mirrors/mp4-rust
1
0
Fork 0
mirror of https://github.com/alfg/mp4-rust.git synced 2024-06-02 13:39:54 +00:00
Code Issues Projects Releases Wiki Activity

Prevent possible subtraction underflow

Browse source
This commit is contained in:
Jensenn 2023-09-25 15:24:14 -06:00
parent fb694a602f
commit 85461b8272
1 changed files with 3 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

4
src/mp4box/senc.rs
View file

@ -103,7 +103,9 @@ impl<R: Read + Seek> ReadBox<&mut R> for SencBox {
// the senc box cannot be properly parsed without IV_size // the senc box cannot be properly parsed without IV_size
// which is only available from other boxes. Store the raw // which is only available from other boxes. Store the raw
// data for parsing with member functions later // data for parsing with member functions later
let data_size = start + size - reader.stream_position()?; let data_size = (start + size)
.checked_sub(reader.stream_position()?)
.ok_or(Error::InvalidData("senc size too small"))?;
let mut sample_data = vec![0; data_size as usize]; let mut sample_data = vec![0; data_size as usize];
reader.read_exact(&mut sample_data)?; reader.read_exact(&mut sample_data)?;