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DEREF_OF_NULL.RET.STAT Return value of a function 'rbtree_create' is dereferenced at ipsecmod-whitelist.c:105 without checking for NULL, but it is usually checked for this function (5/6). In ipsecmod_whitelist_apply_cfg(), the return value of rbtree_create() is not checked for NULL before being used. Found by the static analyzer Svace (ISP RAS). Signed-off-by: Petr Vaganov <petrvaganoff@gmail.com>