Fixes: index 26981 out of bounds for type 'ASFStreamData [128]' Fixes: 27334/clusterfuzz-testcase-minimized-ffmpeg_dem_ASF_O_fuzzer-6197611002068992
Alternatively the array could be increased in size or the cases not fitting be ignored Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> --- libavformat/asfdec_o.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/libavformat/asfdec_o.c b/libavformat/asfdec_o.c index 6ce5a3fb43..0a65850059 100644 --- a/libavformat/asfdec_o.c +++ b/libavformat/asfdec_o.c @@ -851,6 +851,8 @@ static int asf_read_ext_stream_properties(AVFormatContext *s, const GUIDParseTab st_num = avio_rl16(pb); st_num &= ASF_STREAM_NUM; lang_idx = avio_rl16(pb); // Stream Language ID Index + if (lang_idx >= ASF_MAX_STREAMS) + return AVERROR_INVALIDDATA; for (i = 0; i < asf->nb_streams; i++) { if (st_num == asf->asf_st[i]->stream_index) { st = s->streams[asf->asf_st[i]->index]; -- 2.17.1 _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
