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avcodec/cfhdenc: Clear dwt_tmp

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This occurs on a 32x32 input

Fixes: use of uninitialized value
Fixes: 70897/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_CFHD_fuzzer-5960860961406976

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 9de721de70)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2024-08-07 22:55:03 +02:00
parent 0da3deb079
commit f44a7207f0
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1 changed files with 1 additions and 1 deletions
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libavcodec/cfhdenc.c
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@ -285,7 +285,7 @@ static av_cold int cfhd_encode_init(AVCodecContext *avctx)
s->plane[i].dwt_buf =
av_calloc(h8 * 8 * w8 * 8, sizeof(*s->plane[i].dwt_buf));
s->plane[i].dwt_tmp =
av_malloc_array(h8 * 8 * w8 * 8, sizeof(*s->plane[i].dwt_tmp));
av_calloc(h8 * 8 * w8 * 8, sizeof(*s->plane[i].dwt_tmp));
if (!s->plane[i].dwt_buf || !s->plane[i].dwt_tmp)
return AVERROR(ENOMEM);