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authorKees Cook <keescook@chromium.org>2013-03-11 12:25:19 -0700
committerDaniel Vetter <daniel.vetter@ffwll.ch>2013-03-13 21:31:02 +0100
commit2563a4524febe8f4a98e717e02436d1aaf672aa2 (patch)
treec53644549267616251aca9d5d669855b856d95de /drivers/gpu/drm
parentf6161aa153581da4a3867a2d1a7caf4be19b6ec9 (diff)
drm/i915: restrict kernel address leak in debugfs
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> Cc: stable@vger.kernel.org Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm')
-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 aae31489c893..7299ea45dd03 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -103,7 +103,7 @@ 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 %02x %02x %d %d %d%s%s%s",
+ seq_printf(m, "%pK: %s%s %8zdKiB %02x %02x %d %d %d%s%s%s",
&obj->base,
get_pin_flag(obj),
get_tiling_flag(obj),