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resolved: disable SO_BINDTOIFINDEX hack for localhost IP addresses

Fixes: #23010
(cherry picked from commit 5f9041afec65ce88c8b2a2ca3f6d14802ac01a56)
This commit is contained in:
Lennart Poettering 2023-01-05 22:10:46 +01:00 committed by Zbigniew Jędrzejewski-Szmek
parent 8ec0142c13
commit a0532ffd2f

View File

@ -474,7 +474,8 @@ static int dns_scope_socket(
* host result in EHOSTUNREACH, since Linux won't send the packets out of the specified
* interface, but delivers them directly to the local socket. */
if (s->link &&
!manager_find_link_address(s->manager, sa.sa.sa_family, sockaddr_in_addr(&sa.sa))) {
!manager_find_link_address(s->manager, sa.sa.sa_family, sockaddr_in_addr(&sa.sa)) &&
in_addr_is_localhost(sa.sa.sa_family, sockaddr_in_addr(&sa.sa)) == 0) {
r = socket_bind_to_ifindex(fd, ifindex);
if (r < 0)
return r;