drm/i915: restrict kernel address leak in debugfs
authorKees Cook <keescook@chromium.org>
Mon, 11 Mar 2013 19:25:19 +0000 (12:25 -0700)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 28 Mar 2013 19:12:05 +0000 (12:12 -0700)
commit74a523fb1759bd3afabf586740041e6d09d731c2
treeada097002b7e7d5c9449744a010ddd8758bc05be
parentcb8a0948b8cc114aa7d4ff5e787f20d3a77ade0e
drm/i915: restrict kernel address leak in debugfs

commit 2563a4524febe8f4a98e717e02436d1aaf672aa2 upstream.

Masks kernel address info-leak in object dumps with the %pK suffix,
so they cannot be used to target kernel memory corruption attacks if
the kptr_restrict sysctl is set.

Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/gpu/drm/i915/i915_debugfs.c