Signed-off-by: Andreas Rheinhardt <andreas.rheinha...@outlook.com>
---
libavcodec/movtextenc.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/libavcodec/movtextenc.c b/libavcodec/movtextenc.c
index 46109e0a5e..eecadaf503 100644
--- a/libavcodec/movtextenc.c
+++ b/libavcodec/movtextenc.c
@@ -667,6 +667,8 @@ static int mov_text_encode_frame(AVCodecContext *avctx,
unsigned char *buf,
}
}
+ if (s->byte_count > UINT16_MAX)
+ return AVERROR(ERANGE);
AV_WB16(buf, s->byte_count);
buf += 2;
--
2.32.0
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