Bug 2418045 - SELinux is preventing bwrap from 'mounton' accesses on the directory /tmp.
Summary: SELinux is preventing bwrap from 'mounton' accesses on the directory /tmp.
Keywords:
Status: CLOSED DUPLICATE of bug 2415016
Alias: None
Product: Fedora
Classification: Fedora
Component: selinux-policy
Version: 43
Hardware: x86_64
OS: Unspecified
unspecified
unspecified
Target Milestone: ---
Assignee: Zdenek Pytela
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard: abrt_hash:3760feb4b3de0c9bfea2b290318...
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2025-12-01 16:28 UTC by Jose U.
Modified: 2025-12-03 16:38 UTC (History)
9 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed: 2025-12-03 16:38:43 UTC
Type: ---
Embargoed:


Attachments (Terms of Use)
File: description (1.85 KB, text/plain)
2025-12-01 16:28 UTC, Jose U.
no flags Details
File: os_info (647 bytes, text/plain)
2025-12-01 16:28 UTC, Jose U.
no flags Details

Description Jose U. 2025-12-01 16:28:36 UTC
Description of problem:
SELinux is preventing bwrap from 'mounton' accesses on the directory /tmp.

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

If you believe that bwrap should be allowed mounton access on the tmp directory 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 'bwrap' --raw | audit2allow -M my-bwrap
# semodule -X 300 -i my-bwrap.pp

Additional Information:
Source Context                unconfined_u:unconfined_r:thumb_t:s0-s0:c0.c1023
Target Context                system_u:object_r:tmp_t:s0
Target Objects                /tmp [ dir ]
Source                        bwrap
Source Path                   bwrap
Port                          <Unknown>
Host                          (removed)
Source RPM Packages           
Target RPM Packages           
SELinux Policy RPM            selinux-policy-targeted-42.17-1.fc43.noarch
Local Policy RPM              selinux-policy-targeted-42.17-1.fc43.noarch
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Enforcing
Host Name                     (removed)
Platform                      Linux (removed) 6.17.8-300.fc43.x86_64 #1 SMP
                              PREEMPT_DYNAMIC Fri Nov 14 01:47:12 UTC 2025
                              x86_64
Alert Count                   23
First Seen                    2025-12-01 17:13:37 CET
Last Seen                     2025-12-01 17:20:24 CET
Local ID                      d2941f60-801c-4250-b1ab-3c85c8aa4588

Raw Audit Messages
type=AVC msg=audit(1764606024.108:682): avc:  denied  { mounton } for  pid=76276 comm="bwrap" path="/tmp" dev="tmpfs" ino=1 scontext=unconfined_u:unconfined_r:thumb_t:s0-s0:c0.c1023 tcontext=system_u:object_r:tmp_t:s0 tclass=dir permissive=0


Hash: bwrap,thumb_t,tmp_t,dir,mounton

Version-Release number of selected component:
selinux-policy-targeted-42.17-1.fc43.noarch

Additional info:
reporter:       libreport-2.17.15
reason:         SELinux is preventing bwrap from 'mounton' accesses on the directory /tmp.
package:        selinux-policy-targeted-42.17-1.fc43.noarch
component:      selinux-policy
hashmarkername: setroubleshoot
type:           libreport
kernel:         6.17.8-300.fc43.x86_64
component:      selinux-policy

Comment 1 Jose U. 2025-12-01 16:28:38 UTC
Created attachment 2116984 [details]
File: description

Comment 2 Jose U. 2025-12-01 16:28:40 UTC
Created attachment 2116985 [details]
File: os_info

Comment 3 Jim Coonradt 2025-12-02 05:12:03 UTC
Having this same problem and it is not being addressed at all. I am getting it when just dealing with PDF files. It doesn't stop the action from happening but there are the constant SELinux alerts showing up.

Comment 4 Jim Coonradt 2025-12-02 18:55:18 UTC
Please see my comment over on the Fedora Discussion page. You can either set thumb_t to permissive or build the module. Both will work but one will still give the alerts. This appears to be an upstream issue with SELinux policy.

Comment 5 Zdenek Pytela 2025-12-03 16:38:43 UTC

*** This bug has been marked as a duplicate of bug 2415016 ***


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