Messages in this thread | | | Subject | Re: [RFC] stack and heap are executable on x86_64 | From | "H. Peter Anvin" <> | Date | Thu, 20 Dec 2012 19:30:07 -0800 |
| |
Wtf...
Kees Cook <keescook@chromium.org> wrote:
>On Thu, Dec 20, 2012 at 7:00 PM, Kees Cook <keescook@chromium.org> >wrote: >> While trying to fix test_nx, I discovered that it looks like stack >and >> heap are executable again (at least on x86_64). :( I tried to bisect > >Btw, this ends up looking like this on v3.4: > >[ 2.486223] test_nx: Testing NX protection ... >[ 2.487468] test_nx: calling ffff88001dd57e45 (0xC3) >[ 2.488766] test_nx: stack is executable >[ 2.489802] test_nx: calling ffff88001e2c7580 (0xC3) >[ 2.491106] test_nx: heap is executable >[ 2.492086] test_nx: calling ffffffff81803c80 (0xC3) >[ 2.493201] test_nx: calling ffffffffa0002220 (0xC3) >[ 2.493843] test_nx: calling ffffffffa0001224 (0xC3) >[ 2.494549] test_nx: Done testing. > >-Kees > >-- >Kees Cook >Chrome OS Security
-- Sent from my mobile phone. Please excuse brevity and lack of formatting.
| |