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-rw-r--r--mm/page_alloc.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index d58df903150..bfbd95c0610 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -1401,6 +1401,9 @@ get_page_from_freelist(gfp_t gfp_mask, nodemask_t *nodemask, unsigned int order,
classzone_idx = zone_idx(preferred_zone);
+ if (WARN_ON_ONCE(order >= MAX_ORDER))
+ return NULL;
+
zonelist_scan:
/*
* Scan zonelist, looking for a zone with enough free.