1 files changed, 3 insertions, 1 deletions

diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index f7ab34088162..8b24d3d42cb3 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -14,6 +14,7 @@
 #include <linux/log2.h>
 #include <linux/module.h>
 #include <linux/slab.h>
+#include <linux/nospec.h>
 #include <linux/backing-dev.h>
 #include <trace/events/ext4.h>
 
@@ -2140,7 +2141,8 @@ ext4_mb_regular_allocator(struct ext4_allocation_context *ac)
                  * This should tell if fe_len is exactly power of 2
                  */
                 if ((ac->ac_g_ex.fe_len & (~(1 << (i - 1)))) == 0)
-                        ac->ac_2order = i - 1;
+                        ac->ac_2order = array_index_nospec(i - 1,
+                                                           sb->s_blocksize_bits + 2);
         }
 
         /* if stream allocation is enabled, use global goal */