Fixes: Infinite loop Fixes: 18914/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_WMAVOICE_fuzzer-5731902946541568
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> --- libavcodec/wmavoice.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/libavcodec/wmavoice.c b/libavcodec/wmavoice.c index 4c147fe04f..afd6b32780 100644 --- a/libavcodec/wmavoice.c +++ b/libavcodec/wmavoice.c @@ -1843,6 +1843,9 @@ static int parse_packet_header(WMAVoiceContext *s) skip_bits(gb, 4); // packet sequence number s->has_residual_lsps = get_bits1(gb); do { + if (get_bits_left(gb) < 6 + s->spillover_bitsize) + return AVERROR_INVALIDDATA; + res = get_bits(gb, 6); // number of superframes per packet // (minus first one if there is spillover) n_superframes += res; -- 2.23.0 _______________________________________________ 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".
