[vlc-commits] [Git][videolan/vlc][master] demux: ts: fix possible divide by 0 at j2k parse

[Steve Lhomme (@robUx4)]

Steve Lhomme pushed to branch master at VideoLAN / VLC


Commits:
5ca90ea1 by Khalid Masum at 2025-10-14T05:42:07+00:00
demux: ts: fix possible divide by 0 at j2k parse

i_num, which comes from an untrusted source is used as a divisor in
vlc_tick_from_samples.

Fixes: #29369 (Coverity: 1666134)

- - - - -


1 changed file:

- modules/demux/mpeg/ts.c


Changes:

=====================================
modules/demux/mpeg/ts.c
=====================================
@@ -1350,7 +1350,7 @@ static block_t *J2K_Parse( demux_t *p_demux, block_t *p_block, bool b_interlaced
 
     uint16_t i_den = GetWBE( &p_buf[8] );
     uint16_t i_num = GetWBE( &p_buf[10] );
-    if( i_den == 0 )
+    if( i_den == 0 || i_num == 0 )
         goto invalid;
     p_block->i_length = vlc_tick_from_samples( i_den, i_num );
 



View it on GitLab: https://code.videolan.org/videolan/vlc/-/commit/5ca90ea1e906909a61c570d888ab203ac6d709e1

-- 
View it on GitLab: https://code.videolan.org/videolan/vlc/-/commit/5ca90ea1e906909a61c570d888ab203ac6d709e1
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