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avcodec/h264dec: Disable forced small_padding on flag2 fast

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Fixes: 20978/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_H264_fuzzer-5746381832847360

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 2020-05-28 14:33:58 +02:00
parent a317af2deb
commit 6b58eaac4d
1 changed files with 3 additions and 6 deletions
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9
libavcodec/h264.c
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@ -293,12 +293,9 @@ const uint8_t *ff_h264_decode_nal(H264Context *h, H264SliceContext *sl,
if(i>=length-1){ //no escaped 0
*dst_length= length;
*consumed= length+1; //+1 for the header
if(h->avctx->flags2 & AV_CODEC_FLAG2_FAST){
return src;
}else{
memcpy(dst, src, length);
return dst;
}
memcpy(dst, src, length);
return dst;
}
memcpy(dst, src, i);