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typefindfunctions: Bail out on huge EBML chunks

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We can't handle/store more than guint32 anyway
This commit is contained in:
Edward Hervey 2018-07-06 13:48:09 +02:00 committed by Edward Hervey
parent 38ba954e82
commit 2657fc1fdd
1 changed files with 5 additions and 0 deletions
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5
gst/typefind/gsttypefindfunctions.c
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@ -4388,6 +4388,11 @@ ebml_parse_chunk (GstTypeFind * tf, DataScanCtx * ctx, guint32 chunk_id,
SPACES + sizeof (SPACES) - 1 - (2 * depth), id, element_size,
hdr_len + element_size);
if (element_size >= G_MAXUINT32) {
GST_DEBUG ("Chunk too big for typefinding");
return FALSE;
}
if (!data_scan_ctx_ensure_data (tf, &c, element_size)) {
GST_DEBUG ("not enough data");
return FALSE;