[FFmpeg-devel] [PATCH 3/3] lavc/mvha: Check init_get_bits8() for failure

[Jun Zhao]

From: Jun Zhao <barryjzhao at tencent.com>

fix potential null pointer dereference

Signed-off-by: Jun Zhao <barryjzhao at tencent.com>
---
 libavcodec/mvha.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)

diff --git a/libavcodec/mvha.c b/libavcodec/mvha.c
index 636b5e6..4b03a79 100644
--- a/libavcodec/mvha.c
+++ b/libavcodec/mvha.c
@@ -190,7 +190,9 @@ static int decode_frame(AVCodecContext *avctx,
         GetBitContext *gb = &s->gb;
         int first_symbol, symbol;
 
-        init_get_bits8(gb, avpkt->data + 8, avpkt->size - 8);
+        ret = init_get_bits8(gb, avpkt->data + 8, avpkt->size - 8);
+        if (ret < 0)
+            return ret;
 
         skip_bits(gb, 24);
 
-- 
1.7.1