fix: potential overflow in size check for stco

Eyevinn · Jan 15, 2025 · 484b6cf · 484b6cf
1 parent f0fbacb
commit 484b6cf
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/mp4/stco.go b/mp4/stco.go
@@ -62,7 +62,7 @@ func (b *StcoBox) Size() uint64 {
 
 // expectedSize - calculate size for a given entry count
 func (b *StcoBox) expectedSize(entryCount uint32) uint64 {
-	return uint64(boxHeaderSize + 8 + int(entryCount)*4) // 8 = version + flags(4) + entryCount(4), 4 bytes per offset
+	return uint64(boxHeaderSize + 8 + uint64(entryCount)*4) // 8 = version + flags(4) + entryCount(4), 4 bytes per offset
 }
 
 // Encode - write box to w