diff options
Diffstat (limited to 'libavformat/matroskadec.c')
| -rw-r--r-- | libavformat/matroskadec.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/libavformat/matroskadec.c b/libavformat/matroskadec.c index 7dac7beb99..93cd4bbb1c 100644 --- a/libavformat/matroskadec.c +++ b/libavformat/matroskadec.c @@ -1827,8 +1827,12 @@ static int matroska_read_header(AVFormatContext *s) matroska->ctx = s; /* First read the EBML header. */ - if (ebml_parse(matroska, ebml_syntax, &ebml) || - ebml.version > EBML_VERSION || + if (ebml_parse(matroska, ebml_syntax, &ebml) || !ebml.doctype) { + av_log(matroska->ctx, AV_LOG_ERROR, "EBML header parsing failed\n"); + ebml_free(ebml_syntax, &ebml); + return AVERROR_INVALIDDATA; + } + if (ebml.version > EBML_VERSION || ebml.max_size > sizeof(uint64_t) || ebml.id_length > sizeof(uint32_t) || ebml.doctype_version > 3) { |