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authorKees Cook <keescook@chromium.org>2013-03-11 12:25:19 -0700
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-03-28 12:12:05 -0700
commit74a523fb1759bd3afabf586740041e6d09d731c2 (patch)
treeada097002b7e7d5c9449744a010ddd8758bc05be
parentcb8a0948b8cc114aa7d4ff5e787f20d3a77ade0e (diff)
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>
-rw-r--r--drivers/gpu/drm/i915/i915_debugfs.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index e6162a1681f0..34791fb7aa78 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -122,7 +122,7 @@ static const char *cache_level_str(int type)
static void
describe_obj(struct seq_file *m, struct drm_i915_gem_object *obj)
{
- seq_printf(m, "%p: %s%s %8zdKiB %04x %04x %d %d%s%s%s",
+ seq_printf(m, "%pK: %s%s %8zdKiB %04x %04x %d %d%s%s%s",
&obj->base,
get_pin_flag(obj),
get_tiling_flag(obj),