Bug 2063994 - SELinux is preventing waydroid from 'getattr' accesses on the chr_file /dev/binderfs/anbox-binder.
Summary: SELinux is preventing waydroid from 'getattr' accesses on the chr_file /dev/b...
Keywords:
Status: CLOSED EOL
Alias: None
Product: Fedora
Classification: Fedora
Component: waydroid
Version: 37
Hardware: x86_64
OS: Unspecified
medium
medium
Target Milestone: ---
Assignee: Alessandro Astone
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard: abrt_hash:6a46155555310df44dc85fc6838...
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2022-03-14 20:37 UTC by Mikhail
Modified: 2023-12-05 21:05 UTC (History)
9 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed: 2023-12-05 21:05:24 UTC
Type: ---
Embargoed:


Attachments (Terms of Use)

Description Mikhail 2022-03-14 20:37:04 UTC
Description of problem:
SELinux is preventing waydroid from 'getattr' accesses on the chr_file /dev/binderfs/anbox-binder.

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

If you believe that waydroid should be allowed getattr access on the anbox-binder chr_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 'waydroid' --raw | audit2allow -M my-waydroid
# semodule -X 300 -i my-waydroid.pp

Additional Information:
Source Context                system_u:system_r:init_t:s0
Target Context                system_u:object_r:binderfs_t:s0
Target Objects                /dev/binderfs/anbox-binder [ chr_file ]
Source                        waydroid
Source Path                   waydroid
Port                          <Unknown>
Host                          (removed)
Source RPM Packages           
Target RPM Packages           
SELinux Policy RPM            selinux-policy-targeted-36.4-3.fc37.noarch
Local Policy RPM              selinux-policy-targeted-36.4-3.fc37.noarch
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Permissive
Host Name                     (removed)
Platform                      Linux (removed) 5.17.0-
                              0.rc7.20220311git79b00034e9dc.120.fc37.x86_64 #1
                              SMP PREEMPT Fri Mar 11 19:41:52 UTC 2022 x86_64
                              x86_64
Alert Count                   3
First Seen                    2022-03-14 21:53:30 +05
Last Seen                     2022-03-14 23:59:52 +05
Local ID                      2fd96aef-db23-4bd6-819d-383c6aae39bf

Raw Audit Messages
type=AVC msg=audit(1647284392.6:1484): avc:  denied  { getattr } for  pid=347262 comm="waydroid" path="/dev/binderfs/anbox-binder" dev="binder" ino=7 scontext=system_u:system_r:init_t:s0 tcontext=system_u:object_r:binderfs_t:s0 tclass=chr_file permissive=1


Hash: waydroid,init_t,binderfs_t,chr_file,getattr

Version-Release number of selected component:
selinux-policy-targeted-36.4-3.fc37.noarch

Additional info:
component:      selinux-policy
reporter:       libreport-2.17.1
hashmarkername: setroubleshoot
kernel:         5.17.0-0.rc7.20220311git79b00034e9dc.120.fc37.x86_64
type:           libreport

Comment 1 Zdenek Pytela 2022-03-15 07:50:19 UTC
Hi Mikhail,

I cannot find waydroid in Fedora. Where did you get it?

Comment 3 Zdenek Pytela 2022-03-15 10:33:52 UTC
I see, so it requires confining the service and adding policy for it.

Comment 4 Ben Cotton 2022-08-09 13:36:48 UTC
This bug appears to have been reported against 'rawhide' during the Fedora Linux 37 development cycle.
Changing version to 37.

Comment 5 Alessandro Astone 2023-01-03 11:12:20 UTC
We're starting to ship waydroid in fedora repos. It includes a waydroid-selinux package.
Under normal operation this issue will not happen, however there is still a path that triggers this audit but doesn't affect functionality.
That path is invoking a `sudo waydroid init` command without having previously started `waydroid-container.service` that would have triggered `dev-binderfs.mount` and properly exposed the binder devices.
`sudo waydroid init` is not the preferred mode of operation as by the official waydroid docs, and we're tracking auto-starting `waydroid-container.service` here: https://bugzilla.redhat.com/show_bug.cgi?id=2157810

Comment 6 Aoife Moloney 2023-11-23 00:10:02 UTC
This message is a reminder that Fedora Linux 37 is nearing its end of life.
Fedora will stop maintaining and issuing updates for Fedora Linux 37 on 2023-12-05.
It is Fedora's policy to close all bug reports from releases that are no longer
maintained. At that time this bug will be closed as EOL if it remains open with a
'version' of '37'.

Package Maintainer: If you wish for this bug to remain open because you
plan to fix it in a currently maintained version, change the 'version' 
to a later Fedora Linux version. Note that the version field may be hidden.
Click the "Show advanced fields" button if you do not see it.

Thank you for reporting this issue and we are sorry that we were not 
able to fix it before Fedora Linux 37 is end of life. If you would still like 
to see this bug fixed and are able to reproduce it against a later version 
of Fedora Linux, you are encouraged to change the 'version' to a later version
prior to this bug being closed.

Comment 7 Aoife Moloney 2023-12-05 21:05:24 UTC
Fedora Linux 37 entered end-of-life (EOL) status on None.

Fedora Linux 37 is no longer maintained, which means that it
will not receive any further security or bug fix updates. As a result we
are closing this bug.

If you can reproduce this bug against a currently maintained version of Fedora Linux
please feel free to reopen this bug against that version. Note that the version
field may be hidden. Click the "Show advanced fields" button if you do not see
the version field.

If you are unable to reopen this bug, please file a new report against an
active release.

Thank you for reporting this bug and we are sorry it could not be fixed.


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