[patch] drm: potential info leak in compat_drm_getclient()

Smatch has a new check for Rosenberg type information leaks where structs are copied to the user with uninitialized stack data in them.

The c32.idx member wasn't initialized.

Signed-off-by: Dan Carpenter dan.carpenter@oracle.com

diff --git a/drivers/gpu/drm/drm_ioc32.c b/drivers/gpu/drm/drm_ioc32.c index 4a058c7..050bd49 100644 --- a/drivers/gpu/drm/drm_ioc32.c +++ b/drivers/gpu/drm/drm_ioc32.c @@ -314,6 +314,7 @@ static int compat_drm_getclient(struct file *file, unsigned int cmd, if (err) return err;

+ c32.idx = idx; if (__get_user(c32.auth, &client->auth) || __get_user(c32.pid, &client->pid) || __get_user(c32.uid, &client->uid)