diff options
| -rw-r--r-- | libavformat/pmpdec.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/libavformat/pmpdec.c b/libavformat/pmpdec.c index 1ee2e2e19a..06b2271f81 100644 --- a/libavformat/pmpdec.c +++ b/libavformat/pmpdec.c @@ -49,6 +49,8 @@ static int pmp_header(AVFormatContext *s) int srate, channels; int i; uint64_t pos; + int64_t fsize = avio_size(pb); + AVStream *vst = avformat_new_stream(s, NULL); if (!vst) return AVERROR(ENOMEM); @@ -100,8 +102,16 @@ static int pmp_header(AVFormatContext *s) return AVERROR_INVALIDDATA; } size >>= 1; + if (size < 9 + 4*pmp->num_streams) { + av_log(s, AV_LOG_ERROR, "Packet too small\n"); + return AVERROR_INVALIDDATA; + } av_add_index_entry(vst, pos, i, size, 0, flags); pos += size; + if (fsize > 0 && i == 0 && pos > fsize) { + av_log(s, AV_LOG_ERROR, "File ends before first packet\n"); + return AVERROR_INVALIDDATA; + } } for (i = 1; i < pmp->num_streams; i++) { AVStream *ast = avformat_new_stream(s, NULL); |