_addresses.pl

2017-11-12 Thread Tobin C. Harding
On Mon, Nov 13, 2017 at 06:37:28AM +0300, Kirill A. Shutemov wrote: > On Mon, Nov 13, 2017 at 10:06:46AM +1100, Tobin C. Harding wrote: > > On Sun, Nov 12, 2017 at 02:10:07AM +0300, Kirill A. Shutemov wrote: > > > On Tue, Nov 07, 2017 at 09:32:11PM +1100, Tobin C. Harding wrote: > > > > Currently

Re: [PATCH v4] scripts: add leaking_addresses.pl

2017-11-12 Thread Kirill A. Shutemov
On Mon, Nov 13, 2017 at 10:06:46AM +1100, Tobin C. Harding wrote: > On Sun, Nov 12, 2017 at 02:10:07AM +0300, Kirill A. Shutemov wrote: > > On Tue, Nov 07, 2017 at 09:32:11PM +1100, Tobin C. Harding wrote: > > > Currently we are leaking addresses from the kernel to user space. This > > > script is

Re: [PATCH v4] scripts: add leaking_addresses.pl

2017-11-12 Thread Tobin C. Harding
On Sun, Nov 12, 2017 at 02:10:07AM +0300, Kirill A. Shutemov wrote: > On Tue, Nov 07, 2017 at 09:32:11PM +1100, Tobin C. Harding wrote: > > Currently we are leaking addresses from the kernel to user space. This > > script is an attempt to find some of those leakages. Script parses > > `dmesg`

Re: [PATCH v4] scripts: add leaking_addresses.pl

2017-11-11 Thread Kirill A. Shutemov
On Tue, Nov 07, 2017 at 09:32:11PM +1100, Tobin C. Harding wrote: > Currently we are leaking addresses from the kernel to user space. This > script is an attempt to find some of those leakages. Script parses > `dmesg` output and /proc and /sys files for hex strings that look like > kernel

Re: [PATCH v4] scripts: add leaking_addresses.pl

2017-11-07 Thread Linus Torvalds
On Tue, Nov 7, 2017 at 12:58 PM, Tobin C. Harding wrote: > > Interesting idea. Isn't the same outcome already achieved with > dmesg_restrict. I appreciate that this does beg the question 'why are we > scanning dmesg then?' dmesg_restrict is even more asinine than kptr_restrict.

Re: [PATCH v4] scripts: add leaking_addresses.pl

2017-11-07 Thread Tobin C. Harding
On Tue, Nov 07, 2017 at 01:56:05PM +, David Laight wrote: > From: Tobin C. Harding > > Sent: 07 November 2017 10:32 > > > > Currently we are leaking addresses from the kernel to user space. This > > script is an attempt to find some of those leakages. Script parses > > `dmesg` output and /proc

Re: [PATCH v4] scripts: add leaking_addresses.pl

2017-11-07 Thread Tobin C. Harding
On Tue, Nov 07, 2017 at 11:50:27AM +0100, Greg KH wrote: > On Tue, Nov 07, 2017 at 09:32:11PM +1100, Tobin C. Harding wrote: > > Currently we are leaking addresses from the kernel to user space. This > > script is an attempt to find some of those leakages. Script parses > > `dmesg` output and

Re: [PATCH v4] scripts: add leaking_addresses.pl

2017-11-07 Thread Tobin C. Harding
On Tue, Nov 07, 2017 at 04:51:29PM +0100, Petr Mladek wrote: > On Tue 2017-11-07 21:32:11, Tobin C. Harding wrote: > > Currently we are leaking addresses from the kernel to user space. This > > script is an attempt to find some of those leakages. Script parses > > `dmesg` output and /proc and /sys

Re: [PATCH v4] scripts: add leaking_addresses.pl

2017-11-07 Thread Petr Mladek
On Tue 2017-11-07 21:32:11, Tobin C. Harding wrote: > Currently we are leaking addresses from the kernel to user space. This > script is an attempt to find some of those leakages. Script parses > `dmesg` output and /proc and /sys files for hex strings that look like > kernel addresses. > > Only

RE: [PATCH v4] scripts: add leaking_addresses.pl

2017-11-07 Thread David Laight
From: Tobin C. Harding > Sent: 07 November 2017 10:32 > > Currently we are leaking addresses from the kernel to user space. This > script is an attempt to find some of those leakages. Script parses > `dmesg` output and /proc and /sys files for hex strings that look like > kernel addresses. ...

Re: [PATCH v4] scripts: add leaking_addresses.pl

2017-11-07 Thread Greg KH
On Tue, Nov 07, 2017 at 09:32:11PM +1100, Tobin C. Harding wrote: > Currently we are leaking addresses from the kernel to user space. This > script is an attempt to find some of those leakages. Script parses > `dmesg` output and /proc and /sys files for hex strings that look like > kernel