1 files changed, 4 insertions, 2 deletions

diff --git a/fs/ext4/resize.c b/fs/ext4/resize.c
index 9f086a6a472b..9ff7b1c04239 100644
--- a/fs/ext4/resize.c
+++ b/fs/ext4/resize.c
@@ -563,7 +563,8 @@ static int reserve_backup_gdb(handle_t *handle, struct inode *inode,
         }
 
         blk = EXT4_SB(sb)->s_sbh->b_blocknr + 1 + EXT4_SB(sb)->s_gdb_count;
-        data = (__le32 *)dind->b_data + EXT4_SB(sb)->s_gdb_count;
+        data = (__le32 *)dind->b_data + (EXT4_SB(sb)->s_gdb_count %
+                                         EXT4_ADDR_PER_BLOCK(sb));
         end = (__le32 *)dind->b_data + EXT4_ADDR_PER_BLOCK(sb);
 
         /* Get each reserved primary GDT block and verify it holds backups */
@@ -854,7 +855,8 @@ int ext4_group_add(struct super_block *sb, struct ext4_new_group_data *input)
          */
 
         /* Update group descriptor block for new group */
-        gdp = (struct ext4_group_desc *)primary->b_data + gdb_off;
+        gdp = (struct ext4_group_desc *)((char *)primary->b_data +
+                                         gdb_off * EXT4_DESC_SIZE(sb));
 
         ext4_block_bitmap_set(sb, gdp, input->block_bitmap); /* LV FIXME */
         ext4_inode_bitmap_set(sb, gdp, input->inode_bitmap); /* LV FIXME */