lkml.org 
[lkml]   [2020]   [Jun]   [23]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [PATCH v3 2/2] IMA: Add audit log for failure conditions
From
Date
On Thu, 2020-06-18 at 14:10 -0700, Lakshmi Ramasubramanian wrote:
> process_buffer_measurement() and ima_alloc_key_entry() functions need to
> log an audit message for auditing integrity measurement failures.
>
> Add audit message in these two functions. Remove "pr_devel" log message
> in process_buffer_measurement().
>
> Sample audit messages:
>
> [ 6.303048] audit: type=1804 audit(1592506281.627:2): pid=1 uid=0
> auid=4294967295 ses=4294967295 subj=kernel op=measuring_key
> cause=ENOMEM comm="swapper/0" name=".builtin_trusted_keys" res=0
> errno=-12

My only concern is that auditing -ENOMEM will put additional memory
pressure on the system.  I'm not sure if this is a concern and, if so,
how it should be handled.

>
> [ 8.019432] audit: type=1804 audit(1592506283.344:10): pid=1
> uid=0 auid=4294967295 ses=4294967295
> subj=system_u:system_r:init_t:s0 op=measuring_kexec_cmdline
> cause=hashing_error comm="systemd" name="kexec-cmdline" res=0
> errno=-22
>
> Signed-off-by: Lakshmi Ramasubramanian <nramas@linux.microsoft.com>

Reviewed-by: Mimi Zohar <zohar@linux.ibm.com>

\
 
 \ /
  Last update: 2020-06-23 21:58    [W:0.591 / U:0.008 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site