1 files changed, 5 insertions, 0 deletions

diff --git a/drivers/md/dm-exception-store.c b/drivers/md/dm-exception-store.c
index 4c01c7535fb..556acff3952 100644
--- a/drivers/md/dm-exception-store.c
+++ b/drivers/md/dm-exception-store.c
@@ -191,6 +191,11 @@ int dm_exception_store_set_chunk_size(struct dm_exception_store *store,
                 return -EINVAL;
         }
 
+        if (chunk_size_ulong > INT_MAX >> SECTOR_SHIFT) {
+                *error = "Chunk size is too high";
+                return -EINVAL;
+        }
+
         store->chunk_size = chunk_size_ulong;
         store->chunk_mask = chunk_size_ulong - 1;
         store->chunk_shift = ffs(chunk_size_ulong) - 1;