Re: [dm-devel] next-20180605 - kernel tried to execute NX-protected page - exploit attempt?

2018-06-08 Thread Jens Axboe
On 6/8/18 2:07 PM, valdis.kletni...@vt.edu wrote: > On Thu, 07 Jun 2018 18:41:35 -0400, valdis.kletni...@vt.edu said: >> On Thu, 07 Jun 2018 17:14:01 -0400, Mike Snitzer said: >>> Can you please share what you test is? We've gotten lots of reports >>> with failure following wake_up but I don't hav

Re: [dm-devel] next-20180605 - kernel tried to execute NX-protected page - exploit attempt?

2018-06-08 Thread valdis . kletnieks
On Thu, 07 Jun 2018 18:41:35 -0400, valdis.kletni...@vt.edu said: > On Thu, 07 Jun 2018 17:14:01 -0400, Mike Snitzer said: > > Can you please share what you test is? We've gotten lots of reports > > with failure following wake_up but I don't have a canned test to trigger > > Just a laptop with 16G

Re: [dm-devel] next-20180605 - kernel tried to execute NX-protected page - exploit attempt?

2018-06-07 Thread valdis . kletnieks
On Thu, 07 Jun 2018 17:14:01 -0400, Mike Snitzer said: > Can you please share what you test is? We've gotten lots of reports > with failure following wake_up but I don't have a canned test to trigger Just a laptop with 16G of RAM, no clear reproducer - Chrome with a lot of tabs, a mail reader, a

Re: [dm-devel] next-20180605 - kernel tried to execute NX-protected page - exploit attempt?

2018-06-07 Thread Mike Snitzer
On Thu, Jun 07 2018 at 4:40pm -0400, valdis.kletni...@vt.edu wrote: > I've hit this one twice today with pretty much the same traceback. > The disk has 3 partitions - one for EFI, one for /boot, and then the rest of > the disk is a cryptluks partition that contains a dozen or so LVM logical > vo

[dm-devel] next-20180605 - kernel tried to execute NX-protected page - exploit attempt?

2018-06-07 Thread valdis . kletnieks
I've hit this one twice today with pretty much the same traceback. The disk has 3 partitions - one for EFI, one for /boot, and then the rest of the disk is a cryptluks partition that contains a dozen or so LVM logical volumes. 'git log -- drivers/md' didn't show any obvious suspects since next-201