}
}
/* check that all tags are present */
- if (w <= 0 || h <= 0 || maxval <= 0 || depth <= 0 || tuple_type[0] == '\0' || av_image_check_size(w, h, 0, avctx) || s->bytestream >= s->bytestream_end)
+ if (w <= 0 || h <= 0 || maxval <= 0 || maxval > UINT16_MAX || depth <= 0 || tuple_type[0] == '\0' ||
+ av_image_check_size(w, h, 0, avctx) || s->bytestream >= s->bytestream_end)
return AVERROR_INVALIDDATA;
avctx->width = w;
if (avctx->pix_fmt != AV_PIX_FMT_MONOWHITE && avctx->pix_fmt != AV_PIX_FMT_MONOBLACK) {
pnm_get(s, buf1, sizeof(buf1));
s->maxval = atoi(buf1);
- if (s->maxval <= 0) {
+ if (s->maxval <= 0 || s->maxval > UINT16_MAX) {
av_log(avctx, AV_LOG_ERROR, "Invalid maxval: %d\n", s->maxval);
s->maxval = 255;
}