Bug 2294899

Summary: SELinux is preventing mariadbd from 'write' accesses on the file memory.pressure.
Product: [Fedora] Fedora Reporter: dani
Component: mysql-selinuxAssignee: Michal Schorm <mschorm>
Status: CLOSED ERRATA QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: unspecified Docs Contact:
Priority: unspecified    
Version: 40CC: adobes, amessina, dani, hhorak, ljavorsk, mschorm, redhat-bugzilla
Target Milestone: ---   
Target Release: ---   
Hardware: x86_64   
OS: Unspecified   
Whiteboard: abrt_hash:2a51c9f7bff4129d178f8633ae1c91d3122087d06120ff45c566f9e077c0bfad;VARIANT_ID=cinnamon;
Fixed In Version: mysql-selinux-1.0.11-1.fc41 mysql-selinux-1.0.11-1.fc39 mysql-selinux-1.0.11-1.fc40 Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2024-09-25 01:29:15 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Attachments:
Description Flags
File: description
none
File: os_info none

Description dani 2024-07-01 13:28:45 UTC
Description of problem:
Started the mariadb servi ce for the first time
SELinux is preventing mariadbd from 'write' accesses on the file memory.pressure.

*****  Plugin catchall (100. confidence) suggests   **************************

If you believe that mariadbd should be allowed write access on the memory.pressure file 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 'mariadbd' --raw | audit2allow -M my-mariadbd
# semodule -X 300 -i my-mariadbd.pp

Additional Information:
Source Context                system_u:system_r:mysqld_t:s0
Target Context                system_u:object_r:cgroup_t:s0
Target Objects                memory.pressure [ file ]
Source                        mariadbd
Source Path                   mariadbd
Port                          <Unknown>
Host                          (removed)
Source RPM Packages           
Target RPM Packages           
SELinux Policy RPM            selinux-policy-targeted-40.23-1.fc40.noarch
Local Policy RPM              mysql-selinux-1.0.10-3.fc40.noarch
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Enforcing
Host Name                     (removed)
Platform                      Linux (removed) 6.9.6-200.fc40.x86_64 #1 SMP
                              PREEMPT_DYNAMIC Fri Jun 21 15:48:21 UTC 2024
                              x86_64
Alert Count                   1
First Seen                    2024-07-01 16:05:18 IDT
Last Seen                     2024-07-01 16:05:18 IDT
Local ID                      a8fdaa46-9a59-4be9-9b00-2800d4394312

Raw Audit Messages
type=AVC msg=audit(1719839118.244:1866): avc:  denied  { write } for  pid=666485 comm="mariadbd" name="memory.pressure" dev="cgroup2" ino=36547 scontext=system_u:system_r:mysqld_t:s0 tcontext=system_u:object_r:cgroup_t:s0 tclass=file permissive=0


Hash: mariadbd,mysqld_t,cgroup_t,file,write

Version-Release number of selected component:
selinux-policy-targeted-40.23-1.fc40.noarch

Additional info:
reporter:       libreport-2.17.15
reason:         SELinux is preventing mariadbd from 'write' accesses on the file memory.pressure.
package:        selinux-policy-targeted-40.23-1.fc40.noarch
component:      mysql-selinux
hashmarkername: setroubleshoot
type:           libreport
kernel:         6.9.6-200.fc40.x86_64
comment:        Started the mariadb servi ce for the first time
component:      mysql-selinux

Comment 1 dani 2024-07-01 13:28:47 UTC
Created attachment 2038643 [details]
File: description

Comment 2 dani 2024-07-01 13:28:48 UTC
Created attachment 2038644 [details]
File: os_info

Comment 3 Michal Schorm 2024-08-09 23:50:54 UTC
Hello, thank you for the report.

This is most likely related to:
  https://github.com/MariaDB/server/commit/2323483528fbc5116c2990a208afddd775ee0e85

My conclusion from a quick initial investigation is that it is expected for the MariaDB to read to memory.pressure file, but I haven't noticed a block of code in which the write access would be required.

Further investigation is necessary.

Comment 4 Michael Chapman 2024-09-13 08:16:42 UTC
Duplicate of #2256002?

Comment 5 Fedora Update System 2024-09-16 13:22:57 UTC
FEDORA-2024-3721532bce (mysql-selinux-1.0.11-1.fc40) has been submitted as an update to Fedora 40.
https://bodhi.fedoraproject.org/updates/FEDORA-2024-3721532bce

Comment 6 Fedora Update System 2024-09-16 13:23:05 UTC
FEDORA-2024-28bb0038ce (mysql-selinux-1.0.11-1.fc39) has been submitted as an update to Fedora 39.
https://bodhi.fedoraproject.org/updates/FEDORA-2024-28bb0038ce

Comment 7 Fedora Update System 2024-09-16 13:23:11 UTC
FEDORA-2024-4f35baf4d4 (mysql-selinux-1.0.11-1.fc41) has been submitted as an update to Fedora 41.
https://bodhi.fedoraproject.org/updates/FEDORA-2024-4f35baf4d4

Comment 8 Fedora Update System 2024-09-17 03:07:49 UTC
FEDORA-2024-4f35baf4d4 has been pushed to the Fedora 41 testing repository.
Soon you'll be able to install the update with the following command:
`sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2024-4f35baf4d4`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2024-4f35baf4d4

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.

Comment 9 Fedora Update System 2024-09-17 03:12:48 UTC
FEDORA-2024-28bb0038ce has been pushed to the Fedora 39 testing repository.
Soon you'll be able to install the update with the following command:
`sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2024-28bb0038ce`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2024-28bb0038ce

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.

Comment 10 Fedora Update System 2024-09-18 01:42:51 UTC
FEDORA-2024-3721532bce has been pushed to the Fedora 40 testing repository.
Soon you'll be able to install the update with the following command:
`sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2024-3721532bce`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2024-3721532bce

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.

Comment 11 Fedora Update System 2024-09-25 01:29:15 UTC
FEDORA-2024-4f35baf4d4 (mysql-selinux-1.0.11-1.fc41) has been pushed to the Fedora 41 stable repository.
If problem still persists, please make note of it in this bug report.

Comment 12 Fedora Update System 2024-09-25 02:40:32 UTC
FEDORA-2024-28bb0038ce (mysql-selinux-1.0.11-1.fc39) has been pushed to the Fedora 39 stable repository.
If problem still persists, please make note of it in this bug report.

Comment 13 Fedora Update System 2024-09-26 02:44:16 UTC
FEDORA-2024-3721532bce (mysql-selinux-1.0.11-1.fc40) has been pushed to the Fedora 40 stable repository.
If problem still persists, please make note of it in this bug report.