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avcodec/loco: Check loco_get_rice() for failure 

Fixes: CID1604495 Overflowed constant

Sponsored-by: Sovereign Tech Fund
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit d553276843)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2024-07-05 02:21:52 +02:00
parent 1a0f4df41b
commit deb5899fd1
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1 changed files with 2 additions and 0 deletions
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libavcodec/loco.c
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@ -156,6 +156,8 @@ static int loco_decode_plane(LOCOContext *l, uint8_t *data, int width, int heigh
/* restore top left pixel */ /* restore top left pixel */
val = loco_get_rice(&rc); val = loco_get_rice(&rc);
if (val == INT_MIN)
return AVERROR_INVALIDDATA;
data[0] = 128 + val; data[0] = 128 + val;
/* restore top line */ /* restore top line */
for (i = 1; i < width; i++) { for (i = 1; i < width; i++) {