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-rw-r--r--libavcodec/h264.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/libavcodec/h264.c b/libavcodec/h264.c
index c0dfa3d638..7d49d4877d 100644
--- a/libavcodec/h264.c
+++ b/libavcodec/h264.c
@@ -4495,6 +4495,12 @@ static int execute_decode_slices(H264Context *h, int context_count)
H264Context *hx;
int i;
+ if (h->mb_y >= h->mb_height) {
+ av_log(h->avctx, AV_LOG_ERROR,
+ "Input contains more MB rows than the frame height.\n");
+ return AVERROR_INVALIDDATA;
+ }
+
if (h->avctx->hwaccel)
return 0;
if (context_count == 1) {