Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-sta...@libav.org
---
libavcodec/4xm.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/libavcodec/4xm.c b/libavcodec/4xm.c
index a4e6965..2c63eb1 100644
--- a/libavcodec/4xm.c
+++ b/libavcodec/4xm.c
@@ -807,6 +807,11 @@ static int decode_frame(AVCodecContext *avctx, void *data,
if (buf_size < 20)
return AVERROR_INVALIDDATA;
+ if (avctx->width % 16 || avctx->height % 16) {
+ av_log(avctx, AV_LOG_ERROR, "Dimensions non-multiple of 16\n");
+ return AVERROR_INVALIDDATA;
+ }
+
if (buf_size < AV_RL32(buf + 4) + 8) {
av_log(f->avctx, AV_LOG_ERROR, "size mismatch %d %d\n",
buf_size, AV_RL32(buf + 4));
--
1.8.2.1
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