Index: sys/fs/ext2fs/ext2_vfsops.c
===================================================================
--- sys/fs/ext2fs/ext2_vfsops.c
+++ sys/fs/ext2fs/ext2_vfsops.c
@@ -470,8 +470,12 @@
 		    fsbtodb(fs, cg_location(fs, i)),
 		    fs->e2fs_bsize, NOCRED, &bp);
 		if (error) {
-			free(fs->e2fs_contigdirs, M_EXT2MNT);
-			free(fs->e2fs_gd, M_EXT2MNT);
+			/*
+			 * The fs->e2fs_gd and fs->e2fs_contigdirs
+			 * will be freed later by the caller,
+			 * because this function could be called from
+			 * MNT_UPDATE path.
+			 */
 			brelse(bp);
 			return (error);
 		}