diff --git a/libavcodec/dxv.c b/libavcodec/dxv.c
index e28a6ba724..03e8270463 100644
--- a/libavcodec/dxv.c
+++ b/libavcodec/dxv.c
@@ -743,7 +743,7 @@ static int dxv_decompress_cocg(DXVContext *ctx, GetByteContext *gb,
     int skip0, skip1, oi0 = 0, oi1 = 0;
     int ret, state0 = 0, state1 = 0;
 
-    if (op_offset < 12)
+    if (op_offset < 12 || op_offset - 12 > bytestream2_get_bytes_left(gb))
         return AVERROR_INVALIDDATA;
 
     dst = tex_data;