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-rw-r--r--src/resolve/resolved-dns-dnssec.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/src/resolve/resolved-dns-dnssec.c b/src/resolve/resolved-dns-dnssec.c
index 51327105d0..eddab58a81 100644
--- a/src/resolve/resolved-dns-dnssec.c
+++ b/src/resolve/resolved-dns-dnssec.c
@@ -1710,7 +1710,8 @@ static int dnssec_nsec_covers(DnsResourceRecord *rr, const char *name) {
}
static int dnssec_nsec_covers_wildcard(DnsResourceRecord *rr, const char *name) {
- const char *common_suffix, *wc;
+ _cleanup_free_ char *wc = NULL;
+ const char *common_suffix;
int r;
assert(rr);
@@ -1734,7 +1735,10 @@ static int dnssec_nsec_covers_wildcard(DnsResourceRecord *rr, const char *name)
if (r <= 0)
return r;
- wc = strjoina("*.", common_suffix);
+ r = dns_name_concat("*", common_suffix, &wc);
+ if (r < 0)
+ return r;
+
return dns_name_between(dns_resource_key_name(rr->key), wc, rr->nsec.next_domain_name);
}