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avcodec/utvideodec: move allocation to the end of init 

Fixes: mem leak
Fixes: 62164/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_UTVIDEO_fuzzer-6666804266926080

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 2023-09-20 01:07:58 +02:00
parent 112a077d06
commit 53948d6200
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GPG Key ID: B18E8928B3948D64
1 changed files with 4 additions and 4 deletions
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8
libavcodec/utvideodec.c
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@ -1012,10 +1012,6 @@ static av_cold int decode_init(AVCodecContext *avctx)
return AVERROR_INVALIDDATA;
}
c->buffer = av_calloc(avctx->width + 8, c->pro?2:1);
if (!c->buffer)
return AVERROR(ENOMEM);
av_pix_fmt_get_chroma_sub_sample(avctx->pix_fmt, &h_shift, &v_shift);
if ((avctx->width & ((1<<h_shift)-1)) ||
(avctx->height & ((1<<v_shift)-1))) {
@ -1063,6 +1059,10 @@ static av_cold int decode_init(AVCodecContext *avctx)
return AVERROR_INVALIDDATA;
}
c->buffer = av_calloc(avctx->width + 8, c->pro?2:1);
if (!c->buffer)
return AVERROR(ENOMEM);
return 0;
}