[libnftables PATCH 04/21] bitwise: xml: mask and xor use same number of data registers

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The mask and xor must use the same number of data registers.

Signed-off-by: Arturo Borrero Gonzalez <arturo.borrero.glez@xxxxxxxxx>
---
 src/expr/bitwise.c |   10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/src/expr/bitwise.c b/src/expr/bitwise.c
index fa2fc5a..6932086 100644
--- a/src/expr/bitwise.c
+++ b/src/expr/bitwise.c
@@ -298,6 +298,16 @@ nft_rule_expr_bitwise_xml_parse(struct nft_rule_expr *e, char *xml)
 	bitwise->xor.len = data_regtmp.len;
 	e->flags |= (1 << NFT_EXPR_BITWISE_XOR);
 
+	/* Additional validation: mask and xor must use the same number of
+	 * data registers.
+	 */
+
+	if (bitwise->mask.len != bitwise->xor.len) {
+		mxmlDelete(tree);
+		return -1;
+	}
+
+
 	mxmlDelete(tree);
 	return 0;
 #else

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