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avcodec/speedhq: Width < 8 is not supported

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Fixes: out of array access
Fixes: 31733/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_SPEEDHQ_fuzzer-4704307963363328
Fixes: 31736/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_SPEEDHQ_fuzzer-6190960292790272

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 462b8261aa3c4f9844b2e050c74b9a2018e3649d)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2021-03-17 13:14:39 +01:00
parent f7e195bdd3
commit 36ee2ff37a
1 changed files with 1 additions and 1 deletions
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2
libavcodec/speedhq.c
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@ -424,7 +424,7 @@ static int speedhq_decode_frame(AVCodecContext *avctx,
uint32_t second_field_offset;
int ret;
if (buf_size < 4)
if (buf_size < 4 || avctx->width < 8)
return AVERROR_INVALIDDATA;
quality = buf[0];