diff options
| -rw-r--r-- | libavcodec/paf.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/libavcodec/paf.c b/libavcodec/paf.c index 8b3c46f66b..1c3e8b8fcd 100644 --- a/libavcodec/paf.c +++ b/libavcodec/paf.c @@ -164,14 +164,16 @@ static int decode_0(AVCodecContext *avctx, uint8_t code, uint8_t *pkt) } while (--i); } - dst = c->frame[c->current_frame]; + dst = c->frame[c->current_frame]; + dend = c->frame[c->current_frame] + c->frame_size; do { a = bytestream2_get_byte(&c->gb); b = bytestream2_get_byte(&c->gb); p = (a & 0xC0) >> 6; src = c->frame[p] + get_video_page_offset(avctx, a, b); send = c->frame[p] + c->frame_size; - if (src + 3 * avctx->width + 4 > send) + if ((src + 3 * avctx->width + 4 > send) || + (dst + 3 * avctx->width + 4 > dend)) return AVERROR_INVALIDDATA; copy_block4(dst, src, avctx->width, avctx->width, 4); i++; |