Hello Steve, I think micro NLMSG_ALIGN is needless for nlmsg_len, NLMSG_SPACE is sufficient. because NLMSG_SPACE includes the rounded netlink header size. Now no errors occurred because struct req has been set to all 0. Signed-off-by: Yu Zhiguo<yuzg(a)cn.fujitsu.com> --- lib/netlink.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/lib/netlink.c b/lib/netlink.c index 2f78a96..2e2e6be 100644 --- a/lib/netlink.c +++ b/lib/netlink.c @@ -220,7 +220,7 @@ int audit_send(int fd, int type, const void *data, unsigned int size) sequence = 1; memset(&req, 0, sizeof(req)); - req.nlh.nlmsg_len = NLMSG_ALIGN(req.nlh.nlmsg_len) + NLMSG_SPACE(size); + req.nlh.nlmsg_len = NLMSG_SPACE(size); req.nlh.nlmsg_type = type; req.nlh.nlmsg_flags = NLM_F_REQUEST|NLM_F_ACK; req.nlh.nlmsg_seq = sequence;