diff options
| -rw-r--r-- | mm/memremap.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/mm/memremap.c b/mm/memremap.c index b0ce0d8254bd..a2d4bb88f64b 100644 --- a/mm/memremap.c +++ b/mm/memremap.c @@ -275,6 +275,9 @@ void *memremap_pages(struct dev_pagemap *pgmap, int nid) if (WARN_ONCE(!nr_range, "nr_range must be specified\n")) return ERR_PTR(-EINVAL); + if (WARN_ONCE(pgmap->vmemmap_shift > MAX_FOLIO_ORDER, + "requested folio size unsupported\n")) + return ERR_PTR(-EINVAL); switch (pgmap->type) { case MEMORY_DEVICE_PRIVATE: |