reverted back to checked_sub with adjusted castings

programs/mpl-hybrid/src/instructions/update_escrow.rs

@@ -74,12 +74,18 @@ pub fn handler_update_escrow_v1(
     escrow.authority = authority.key();
     escrow.token = token.key();
     escrow.fee_location = fee_location.key();
+
     if let Some(name) = ix.name {
-        size_diff += name.len() as isize - escrow.name.len() as isize;
+        size_diff += (name.len() as isize)
+            .checked_sub(escrow.name.len() as isize)
+            .ok_or(MplHybridError::NumericalOverflow)?;
         escrow.name = name;
     }
+
     if let Some(uri) = ix.uri {
-        size_diff += uri.len() as isize - escrow.uri.len() as isize;
+        size_diff += (uri.len() as isize)
+            .checked_sub(escrow.uri.len() as isize)
+            .ok_or(MplHybridError::NumericalOverflow)?;
         escrow.uri = uri;
     }
     if let Some(max) = ix.max {
@@ -101,8 +107,9 @@ pub fn handler_update_escrow_v1(
         escrow.path = path;
     }
 
-    let new_size: isize = escrow.to_account_info().data_len() as isize + size_diff;
-
+    let new_size = (escrow.to_account_info().data_len() as isize)
+        .checked_add(size_diff)
+        .ok_or(MplHybridError::NumericalOverflow)?;
     resize_or_reallocate_account_raw(
         &escrow.to_account_info(),
         authority,