Messages in this thread Patch in this message | | | From | Richard Guy Briggs <> | Subject | [PATCH 5/5] audit: send multicast messages only if there are listeners | Date | Wed, 19 Feb 2014 13:08:23 -0500 |
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Test first to see if there are any userspace multicast listeners bound to the socket before starting the multicast send work.
Signed-off-by: Richard Guy Briggs <rgb@redhat.com> --- kernel/audit.c | 2 ++ 1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/kernel/audit.c b/kernel/audit.c index 0da57b6..6e8d137 100644 --- a/kernel/audit.c +++ b/kernel/audit.c @@ -434,6 +434,8 @@ static void kauditd_send_multicast_skb(struct sk_buff *skb) struct sk_buff *copy; struct nlmsghdr *nlh; + if (!netlink_has_listeners(audit_sock, AUDIT_NLGRP_READLOG)) + return; /* * The seemingly wasteful skb_copy() is necessary because the original * kaudit unicast socket sends up messages with nlmsg_len set to the -- 1.7.1
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