[Fix] Do not reallocate completed zstd buffer

diff --git a/src/lua/lua_util.c b/src/lua/lua_util.c
index 064aa53f8797bf5734ffc6a18e271ee707f505ed..3ca34b4ccce2e90e13373cb59c6edf0e4d3a7f0a 100644 (file)
--- a/src/lua/lua_util.c
+++ b/src/lua/lua_util.c
@@ -1790,7 +1790,7 @@ lua_util_zstd_decompress (lua_State *L)
                        return 2;
                }
 
-               if (zout.pos == zout.size) {
+               if (zin.pos < zin.size && zout.pos == zout.size) {
                        /* We need to extend output buffer */
                        zout.size = zout.size * 1.5 + 1.0;
                        out = g_realloc (zout.dst, zout.size);