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Bug 1978020

Summary:	selinux-policy-sandbox broken after update to Version 34.12 Release 1.fc34
Product:	[Fedora] Fedora	Reporter:	Timo Trinks <ttrinks>
Component:	selinux-policy	Assignee:	Zdenek Pytela <zpytela>
Status:	NEW ---	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	urgent	Docs Contact:
Priority:	unspecified
Version:	34	CC:	dwalsh, grepl.miroslav, lvrabec, mmalik, omosnace, vmojzis, zpytela
Target Milestone:	---
Target Release:	---
Hardware:	x86_64
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:		Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Timo Trinks 2021-07-01 00:00:21 UTC

Description of problem:

After upgrading to "selinux-policy-sandbox-34.11-1.fc34.noarch" on Fedora 34 running Firefox in sandbox now fails with:

<snip>

[user@host:~()]$ sandbox -X -t sandbox_net_t -t sandbox_web_t -w 1280x1024 firefox
dbus[13634]: Unable to set up transient service directory: Failed to create directory /run/user/1000/dbus-1: Permission denied

dbus-daemon[13634]: Cannot setup inotify for '/usr/share/dbus-1/session.d'; error 'Permission denied'
/usr/bin/firefox: line 196: getenforce: command not found
/usr/bin/firefox: line 196: [: !=: unary operator expected
Unable to init server: Could not connect: Connection refused
Error: cannot open display: :2

<snap>

Version-Release number of selected component (if applicable):

Version: 34.12
Release: 1.fc34

How reproducible:

Always

Steps to Reproduce:
1. run "sandbox -X -t sandbox_net_t -t sandbox_web_t -w 1280x1024 firefox" on Fedora 34 with selinux-policy-sandbox-34.12-1.fc34.noarch installed
2.
3.

Actual results:

<snip>

[user@host:~()]$ sandbox -X -t sandbox_net_t -t sandbox_web_t -w 1280x1024 firefox
dbus[13634]: Unable to set up transient service directory: Failed to create directory /run/user/1000/dbus-1: Permission denied

dbus-daemon[13634]: Cannot setup inotify for '/usr/share/dbus-1/session.d'; error 'Permission denied'
/usr/bin/firefox: line 196: getenforce: command not found
/usr/bin/firefox: line 196: [: !=: unary operator expected
Unable to init server: Could not connect: Connection refused
Error: cannot open display: :2

<snap>

Expected results:

Be able to run Firefox via SELinux Sandbox.

Additional info:

Comment 1 Timo Trinks 2021-07-01 00:36:13 UTC

To add to this:

After downgrading to selinux-policy-sandbox-34-1.fc34.noarch and relabelling the file system via /.autorelabel "sandbox -X -t sandbox_net_t -t sandbox_web_t -w 1280x1024 firefox" works (again).

Comment 2 Timo Trinks 2021-07-15 00:23:20 UTC

@zpytela - This appears to be a duplicate of https://bugzilla.redhat.com/show_bug.cgi?id=1960382

The following two temporary setsebools make running X applications via sandbox work again for me (tested with selinux-policy-sandbox-34.13-1.fc34.noarch):

- setsebool -P domain_can_mmap_files 1
- setsebool -P xserver_clients_write_xshm 1

After that "sandbox -X -t sandbox_net_t -t sandbox_web_t -w 1280x1024 firefox" would start a sandboxed Firefox again and not throw the errors listed above.