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-rw-r--r--libavcodec/atrac9dec.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/libavcodec/atrac9dec.c b/libavcodec/atrac9dec.c
index 4ea6ff0f31..46e60ca998 100644
--- a/libavcodec/atrac9dec.c
+++ b/libavcodec/atrac9dec.c
@@ -839,6 +839,11 @@ static av_cold int atrac9_decode_init(AVCodecContext *avctx)
av_lfg_init(&s->lfg, 0xFBADF00D);
+ if (avctx->block_align <= 0) {
+ av_log(avctx, AV_LOG_ERROR, "Invalid block align\n");
+ return AVERROR_INVALIDDATA;
+ }
+
if (avctx->extradata_size != 12) {
av_log(avctx, AV_LOG_ERROR, "Invalid extradata length!\n");
return AVERROR_INVALIDDATA;