Merge remote-tracking branches 'regulator/fix/88pm800', 'regulator/fix/max8973',...

[linux-drm-fsl-dcu.git] / security / selinux / ss / ebitmap.c

diff --git a/security/selinux/ss/ebitmap.c b/security/selinux/ss/ebitmap.c
index afe6a269ec177897d3a8851ae2e3cddf19688bce..57644b1dc42e1a38b5f1fd0d24ab75164b3bdbf1 100644 (file)
--- a/security/selinux/ss/ebitmap.c
+++ b/security/selinux/ss/ebitmap.c
@@ -153,6 +153,12 @@ int ebitmap_netlbl_import(struct ebitmap *ebmap,
                if (offset == (u32)-1)
                        return 0;
 
+               /* don't waste ebitmap space if the netlabel bitmap is empty */
+               if (bitmap == 0) {
+                       offset += EBITMAP_UNIT_SIZE;
+                       continue;
+               }
+
                if (e_iter == NULL ||
                    offset >= e_iter->startbit + EBITMAP_SIZE) {
                        e_prev = e_iter;