1 files changed, 3 insertions, 0 deletions

diff --git a/drivers/block/brd.c b/drivers/block/brd.c
index bae9a3d4e15b..e9a19d99f928 100644
--- a/drivers/block/brd.c
+++ b/drivers/block/brd.c
@@ -581,6 +581,9 @@ static int __init brd_init(void)
         if (max_part > 0)
                 part_shift = fls(max_part);
 
+        if ((1UL << part_shift) > DISK_MAX_PARTS)
+                return -EINVAL;
+
         if (rd_nr > 1UL << (MINORBITS - part_shift))
                 return -EINVAL;