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Diffstat (limited to 'net/tipc/netlink_compat.c')
-rw-r--r--net/tipc/netlink_compat.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/net/tipc/netlink_compat.c b/net/tipc/netlink_compat.c
index 68a0b7308936..89e6ae3b3c33 100644
--- a/net/tipc/netlink_compat.c
+++ b/net/tipc/netlink_compat.c
@@ -762,9 +762,14 @@ static int tipc_nl_compat_link_set(struct tipc_nl_compat_cmd_doit *cmd,
struct tipc_link_config *lc;
struct tipc_bearer *bearer;
struct tipc_media *media;
+ int len;
lc = (struct tipc_link_config *)TLV_DATA(msg->req);
+ len = min_t(int, TLV_GET_DATA_LEN(msg->req), TIPC_MAX_LINK_NAME);
+ if (!string_is_valid(lc->name, len))
+ return -EINVAL;
+
media = tipc_media_find(lc->name);
if (media) {
cmd->doit = &__tipc_nl_media_set;