diff options
| -rw-r--r-- | libavcodec/dxa.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/libavcodec/dxa.c b/libavcodec/dxa.c index b2f9b81121..d30bfb2702 100644 --- a/libavcodec/dxa.c +++ b/libavcodec/dxa.c @@ -133,6 +133,11 @@ static int decode_13(AVCodecContext *avctx, DxaDecContext *c, uint8_t* dst, case 0x80: // motion compensation x = (*mv) >> 4; if(x & 8) x = 8 - x; y = (*mv++) & 0xF; if(y & 8) y = 8 - y; + if (i + 2*(k & 1) < -x || avctx->width - i - 2*(k & 1) - 2 < x || + j + (k & 2) < -y || avctx->height - j - (k & 2) - 2 < y) { + av_log(avctx, AV_LOG_ERROR, "MV %d %d out of bounds\n", x,y); + return AVERROR_INVALIDDATA; + } tmp2 += x + y*stride; case 0x00: // skip tmp[d + 0 ] = tmp2[0]; |