Any process is able to send netlink messages with invalid types.
Make the warning rate-limited to prevent too much log spam.
The warning is supposed to hel
Reported-by: Florian Weimer <fweimer@xxxxxxxxxx>
Signed-off-by: Vladis Dronov <vdronov@xxxxxxxxxx>
---
security/selinux/hooks.c | 7 +++----
1 file changed, 3 insertions(+), 4 deletions(-)
diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index e4369d8..bf5010b 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -4787,10 +4787,9 @@ static int selinux_nlmsg_perm(struct sock *sk, struct sk_buff *skb)
err = selinux_nlmsg_lookup(sksec->sclass, nlh->nlmsg_type, &perm);
if (err) {
if (err == -EINVAL) {
- printk(KERN_WARNING
- "SELinux: unrecognized netlink message:"
- " protocol=%hu nlmsg_type=%hu sclass=%s\n",
- sk->sk_protocol, nlh->nlmsg_type,
+ pr_warn_ratelimited("SELinux: unrecognized netlink"
+ " message: protocol=%hu nlmsg_type=%hu"
+ " sclass=%s\n", sk->sk_protocol, nlh->nlmsg_type,
secclass_map[sksec->sclass - 1].name);
if (!selinux_enforcing || security_get_allow_unknown())
err = 0;
--
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