ffmpeg | branch: master | Michael Niedermayer <mich...@niedermayer.cc> | Sun Mar 1 22:30:00 2020 +0100| [ac73879f1bb27aa979a69bda24d1ca790e69f341] | committer: Michael Niedermayer
avcodec/adpcm: Clip step index for ADPCM_IMA_APM Fixes: out of array access Fixes: 20828/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_ADPCM_IMA_APM_fuzzer-5712770106654720 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Reviewed-by: Paul B Mahol <one...@gmail.com> Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=ac73879f1bb27aa979a69bda24d1ca790e69f341 --- libavcodec/adpcm.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/libavcodec/adpcm.c b/libavcodec/adpcm.c index b987e93c5f..5f152ee6ef 100644 --- a/libavcodec/adpcm.c +++ b/libavcodec/adpcm.c @@ -154,9 +154,9 @@ static av_cold int adpcm_decode_init(AVCodecContext * avctx) case AV_CODEC_ID_ADPCM_IMA_APM: if (avctx->extradata && avctx->extradata_size >= 16) { c->status[0].predictor = AV_RL32(avctx->extradata + 0); - c->status[0].step_index = AV_RL32(avctx->extradata + 4); + c->status[0].step_index = av_clip(AV_RL32(avctx->extradata + 4), 0, 88); c->status[1].predictor = AV_RL32(avctx->extradata + 8); - c->status[1].step_index = AV_RL32(avctx->extradata + 12); + c->status[1].step_index = av_clip(AV_RL32(avctx->extradata + 12), 0, 88); } break; case AV_CODEC_ID_ADPCM_IMA_WS: _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog To unsubscribe, visit link above, or email ffmpeg-cvslog-requ...@ffmpeg.org with subject "unsubscribe".
