mnl: do not use expr->identifier to fetch device name

This string might not be nul-terminated, resulting in spurious errors
when adding netdev chains.

Fixes: 3fdc7541fba0 ("src: add multidevice support for netdev chain")
Fixes: 92911b362e90 ("src: add support to add flowtables")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

1 files changed, 3 insertions, 3 deletions

diff --git a/src/parser_bison.y b/src/parser_bison.y
index ad512cdb..fd00b40a 100644
--- a/src/parser_bison.y
+++ b/src/parser_bison.y
@@ -1909,9 +1909,9 @@ flowtable_list_expr	:	flowtable_expr_member
 
 flowtable_expr_member	:	STRING
 			{
-				$$ = symbol_expr_alloc(&@$, SYMBOL_VALUE,
-						       current_scope(state),
-						       $1);
+				$$ = constant_expr_alloc(&@$, &string_type,
+							 BYTEORDER_HOST_ENDIAN,
+							 strlen($1) * BITS_PER_BYTE, $1);
 				xfree($1);
 			}
 			;