Hello, Paul.
>> Did you want the "Reported-by" tag included? I'm also adding the SELinux
>> list
>> back to the CC line.
Yes, could you please, indeed include lost line "Reported-by: Florian Weimer
<fwei...@redhat.com>".
It was my fault of omitting it while re-composing commit message.
Vladis Dronov | Red Hat, Inc.
| Product Security Engineer |
----- Original Message -----
From: "Paul Moore" <p...@paul-moore.com>
To: "Vladis Dronov" <vdro...@redhat.com>
Cc: linux-security-module@vger.kernel.org, seli...@tycho.nsa.gov
Sent: Friday, November 6, 2015 6:33:39 PM
Subject: Re: [PATCH v2] selinux: rate-limit unrecognized netlink message
warnings in selinux_nlmsg_perm()
On Wednesday, November 04, 2015 04:02:36 PM Vladis Dronov wrote:
> 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 help to find misbehaving programs, so
> print the triggering command name and pid.
>
> Signed-off-by: Vladis Dronov <vdro...@redhat.com>
> ---
> security/selinux/hooks.c | 9 +++++----
> 1 file changed, 5 insertions(+), 4 deletions(-)
Did you want the "Reported-by" tag included? I'm also adding the SELinux list
back to the CC line.
> diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
> index e4369d8..3d8087d 100644
> --- a/security/selinux/hooks.c
> +++ b/security/selinux/hooks.c
> @@ -4787,11 +4787,12 @@ 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",
> + pr_warn_ratelimited("SELinux: unrecognized netlink"
> + " message: protocol=%hu nlmsg_type=%hu sclass=%s"
> + " from %s[%d]\n",
> sk->sk_protocol, nlh->nlmsg_type,
> - secclass_map[sksec->sclass - 1].name);
> + secclass_map[sksec->sclass - 1].name,
> + current->comm, current->pid);
> if (!selinux_enforcing || security_get_allow_unknown())
> err = 0;
> }
--
paul moore
www.paul-moore.com
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