Call the per-protocol unbind function rather than bind function on NETLINK_DROP_MEMBERSHIP in netlink_setsockopt().
Signed-off-by: Richard Guy Briggs <[email protected]> --- net/netlink/af_netlink.c | 4 +++- 1 files changed, 3 insertions(+), 1 deletions(-) diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c index 9ae6e0f..3938138 100644 --- a/net/netlink/af_netlink.c +++ b/net/netlink/af_netlink.c @@ -2109,7 +2109,7 @@ static int netlink_setsockopt(struct socket *sock, int level, int optname, return err; if (!val || val - 1 >= nlk->ngroups) return -EINVAL; - if (nlk->netlink_bind) { + if (optname == NETLINK_ADD_MEMBERSHIP && nlk->netlink_bind) { err = nlk->netlink_bind(val); if (err) return err; @@ -2118,6 +2118,8 @@ static int netlink_setsockopt(struct socket *sock, int level, int optname, netlink_update_socket_mc(nlk, val, optname == NETLINK_ADD_MEMBERSHIP); netlink_table_ungrab(); + if (optname == NETLINK_DROP_MEMBERSHIP && nlk->netlink_unbind) + nlk->netlink_unbind(val); err = 0; break; -- 1.7.1 -- Linux-audit mailing list [email protected] https://www.redhat.com/mailman/listinfo/linux-audit
