User-provided data should never trigger an assert; also fixes the warning:
libavcodec/vaapi_mpeg2.c:112:14: warning: variable 'start_code' set but not used
---
libavcodec/vaapi_mpeg2.c | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/libavcodec/vaapi_mpeg2.c b/libavcodec/vaapi_mpeg2.c
index 561f4bf..b162e33 100644
--- a/libavcodec/vaapi_mpeg2.c
+++ b/libavcodec/vaapi_mpeg2.c
@@ -116,7 +116,8 @@ static int vaapi_mpeg2_decode_slice(AVCodecContext *avctx,
const uint8_t *buffer
/* Determine macroblock_offset */
init_get_bits(&gb, buffer, 8 * size);
start_code = get_bits(&gb, 32);
- assert((start_code & 0xffffff00) == 0x00000100);
+ if ((start_code & 0xffffff00) == 0x00000100)
+ return -1;
quantiser_scale_code = get_bits(&gb, 5);
intra_slice_flag = get_bits1(&gb);
if (intra_slice_flag) {
--
1.7.1
_______________________________________________
libav-devel mailing list
[email protected]
https://lists.libav.org/mailman/listinfo/libav-devel
