diff options
| author |   Richard Alpe <richard.alpe@ericsson.com> | 2016-03-03 14:20:43 +0100 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2016-03-06 22:54:57 -0500 |
| commit | 34f65dbb6c7572b826d836d62b99de32ecf2af48 (patch) | |
| tree | 17f1ea1c6ecf7fac1d6bbc43a1ece9fc59ccb3b1 /net/tipc | |
| parent | tipc: safely copy UDP netlink data from user (diff) | |
| download | linux-dev-34f65dbb6c7572b826d836d62b99de32ecf2af48.tar.xz linux-dev-34f65dbb6c7572b826d836d62b99de32ecf2af48.zip | |
tipc: make sure required IPv6 addresses are scoped
Make sure the user has provided a scope for multicast and link local
addresses used locally by a UDP bearer.
Signed-off-by: Richard Alpe <richard.alpe@ericsson.com>
Acked-by: Jon Maloy <jon.maloy@ericsson.com>
Reviewed-by: Erik Hugne <erik.hugne@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/tipc')
| -rw-r--r-- | net/tipc/udp_media.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/net/tipc/udp_media.c b/net/tipc/udp_media.c index 6fe8740a226f..fb2f7ec68eef 100644 --- a/net/tipc/udp_media.c +++ b/net/tipc/udp_media.c @@ -310,9 +310,14 @@ err: #if IS_ENABLED(CONFIG_IPV6) } else if ((sa_local.ss_family & sa_remote.ss_family) == AF_INET6) { + int atype; struct sockaddr_in6 *ip6; ip6 = (struct sockaddr_in6 *)&sa_local; + atype = ipv6_addr_type(&ip6->sin6_addr); + if (__ipv6_addr_needs_scope_id(atype) && !ip6->sin6_scope_id) + return -EINVAL; + local->proto = htons(ETH_P_IPV6); local->udp_port = ip6->sin6_port; memcpy(&local->ipv6, &ip6->sin6_addr, sizeof(struct in6_addr)); |