| From | Greg Kroah-Hartman <> | Subject | [ 35/72] drm/i915: restrict kernel address leak in debugfs | Date | Tue, 26 Mar 2013 15:51:18 -0700 |
| |
3.4-stable review patch. If anyone has any objections, please let me know.
------------------
From: Kees Cook <keescook@chromium.org>
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 | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- 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 t 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),
|