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Bug 2034463 - [RHEL9] SELinux is preventing /usr/sbin/fcoemon from module_request access on the system labeled kernel_t
Summary: [RHEL9] SELinux is preventing /usr/sbin/fcoemon from module_request access on...
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 9
Classification: Red Hat
Component: selinux-policy
Version: 9.0
Hardware: Unspecified
OS: Linux
medium
medium
Target Milestone: rc
: 9.0
Assignee: Zdenek Pytela
QA Contact: Milos Malik
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2021-12-21 02:27 UTC by guazhang@redhat.com
Modified: 2022-05-17 16:12 UTC (History)
3 users (show)

Fixed In Version: selinux-policy-34.1.21-1.el9
Doc Type: No Doc Update
Doc Text:
Clone Of:
Environment:
Last Closed: 2022-05-17 15:50:02 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-106296 0 None None None 2021-12-21 02:36:21 UTC
Red Hat Product Errata RHBA-2022:3918 0 None None None 2022-05-17 15:50:11 UTC

Internal Links: 1940317

Description guazhang@redhat.com 2021-12-21 02:27:36 UTC 
Description of problem:
avc check error and get error SELinux is preventing /usr/sbin/fcoemon from module_request access on the system labeled kernel_t


Version-Release number of selected component (if applicable):
selinux-policy-34.1.20-1.el9.noarch
RHEL-9.0.0-20211216.2

How reproducible:


Steps to Reproduce:
1.
2.
3.

Actual results:


Expected results:


Additional info:


*  **  **  **  **  **  **  **  **  **  **  **  **  **  **  **  **  **
Last login: Mon Dec 20 21:17:59 2021 from 10.72.12.73
[root@storageqe-67 ~]# sealert -l 53dfe07a-9498-44bd-819a-109787cf4dde
SELinux is preventing /usr/sbin/fcoemon from module_request access on the system labeled kernel_t.

*****  Plugin catchall_boolean (89.3 confidence) suggests   ******************

If you want to allow domain to kernel load modules
Then you must tell SELinux about this by enabling the 'domain_kernel_load_modules' boolean.

Do
setsebool -P domain_kernel_load_modules 1

*****  Plugin catchall (11.6 confidence) suggests   **************************

If you believe that fcoemon should be allowed module_request access on system labeled kernel_t by default.
Then you should report this as a bug.
You can generate a local policy module to allow this access.
Do
allow this access for now by executing:
# ausearch -c 'fcoemon' --raw | audit2allow -M my-fcoemon
# semodule -X 300 -i my-fcoemon.pp


Additional Information:
Source Context                system_u:system_r:fcoemon_t:s0
Target Context                system_u:system_r:kernel_t:s0
Target Objects                Unknown [ system ]
Source                        fcoemon
Source Path                   /usr/sbin/fcoemon
Port                          <Unknown>
Host                          storageqe-67.rhts.eng.pek2.redhat.com
Source RPM Packages           fcoe-utils-1.0.34-0.git14ef0d2.el9.x86_64
Target RPM Packages           
SELinux Policy RPM            selinux-policy-targeted-34.1.20-1.el9.noarch
Local Policy RPM              selinux-policy-targeted-34.1.20-1.el9.noarch
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Enforcing
Host Name                     storageqe-67.rhts.eng.pek2.redhat.com
Platform                      Linux storageqe-67.rhts.eng.pek2.redhat.com
                              5.14.0-32.el9.x86_64 #1 SMP PREEMPT Thu Dec 16
                              00:20:53 EST 2021 x86_64 x86_64
Alert Count                   24
First Seen                    2021-12-20 20:19:25 EST
Last Seen                     2021-12-20 20:48:21 EST
Local ID                      53dfe07a-9498-44bd-819a-109787cf4dde

Raw Audit Messages
type=AVC msg=audit(1640051301.119:36): avc:  denied  { module_request } for  pid=1356 comm="fcoemon" kmod="8021q" scon0


type=SYSCALL msg=audit(1640051301.119:36): arch=x86_64 syscall=ioctl success=no exit=ENOPKG a0=8 a1=8982 a2=7ffea5a184)

