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Bug 2143576 - AVCs reported when insights-client executes luksmeta (among others)
Summary: AVCs reported when insights-client executes luksmeta (among others)
Keywords:
Status: CLOSED DUPLICATE of bug 2136762
Alias: None
Product: Red Hat Enterprise Linux 8
Classification: Red Hat
Component: selinux-policy
Version: 8.7
Hardware: All
OS: Linux
high
high
Target Milestone: rc
: ---
Assignee: Zdenek Pytela
QA Contact: BaseOS QE Security Team
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2022-11-17 09:28 UTC by Renaud Métrich
Modified: 2023-05-17 02:34 UTC (History)
5 users (show)

Fixed In Version:
Doc Type: No Doc Update
Doc Text:
Clone Of:
Environment:
Last Closed: 2022-11-18 10:21:36 UTC
Type: Bug
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Issue Tracker RHELPLAN-139779 0 None None None 2022-11-17 09:39:31 UTC

Description Renaud Métrich 2022-11-17 09:28:28 UTC 
Description of problem:

Apparently latest insights-client executes luksmeta command, which causes an AVC to pop up when luksmeta, running in insights-client context, tries to read /dev/random:
-------- 8< ---------------- 8< ---------------- 8< ---------------- 8< --------
type=AVC msg=audit(1668154033.316:3290): avc:  denied  { read } for  pid=112075 comm="luksmeta" name="random" dev="devtmpfs" ino=1031 scontext=system_u:system_r:insights_client_t:s0 tcontext=system_u:object_r:random_device_t:s0 tclass=chr_file permissive=0
-------- 8< ---------------- 8< ---------------- 8< ---------------- 8< --------

Since insights and sosreport are very similar tools, insights should have same rules as sosreport has, but it's not the case:
-------- 8< ---------------- 8< ---------------- 8< ---------------- 8< --------
[root@vm-rhel8 ~]# sesearch -A -s insights_client_t -t random_device_t -c chr_file
allow insights_client_t device_node:chr_file getattr;

[root@vm-rhel8 ~]# sesearch -A -s sosreport_t -t random_device_t -c chr_file
allow devices_unconfined_type device_node:chr_file { append audit_access create execute execute_no_trans getattr ioctl link lock map mounton open quotaon read relabelfrom relabelto rename setattr swapon unlink write };
allow nsswitch_domain random_device_t:chr_file { getattr ioctl lock open read }; [ authlogin_nsswitch_use_ldap ]:True
allow sosreport_t device_node:chr_file getattr;
allow sosreport_t random_device_t:chr_file { getattr ioctl lock open read };
-------- 8< ---------------- 8< ---------------- 8< ---------------- 8< --------

Please fix the policy accordingly, it's not the first time AVCs show up after a insights-client update.
Especially, because insights-client pulls "Upstream code" somehow, we can expect more AVCs in the future.

Version-Release number of selected component (if applicable):

insights-client-3.1.7-8.el8.noarch
selinux-policy-3.14.3-108.el8.noarch

How reproducible:

Always on customer system
Comment 1 Zdenek Pytela 2022-11-18 10:21:36 UTC 
These rules are a part of the latest policy version:

rhel87# sesearch -A -s insights_client_t -t random_device_t -c chr_file
allow insights_client_t device_node:chr_file getattr;
allow insights_client_t random_device_t:chr_file { getattr ioctl lock open read };
allow nsswitch_domain random_device_t:chr_file { getattr ioctl lock open read }; [ authlogin_nsswitch_use_ldap ]:True
rhel87# rpm -q selinux-policy
selinux-policy-3.14.3-108.el8_7.1.noarch

and selinux-policy-3.14.3-111.el8.noarch

Also refer to https://bugzilla.redhat.com/show_bug.cgi?id=2136762 for other details including expected batch update.

*** This bug has been marked as a duplicate of bug 2136762 ***
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