return -1;
pnm_get(s, buf1, sizeof(buf1));
avctx->height = atoi(buf1);
- if(av_image_check_size(avctx->width, avctx->height, 0, avctx))
+ if(avctx->height <= 0 || av_image_check_size(avctx->width, avctx->height, 0, avctx))
return -1;
if (avctx->pix_fmt != PIX_FMT_MONOWHITE) {
pnm_get(s, buf1, sizeof(buf1));