Hash: fcoemon,fcoemon_t,kernel_t,system,module_request

[root@storageqe-67 ~]# ausearch -c 'fcoemon' --raw | audit2allow -M my-fcoemon
Nothing to do
[root@storageqe-67 ~]# semodule -X 300 -i my-fcoemon.pp
libsemanage.map_file: Unable to open my-fcoemon.pp
 (No such file or directory).
libsemanage.semanage_direct_install_file: Unable to read file my-fcoemon.pp
 (No such file or directory).
semodule:  Failed on my-fcoemon.pp!
[root@storageqe-67 ~]# 



Dec 20 20:19:28 storageqe-67 setroubleshoot[1366]: SELinux is preventing /usr/sbin/fcoemon from module_request access on the system labeled kernel_t. For complete SELinux messages run: sealert -l 53dfe07a-9498-44bd-819a-109787cf4dde
Dec 20 20:19:28 storageqe-67 setroubleshoot[1366]: SELinux is preventing /usr/sbin/fcoemon from module_request access on the system labeled kernel_t.#012#012*****  Plugin catchall_boolean (89.3 confidence) suggests   ******************#012#012If you want to allow domain to kernel load modules#012Then you must tell SELinux about this by enabling the 'domain_kernel_load_modules' boolean.#012#012Do#012setsebool -P domain_kernel_load_modules 1#012#012*****  Plugin catchall (11.6 confidence) suggests   **************************#012#012If you believe that fcoemon should be allowed module_request access on system labeled kernel_t by default.#012Then you should report this as a bug.#012You can generate a local policy module to allow this access.#012Do#012allow this access for now by executing:#012# ausearch -c 'fcoemon' --raw | audit2allow -M my-fcoemon#012# semodule -X 300 -i my-fcoemon.pp#012



SELinux status:                 enabled
SELinuxfs mount:                /sys/fs/selinux
SELinux root directory:         /etc/selinux
Loaded policy name:             targeted
Current mode:                   enforcing
Mode from config file:          enforcing
Policy MLS status:              enabled
Policy deny_unknown status:     allowed
Memory protection checking:     actual (secure)
Max kernel policy version:      33
selinux-policy-34.1.20-1.el9.noarch
----
time->Mon Dec 20 20:19:25 2021
type=PROCTITLE msg=audit(1640049565.129:33): proctitle=2F7573722F7362696E2F66636F656D6F6E002D2D666F726567726F756E64002D2D64656275673D244445425547002D2D7379736C6F673D245359534C4F47
type=SYSCALL msg=audit(1640049565.129:33): arch=c000003e syscall=16 success=no exit=-65 a0=7 a1=8982 a2=7ffd13ebd2f0 a3=7ff389ee83e0 items=0 ppid=1 pid=1358 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm="fcoemon" exe="/usr/sbin/fcoemon" subj=system_u:system_r:fcoemon_t:s0 key=(null)
type=AVC msg=audit(1640049565.129:33): avc:  denied  { module_request } for  pid=1358 comm="fcoemon" kmod="8021q" scontext=system_u:system_r:fcoemon_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=system permissive=0
----
time->Mon Dec 20 20:19:25 2021
type=PROCTITLE msg=audit(1640049565.477:36): proctitle=2F7573722F7362696E2F66636F656D6F6E002D2D666F726567726F756E64002D2D64656275673D244445425547002D2D7379736C6F673D245359534C4F47
type=SYSCALL msg=audit(1640049565.477:36): arch=c000003e syscall=16 success=no exit=-65 a0=8 a1=8982 a2=7ffd13ebd2f0 a3=7ff389ee83e0 items=0 ppid=1 pid=1358 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm="fcoemon" exe="/usr/sbin/fcoemon" subj=system_u:system_r:fcoemon_t:s0 key=(null)
type=AVC msg=audit(1640049565.477:36): avc:  denied  { module_request } for  pid=1358 comm="fcoemon" kmod="8021q" scontext=system_u:system_r:fcoemon_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=system permissive=0



https://beaker.engineering.redhat.com/recipes/11168945#task137130136,task137130138
http://lab-04.rhts.eng.pek2.redhat.com/beaker/logs/results/643536+/643536993/avc.log
Comment 1 Zdenek Pytela 2022-01-05 17:40:21 UTC 
Hi,

What are the conditions to trigger this issue?
Is there some specal configuration/hardware needed? 
Is fcoemon started as a systemd service?
Comment 2 guazhang@redhat.com 2022-01-06 02:10:54 UTC 
Hi,

it easy to reproduce the bug .

