From bdc9bc5f487857f69d84e334a1bbd491c9d9b527 Mon Sep 17 00:00:00 2001 From: Keir Fraser Date: Mon, 13 Sep 2010 17:27:22 +0100 Subject: xsm: Avoid null dereference in flask get_page_sid From: Daniel De Graaf --- xen/xsm/flask/hooks.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/xen/xsm/flask/hooks.c b/xen/xsm/flask/hooks.c index b2bf4023f1..c58f8d71b6 100644 --- a/xen/xsm/flask/hooks.c +++ b/xen/xsm/flask/hooks.c @@ -340,7 +340,10 @@ static int get_page_sid(struct page_info *page, u32 *sid) default: /*Pages are implicitly labeled by domain ownership!*/ dsec = d->ssid; - *sid = dsec->sid; + if (dsec) + *sid = dsec->sid; + else + rc = -ENOENT; break; } -- cgit v1.2.3