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| author | Trent Lloyd <lathiat@bur.st> | 2006-11-06 14:01:51 +0000 |
|---|---|---|
| committer | Trent Lloyd <lathiat@bur.st> | 2006-11-06 14:01:51 +0000 |
| commit | 71ef4b773ae4cc737dde645b76b8ffa0ace227e5 (patch) | |
| tree | 3db0c9a7a95507f9bea6b1bfb2feaeaebafe5dbb /avahi-core/netlink.c | |
| parent | 25681df85706bbdc5d6ad011537b7b4f7d05cae5 (diff) | |
Fix a bug where Avahi does not verify the source of netlink messages
(Closes #69)
Update NEWS/configure for 0.6.15
git-svn-id: file:///home/lennart/svn/public/avahi/trunk@1331 941a03a8-eaeb-0310-b9a0-b1bbd8fe43fe
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)) { |