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Commit 2563a452 authored by Kees Cook's avatar Kees Cook Committed by Daniel Vetter
Browse files

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: default avatarKees Cook <keescook@chromium.org>
Cc: stable@vger.kernel.org
Signed-off-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
parent f6161aa1

drivers/gpu/drm/i915/i915_debugfs.c

+1 −1
Original line number Diff line number Diff line
@@ -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),