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avcodec/cri: Check length

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Fixes: CID1604394 Overflowed constant

Sponsored-by: Sovereign Tech Fund
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2024-07-05 02:21:43 +02:00
parent 96fd9417e2
commit 69dcd123f1
1 changed files with 4 additions and 0 deletions
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4
libavcodec/cri.c
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@ -234,10 +234,14 @@ static int cri_decode_frame(AVCodecContext *avctx, AVFrame *p,
s->data_size = length; s->data_size = length;
goto skip; goto skip;
case 105: case 105:
if (length <= 0)
return AVERROR_INVALIDDATA;
hflip = bytestream2_get_byte(gb) != 0; hflip = bytestream2_get_byte(gb) != 0;
length--; length--;
goto skip; goto skip;
case 106: case 106:
if (length <= 0)
return AVERROR_INVALIDDATA;
vflip = bytestream2_get_byte(gb) != 0; vflip = bytestream2_get_byte(gb) != 0;
length--; length--;
goto skip; goto skip;