avcodec/scpr3: add missing check for decode_value3() return value

Fixes ticket #7866. Signed-off-by: James Almer <jamrial@gmail.com>
2019-04-26 12:31:19 -03:00 · 2019-04-26 12:31:19 -03:00 · 938cb783d4
parent 163bb087f8
commit 938cb783d4
1 changed files with 3 additions and 0 deletions
--- a/libavcodec/scpr3.c
+++ b/libavcodec/scpr3.c
@ -1038,6 +1038,9 @@ static int decompress_p3(AVCodecContext *avctx,
                         s->range_model3.freqs[1],
                         s->range_model3.cnts,
                         s->range_model3.dectab, &temp);
+    if (ret < 0)
+        return ret;
+
    min += temp << 8;
    ret |= decode_value3(s, 255, &s->range_model3.cntsum,
                         s->range_model3.freqs[0],