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| author | Michael Niedermayer <michael@niedermayer.cc> | 2021-04-19 16:20:55 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2021-05-12 23:00:07 +0200 |
| commit | 7a403da0cb8e5fe308fe307b7ed219110f7021e0 (patch) | |
| tree | 368c1f7a5ca0a57a77cadd16e23707847cc6888c /libavcodec/adpcm.c | |
| parent | 38c47615880357314ba30727a85bf7b00989706a (diff) | |
avcodec/adpcm: Set vqa_version before use in init
Fixes: null pointer dereference
Fixes: 33172/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_ADPCM_IMA_WS_fuzzer-5200164273913856
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Diffstat (limited to 'libavcodec/adpcm.c')
| -rw-r--r-- | libavcodec/adpcm.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/libavcodec/adpcm.c b/libavcodec/adpcm.c index 94e1fade28..5e0a654caf 100644 --- a/libavcodec/adpcm.c +++ b/libavcodec/adpcm.c @@ -193,6 +193,8 @@ static av_cold int adpcm_decode_init(AVCodecContext * avctx) avctx->sample_fmt = AV_SAMPLE_FMT_S16P; break; case AV_CODEC_ID_ADPCM_IMA_WS: + if (avctx->extradata && avctx->extradata_size >= 2) + c->vqa_version = AV_RL16(avctx->extradata); avctx->sample_fmt = c->vqa_version == 3 ? AV_SAMPLE_FMT_S16P : AV_SAMPLE_FMT_S16; break; |