Commit 96f32549 authored by Rémi Denis-Courmont's avatar Rémi Denis-Courmont

dvdnav: ps_pkt_size() requires at least 6 bytes (fixes #4015)

The same check is already done in the dvdread, ps and vobsub modules.
(cherry picked from commit 8a497301)
parent ad68047e
......@@ -1130,17 +1130,17 @@ static int DemuxBlock( demux_t *p_demux, const uint8_t *pkt, int i_pkt )
demux_sys_t *p_sys = p_demux->p_sys;
const uint8_t *p = pkt;
while( p < &pkt[i_pkt] )
while( (p - pkt) <= (i_pkt - 6) )
{
/* ps_pkt_size() needs at least 6 bytes */
int i_size = ps_pkt_size( p, &pkt[i_pkt] - p );
block_t *p_pkt;
if( i_size <= 0 )
{
break;
}
/* Create a block */
p_pkt = block_New( p_demux, i_size );
block_t *p_pkt = block_New( p_demux, i_size );
memcpy( p_pkt->p_buffer, p, i_size);
/* Parse it and send it */
......
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