diff options
Diffstat (limited to 'avahi-core/netlink.c')
| -rw-r--r-- | avahi-core/netlink.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/avahi-core/netlink.c b/avahi-core/netlink.c index b2a6684..893295d 100644 --- a/avahi-core/netlink.c +++ b/avahi-core/netlink.c @@ -62,6 +62,12 @@ int avahi_netlink_work(AvahiNetlink *nl, int block) { p = (struct nlmsghdr *) nl->buffer; + /* Check that this message originated from the kernel, + or a request from avahi itself, and not another process */ + if ((p->nlmsg_pid != 0) && (p->nlmsg_pid != getpid())) { + return -1; + } + assert(nl->callback); for (; bytes > 0; p = NLMSG_NEXT(p, bytes)) { |