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rv20: validate slice start
[nihav.git]
/
nihav-realmedia
/
src
/
codecs
/
rv20.rs
diff --git
a/nihav-realmedia/src/codecs/rv20.rs
b/nihav-realmedia/src/codecs/rv20.rs
index 8e4965aa471fbc6698e2e1b137c32929af64f772..0e743969d306795bfe5ebeb4aaec9833229ca282 100644
(file)
--- a/
nihav-realmedia/src/codecs/rv20.rs
+++ b/
nihav-realmedia/src/codecs/rv20.rs
@@
-353,6
+353,7
@@
impl<'a> BlockDecoder for RealVideo20BR<'a> {
if self.slice_no < self.num_slices {
let pos = self.br.tell();
let shdr2 = self.read_slice_header()?;
+ validate!(shdr2.mb_pos > shdr.mb_pos);
mb_count = shdr2.mb_pos - shdr.mb_pos;
self.br.seek(pos as u32)?;
} else {