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Bug 1983268 - SELinux is preventing /usr/bin/systemctl from getattr access on the filesystem /.
Summary: SELinux is preventing /usr/bin/systemctl from getattr access on the filesyste...
Keywords:
Status: CLOSED DUPLICATE of bug 1979182
Alias: None
Product: Red Hat Enterprise Linux 8
Classification: Red Hat
Component: selinux-policy
Version: CentOS Stream
Hardware: x86_64
OS: Linux
medium
medium
Target Milestone: beta
: 8.5
Assignee: Zdenek Pytela
QA Contact: Milos Malik
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2021-07-17 05:52 UTC by Phil Baker
Modified: 2021-10-07 18:59 UTC (History)
7 users (show)

Fixed In Version:
Doc Type: No Doc Update
Doc Text:
Clone Of:
Environment:
Last Closed: 2021-07-30 12:06:22 UTC
Type: Bug
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)
Cockpit log entry (982 bytes, text/plain)
2021-07-17 05:52 UTC, Phil Baker 		no flags Details
ausearch_output (2.06 KB, text/plain)
2021-07-30 12:00 UTC, kellerbe1 		no flags Details
View All

Description Phil Baker 2021-07-17 05:52:32 UTC 
Created attachment 1802606 [details]
Cockpit log entry

Description of problem:
SELinux is preventing /usr/bin/systemctl from getattr access on the filesystem /. The timestamp of the log in Cockpit corresponds to the boot time on my system. 

Version-Release number of selected component (if applicable):
CentOS Stream 8
selinux-policy-3.14.3-72.el8.noarch

How reproducible:
Always

Steps to Reproduce:
1.Boot system
2.Log into Cockpit
3.Check Logs

Additional info:
In my limited observation, this error appears confined to boot time,
Comment 1 Milos Malik 2021-07-22 11:33:44 UTC 
We would like to see the detailed SELinux denials.

Please run the following command on the machine where the cockpit issues appear.

# ausearch -m avc -m user_avc -m selinux_err -i -ts today

Please attach the output of the command to this bug.

Thank you.
Comment 2 kellerbe1 2021-07-30 12:00:41 UTC 
Created attachment 1809388 [details]
ausearch_output
Comment 3 Zdenek Pytela 2021-07-30 12:06:22 UTC 
Thank you for the ausearch command output, it matches bz#1979182, so we will continue there.

*** This bug has been marked as a duplicate of bug 1979182 ***
Comment 4 Phil Baker 2021-07-30 14:05:03 UTC 
Here's the output: 

[root@c2 pbaker]# ausearch -m avc -m user_avc -m selinux_err -i -ts today
----
type=PROCTITLE msg=audit(07/30/2021 13:59:51.174:11) : proctitle=systemctl show --property Listen cockpit.socket 
type=SYSCALL msg=audit(07/30/2021 13:59:51.174:11) : arch=x86_64 syscall=fstatfs success=no exit=EACCES(Permission denied) a0=0x3 a1=0x7ffc9b0e1c10 a2=0x280100 a3=0x0 items=0 ppid=888 pid=889 auid=unset uid=root gid=root euid=root suid=root fsuid=root egid=root sgid=root fsgid=root tty=(none) ses=unset comm=systemctl exe=/usr/bin/systemctl subj=system_u:system_r:cockpit_ws_t:s0 key=(null) 
type=AVC msg=audit(07/30/2021 13:59:51.174:11) : avc:  denied  { getattr } for  pid=889 comm=systemctl name=/ dev="dm-0" ino=128 scontext=system_u:system_r:cockpit_ws_t:s0 tcontext=system_u:object_r:fs_t:s0 tclass=filesystem permissive=0 
----
type=PROCTITLE msg=audit(07/30/2021 13:59:51.562:31) : proctitle=systemctl show --property Listen cockpit.socket 
type=SYSCALL msg=audit(07/30/2021 13:59:51.562:31) : arch=x86_64 syscall=fstatfs success=no exit=EACCES(Permission denied) a0=0x3 a1=0x7ffd2b79cdf0 a2=0x280100 a3=0x0 items=0 ppid=1177 pid=1180 auid=unset uid=root gid=root euid=root suid=root fsuid=root egid=root sgid=root fsgid=root tty=(none) ses=unset comm=systemctl exe=/usr/bin/systemctl subj=system_u:system_r:cockpit_ws_t:s0 key=(null) 
type=AVC msg=audit(07/30/2021 13:59:51.562:31) : avc:  denied  { getattr } for  pid=1180 comm=systemctl name=/ dev="dm-0" ino=128 scontext=system_u:system_r:cockpit_ws_t:s0 tcontext=system_u:object_r:fs_t:s0 tclass=filesystem permissive=0
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