idtree: fix overflow for v. large ids on allocation and removal

[sahlberg/ctdb.git] / lib / util / idtree.c

diff --git a/lib/util/idtree.c b/lib/util/idtree.c
index 05c22958bf739359cc0c6f69962b067198bc27ab..09dc237f83c2eaebdecbbdcbf5068e032282d10a 100644 (file)
--- a/lib/util/idtree.c
+++ b/lib/util/idtree.c
@@ -104,7 +104,7 @@ static int sub_alloc(struct idr_context *idp, void *ptr, int *starting_id)
 {
        int n, m, sh;
        struct idr_layer *p, *new;
-       struct idr_layer *pa[MAX_LEVEL];
+       struct idr_layer *pa[MAX_LEVEL+1];
        unsigned int l, id, oid;
        uint32_t bm;