shaba/systemd-stable
1
1
Fork 0
mirror of https://github.com/systemd/systemd-stable.git synced 2025-01-25 06:03:40 +03:00
Code

stub: don't ever respond to datagrams coming in on non-localhost addreses, on the stub

Browse Source
This commit is contained in:
Lennart Poettering 2020-11-05 15:51:12 +01:00 committed by Yu Watanabe
parent 9ca875e80c
commit 565147b7bb
1 changed files with 1 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
src/resolve/resolved-dns-stub.c
View File

@ -379,8 +379,7 @@ static void dns_stub_process_query(Manager *m, DnsStubListenerExtra *l, DnsStrea
if (!l && /* l == NULL if this is the main stub */
(in_addr_is_localhost(p->family, &p->sender) <= 0 ||
in_addr_is_localhost(p->family, &p->destination) <= 0)) {
log_error("Got packet on unexpected IP range, refusing.");
dns_stub_send_failure(m, l, s, p, DNS_RCODE_SERVFAIL, false);
log_warning("Got packet on unexpected (i.e. non-localhost) IP range, ignoring.");
return;
}