vlc | branch: master | Francois Cartegnie <fcvlc...@free.fr> | Thu Oct 22 
15:30:10 2020 +0200| [41541125de479fdff0ed0dcd73a6bbc64e598727] | committer: 
Hugo Beauzée-Luyssen

demux: avi: fix invalid dereference

the stored track index might not match the one
at parsing time

Reported by: Zhen Zhou, NSFOCUS Security Team

Signed-off-by: Hugo Beauzée-Luyssen <h...@beauzee.fr>

> http://git.videolan.org/gitweb.cgi/vlc.git/?a=commit;h=41541125de479fdff0ed0dcd73a6bbc64e598727
---

 modules/demux/avi/avi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/modules/demux/avi/avi.c b/modules/demux/avi/avi.c
index 8edab47a62..9174b3167b 100644
--- a/modules/demux/avi/avi.c
+++ b/modules/demux/avi/avi.c
@@ -784,7 +784,7 @@ aviindex:
         {
             continue;
         }
-        p_strl = AVI_ChunkFind( p_hdrl, AVIFOURCC_strl, i, true );
+        p_strl = AVI_ChunkFind( p_hdrl, AVIFOURCC_strl, tk->fmt.i_id, true );
         p_auds = AVI_ChunkFind( p_strl, AVIFOURCC_strf, 0, false );
 
         if( p_auds &&

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