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avcodec/binkaudio: Clear state on EAGAIN 

Its not supported to maintain a frame as receive_frame() argument
over multiple calls
Fixes: store to null pointer of type 'FFTSample' (aka 'float')
Fixes: 46231/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_BINKAUDIO_DCT_fuzzer-6276566037954560
Fixes: ACDC.smo

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2022-04-02 22:39:08 +02:00
parent 9274fb2532
commit b97e58da44
1 changed files with 3 additions and 1 deletions
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4
libavcodec/binkaudio.c
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@ -301,8 +301,10 @@ static int binkaudio_receive_frame(AVCodecContext *avctx, AVFrame *frame)
again:
if (!s->pkt->data) {
ret = ff_decode_get_packet(avctx, s->pkt);
if (ret < 0)
if (ret < 0) {
s->ch_offset = 0;
return ret;
}
if (s->pkt->size < 4) {
av_log(avctx, AV_LOG_ERROR, "Packet is too small\n");