From: Kees Cook Date: Mon, 11 Mar 2013 19:25:19 +0000 (-0700) Subject: drm/i915: restrict kernel address leak in debugfs X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=2563a4524febe8f4a98e717e02436d1aaf672aa2;p=linux-beck.git 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 Cc: stable@vger.kernel.org Signed-off-by: Daniel Vetter --- 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),