gossipd: don't leak fields in create_node_announcement.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
7 years ago · 5d1f71c3c0
1 changed files with 2 additions and 2 deletions
--- a/gossipd/gossip.c
+++ b/gossipd/gossip.c
@ -317,11 +317,11 @@ static u8 *create_node_announcement(const tal_t *ctx, struct daemon *daemon,
 				    secp256k1_ecdsa_signature *sig,
 				    u32 timestamp)
 {
-	u8 *addresses = tal_arr(ctx, u8, 0);
+	u8 *addresses = tal_arr(tmpctx, u8, 0);
 	u8 *announcement;
 	size_t i;
 	if (!sig) {
-		sig = tal(ctx, secp256k1_ecdsa_signature);
+		sig = tal(tmpctx, secp256k1_ecdsa_signature);
 		memset(sig, 0, sizeof(*sig));
 	}
 	for (i = 0; i < tal_count(daemon->announcable); i++)