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demux_mkv: fix potential uninitialized variable read

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This commit is contained in:
wm4 2017-11-10 12:49:53 +01:00
parent 6bcdcaeeea
commit 618b8a33e5
1 changed files with 3 additions and 2 deletions
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5
demux/demux_mkv.c
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@ -2494,13 +2494,14 @@ static int read_block(demuxer_t *demuxer, int64_t end, struct block_info *block)
uint64_t num;
int16_t time;
uint64_t length;
int res = -1;
free_block(block);
length = ebml_read_length(s);
if (!length || length > 500000000 || stream_tell(s) + length > (uint64_t)end)
goto exit;
return -1;
uint64_t endpos = stream_tell(s) + length;
int res = -1;
// Parse header of the Block element
/* first byte(s): track num */