From de58acb176316f578a0b44a23a08b601f076ee54 Mon Sep 17 00:00:00 2001 From: Kent Overstreet Date: Fri, 23 Sep 2016 07:44:30 -0800 Subject: genradix: fix genradix_ptr() --- lib/generic-radix-tree.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/lib/generic-radix-tree.c b/lib/generic-radix-tree.c index e443a7b0040e..3f12a4c49abc 100644 --- a/lib/generic-radix-tree.c +++ b/lib/generic-radix-tree.c @@ -38,6 +38,9 @@ void *__genradix_ptr(struct __genradix *radix, size_t offset) size_t level = radix->depth; struct genradix_node *n = radix->root; + if (offset >= genradix_depth_size(radix->depth)) + return NULL; + while (1) { if (!n) return NULL; -- cgit v1.2.3