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ip6: Perform sanity check before processing prefix messages

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Verifies that the provided message consists of at least the prefix header.
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Thomas Graf 2011-09-09 11:39:07 +02:00 • committed by Dan Williams
parent 3f3a63084c
commit 1134eee1e6
1 changed files with 5 additions and 0 deletions
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5
src/ip6-manager/nm-ip6-manager.c
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@ -624,6 +624,11 @@ process_prefix (NMIP6Manager *manager, struct nl_msg *msg)
nm_log_dbg (LOGD_IP6, "processing netlink new prefix message");
if (!nlmsg_valid_hdr (nlmsg_hdr (msg), sizeof(*pmsg))) {
nm_log_dbg (LOGD_IP6, "ignoring invalid prefix message");
return NULL;
}
pmsg = (struct prefixmsg *) NLMSG_DATA (nlmsg_hdr (msg));
device = nm_ip6_manager_get_device (manager, pmsg->prefix_ifindex);