diff options
Diffstat (limited to 'libavcodec')
| -rw-r--r-- | libavcodec/pngdec.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/libavcodec/pngdec.c b/libavcodec/pngdec.c index ee6a2baf9d..f80a3fe9d7 100644 --- a/libavcodec/pngdec.c +++ b/libavcodec/pngdec.c @@ -524,6 +524,12 @@ static int decode_ihdr_chunk(AVCodecContext *avctx, PNGDecContext *s, { if (length != 13) return AVERROR_INVALIDDATA; + + if (s->state & PNG_IDAT) { + av_log(avctx, AV_LOG_ERROR, "IHDR after IDAT\n"); + return AVERROR_INVALIDDATA; + } + s->width = bytestream2_get_be32(&s->gb); s->height = bytestream2_get_be32(&s->gb); if (av_image_check_size(s->width, s->height, 0, avctx)) { |