1977261 – AVC denial comm="mdadm" name="dma_heap" dev="devtmpfs"

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Bug 1977261 - AVC denial comm="mdadm" name="dma_heap" dev="devtmpfs"

Summary: AVC denial comm="mdadm" name="dma_heap" dev="devtmpfs"

Keywords:
Status:	CLOSED DUPLICATE of bug 1966834
Alias:	None
Product:	Red Hat Enterprise Linux 9
Classification:	Red Hat
Component:	selinux-policy
Sub Component:
Version:	9.0
Hardware:	Unspecified
OS:	Unspecified
Priority:	medium
Severity:	medium
Target Milestone:	beta
Target Release:	9.0 Beta
Assignee:	Zdenek Pytela
QA Contact:	BaseOS QE Security Team
Docs Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+	depends on / blocked

Reported:	2021-06-29 10:42 UTC by Zdenek Veleba
Modified:	2021-06-29 11:18 UTC (History)
CC List:	4 users (show)
Fixed In Version:
Doc Type:	No Doc Update
Doc Text:
Clone Of:
Environment:
Last Closed:	2021-06-29 11:03:44 UTC
Type:	Bug
Target Upstream Version:
Embargoed:
Dependent Products:

Attachments	(Terms of Use)

Description Zdenek Veleba 2021-06-29 10:42:48 UTC

During our testing we found issue with the selinux policy:

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-34.1.8-1.el9.noarch
----
time->Tue Jun 29 09:29:24 2021
type=AVC msg=audit(1624973364.249:116): avc:  denied  { search } for  pid=668 comm="mdadm" name="dma_heap" dev="devtmpfs" ino=102 scontext=system_u:system_r:mdadm_t:s0 tcontext=system_u:object_r:dma_device_dir_t:s0 tclass=dir permissive=0
----
time->Tue Jun 29 09:29:24 2021
type=AVC msg=audit(1624973364.249:117): avc:  denied  { getattr } for  pid=668 comm="mdadm" path="/dev/dma_heap" dev="devtmpfs" ino=102 scontext=system_u:system_r:mdadm_t:s0 tcontext=system_u:object_r:dma_device_dir_t:s0 tclass=dir permissive=0
----
time->Tue Jun 29 09:29:25 2021
type=AVC msg=audit(1624973365.130:143): avc:  denied  { search } for  pid=744 comm="mdadm" name="dma_heap" dev="devtmpfs" ino=102 scontext=system_u:system_r:mdadm_t:s0-s0:c0.c1023 tcontext=system_u:object_r:dma_device_dir_t:s0 tclass=dir permissive=0
----
time->Tue Jun 29 09:29:25 2021
type=AVC msg=audit(1624973365.148:144): avc:  denied  { getattr } for  pid=744 comm="mdadm" path="/dev/dma_heap" dev="devtmpfs" ino=102 scontext=system_u:system_r:mdadm_t:s0-s0:c0.c1023 tcontext=system_u:object_r:dma_device_dir_t:s0 tclass=dir permissive=0

This happens when running system on RAID1

Installed using ks:
reqpart --add-boot
part swap --fstype="swap" --recommended --label=SWAP
part raid.01 --size=6144
part raid.02 --size=6144
raid / --device=0 --level=RAID1 raid.01 raid.02
bootloader --location=mbr --leavebootorder
clearpart --all --initlabel
keyboard us
lang en_US.UTF-8
rootpw anaconda
selinux --enforcing
timezone America/New_York
zerombr
network --bootproto dhcp
reboot
cmdline

With final storage setup:
NAME    MAJ:MIN RM SIZE RO TYPE  MOUNTPOINTS
vda     253:0    0  10G  0 disk  
|-vda1  253:1    0   1G  0 part  /boot
`-vda2  253:2    0   6G  0 part  
  `-md0   9:0    0   6G  0 raid1 /
vdb     253:16   0  10G  0 disk  
|-vdb1  253:17   0   6G  0 part  
| `-md0   9:0    0   6G  0 raid1 /
`-vdb2  253:18   0   4G  0 part  [SWAP]
vdc     253:32   0  10G  0 disk  
vdd     253:48   0  10G  0 disk  
vde     253:64   0  10G  0 disk  
vdf     253:80   0  10G  0 disk  

Found in version:
RHEL-9.0.0-20210616.0
selinux-policy-34.1.8-1.el9

Comment 2 Zdenek Pytela 2021-06-29 11:03:44 UTC

Please use the latest selinux-policy package version.

*** This bug has been marked as a duplicate of bug 1965411 ***

Comment 3 Zdenek Pytela 2021-06-29 11:18:37 UTC


*** This bug has been marked as a duplicate of bug 1966834 ***

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