[FFmpeg-devel] libavcodec/mpeg12dec.c: Check return value of init_get_bits

Thierry Foucu tfoucu at gmail.com
Tue Jul 20 01:16:28 EEST 2021


---
 libavcodec/mpeg12dec.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/libavcodec/mpeg12dec.c b/libavcodec/mpeg12dec.c
index b27ed5bd6d..edca202f0e 100644
--- a/libavcodec/mpeg12dec.c
+++ b/libavcodec/mpeg12dec.c
@@ -1341,8 +1341,11 @@ static int mpeg1_decode_picture(AVCodecContext *avctx, const uint8_t *buf,
     Mpeg1Context *s1  = avctx->priv_data;
     MpegEncContext *s = &s1->mpeg_enc_ctx;
     int ref, f_code, vbv_delay;
+    int ret = 0;
 
-    init_get_bits(&s->gb, buf, buf_size * 8);
+    ret = init_get_bits(&s->gb, buf, buf_size * 8);
+    if (ret < 0)
+        return ret;
 
     ref = get_bits(&s->gb, 10); /* temporal ref */
     s->pict_type = get_bits(&s->gb, 3);
-- 
2.32.0.402.g57bb445576-goog



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