evaluate: mappings require set expression

While EXPR_CONCAT and EXPR_LIST share the same layout in struct expr,
these expressions are not possible at this stage.

Fall back to error out with "invalid mapping expression".

Fixes: 02d44b4f9917 ("evaluate: fix expression data corruption")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

diff --git a/src/evaluate.c b/src/evaluate.c
index a2d5d7c29514fa98e86ac805b1bc06840937a319..83381b4ef3d0891b1564f11bbfef3ffc2ef01320 100644 (file)
--- a/src/evaluate.c
+++ b/src/evaluate.c
@@ -2211,8 +2211,6 @@ static int expr_evaluate_map(struct eval_ctx *ctx, struct expr **expr)
        mappings = map->mappings;
 
        switch (map->mappings->etype) {
-       case EXPR_CONCAT:
-       case EXPR_LIST:
        case EXPR_SET:
                set_flags |= mappings->set_flags;
                /* fallthrough */