1. setup bnx2fc fcoe envronment  and discover luns 
2. reboot
3. systemctl restart  fcoe

Jan  5 21:04:55 storageqe-16 setroubleshoot[2996]: SELinux is preventing /usr/sbin/fcoemon from module_request access on the system labeled kernel_t. For complete SELinux messages run: sealert -l 47fb6716-5e81-4a02-be88-77ab092a227e
Jan  5 21:04:55 storageqe-16 setroubleshoot[2996]: SELinux is preventing /usr/sbin/fcoemon from module_request access on the system labeled kernel_t.#012#012*****  Plugin catchall_boolean (89.3 confidence) suggests   ******************#012#012If you want to allow domain to kernel load modules#012Then you must tell SELinux about this by enabling the 'domain_kernel_load_modules' boolean.#012#012Do#012setsebool -P domain_kernel_load_modules 1#012#012*****  Plugin catchall (11.6 confidence) suggests   **************************#012#012If you believe that fcoemon should be allowed module_request access on system labeled kernel_t by default.#012Then you should report this as a bug.#012You can generate a local policy module to allow this access.#012Do#012allow this access for now by executing:#012# ausearch -c 'fcoemon' --raw | audit2allow -M my-fcoemon#012# semodule -X 300 -i my-fcoemon.pp#012



# sealert -l 47fb6716-5e81-4a02-be88-77ab092a227e
SELinux is preventing /usr/sbin/fcoemon from module_request access on the system labeled kernel_t.

*****  Plugin catchall_boolean (89.3 confidence) suggests   ******************

If you want to allow domain to kernel load modules
Then you must tell SELinux about this by enabling the 'domain_kernel_load_modules' boolean.

Do
setsebool -P domain_kernel_load_modules 1

*****  Plugin catchall (11.6 confidence) suggests   **************************

If you believe that fcoemon should be allowed module_request access on system labeled kernel_t by default.
Then you should report this as a bug.
You can generate a local policy module to allow this access.
Do
allow this access for now by executing:
# ausearch -c 'fcoemon' --raw | audit2allow -M my-fcoemon
# semodule -X 300 -i my-fcoemon.pp


Additional Information:
Source Context                system_u:system_r:fcoemon_t:s0
Target Context                system_u:system_r:kernel_t:s0
Target Objects                Unknown [ system ]
Source                        fcoemon
Source Path                   /usr/sbin/fcoemon
Port                          <Unknown>
Host                          storageqe-16.sqe.lab.eng.bos.redhat.com
Source RPM Packages           fcoe-utils-1.0.34-0.git14ef0d2.el9.x86_64
Target RPM Packages           
SELinux Policy RPM            selinux-policy-targeted-34.1.20-1.el9.noarch
Local Policy RPM              selinux-policy-targeted-34.1.20-1.el9.noarch
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Enforcing
Host Name                     storageqe-16.sqe.lab.eng.bos.redhat.com
Platform                      Linux storageqe-16.sqe.lab.eng.bos.redhat.com
                              5.14.0-39.el9.x86_64 #1 SMP PREEMPT Fri Dec 24
                              00:07:58 EST 2021 x86_64 x86_64
Alert Count                   4
First Seen                    2022-01-05 21:04:52 EST
Last Seen                     2022-01-05 21:04:52 EST
Local ID                      47fb6716-5e81-4a02-be88-77ab092a227e

Raw Audit Messages
type=AVC msg=audit(1641434692.558:116): avc:  denied  { module_request } for  pid=2995 comm="fcoemon" kmod="8021q" scontext=system_u:system_r:fcoemon_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=system permissive=0


type=SYSCALL msg=audit(1641434692.558:116): arch=x86_64 syscall=ioctl success=no exit=ENOPKG a0=8 a1=8982 a2=7ffdd90301c0 a3=7fec871ae3e0 items=0 ppid=1 pid=2995 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm=fcoemon exe=/usr/sbin/fcoemon subj=system_u:system_r:fcoemon_t:s0 key=(null)

Hash: fcoemon,fcoemon_t,kernel_t,system,module_request
Comment 12 errata-xmlrpc 2022-05-17 15:50:02 UTC 
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory (new packages: selinux-policy), and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2022:3918
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