This example no longer works on more recent kernels: genl-family-get error: Invalid argument dmesg says: netlink: 'genl-family-get': attribute type 1 has an invalid length. Fix this and also zero out the reserved field in the genl header, while not validated yet for dumps this could change. Reported-by: Divyanshu Rathore Signed-off-by: Florian Westphal --- I will push this out later today. examples/genl/genl-family-get.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/examples/genl/genl-family-get.c b/examples/genl/genl-family-get.c index ba8de122094c..0c2006755e30 100644 --- a/examples/genl/genl-family-get.c +++ b/examples/genl/genl-family-get.c @@ -199,8 +199,9 @@ int main(int argc, char *argv[]) genl = mnl_nlmsg_put_extra_header(nlh, sizeof(struct genlmsghdr)); genl->cmd = CTRL_CMD_GETFAMILY; genl->version = 1; + genl->reserved = 0; - mnl_attr_put_u32(nlh, CTRL_ATTR_FAMILY_ID, GENL_ID_CTRL); + mnl_attr_put_u16(nlh, CTRL_ATTR_FAMILY_ID, GENL_ID_CTRL); if (argc >= 2) mnl_attr_put_strz(nlh, CTRL_ATTR_FAMILY_NAME, argv[1]); else -- 2.51.0