Limiting SECCOMP audit events

[Tyler Hicks]

On 12/13/2017 05:58 PM, Steve Grubb wrote:
> Hello,
> 
>  
> 
> Over the last month, the amount of seccomp events in audit logs is
> sky-rocketing. I have over a million events in the last 2 days. Most of
> this is generated by firefox and qt webkit.
> 
>  
> 
> I am wondering if the audit package should ship a file for
> 
>  
> 
> /usr/lib/sysctl.d/60-auditd.conf
> 
>  
> 
> wherein it has
> 
>  
> 
> kernel.seccomp.actions_logged = kill_process kill_thread errno

I agree with Kees here. IMO, you only want "kill_process kill_thread"
which is the default.

> Also, has anyone verified this sysctl is filtering audit events? Even
> with the above, I have over a million events on a 4.14.3 kernel. Firefox
> alone is generating over 50,000 events per hour.

Yes. I tested it a lot as the changes were being upstreamed and again
when I backported the changes to Ubuntu releases 17.10, 17.04, and 16.04
LTS. Those kernels have been released for a month and a half now and I
haven't heard of any issues.

I'll install a Fedora VM and see if I can determine what's happening.

Tyler

> 
>  
> 
> Thanks,
> 
> -Steve
> 


-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 801 bytes
Desc: OpenPGP digital signature
URL: <http://listman.redhat.com/archives/linux-audit/attachments/20171214/232b0a04/attachment.sig>