Bug 1729013 - SELinux is preventing snap-update-ns from 'write' accesses on the directory /.
Summary: SELinux is preventing snap-update-ns from 'write' accesses on the directory /.
Status: NEW
Alias: None
Product: Fedora
Classification: Fedora
Component: snapd
Version: 30
Hardware: x86_64
OS: Unspecified
Target Milestone: ---
Assignee: Zygmunt Krynicki
QA Contact: Fedora Extras Quality Assurance
Whiteboard: abrt_hash:7818e93a4c1fb3822fae820e64f...
Depends On:
TreeView+ depends on / blocked
Reported: 2019-07-11 08:03 UTC by a.wellbrock
Modified: 2019-07-11 09:00 UTC (History)
8 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Last Closed:

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Description a.wellbrock 2019-07-11 08:03:32 UTC
Description of problem:
This problem happens on Fedora 30, latest kernel, when I use the Gnome Store to remove the Snap-Package of Rambox.

I removed it, since the package seems not to work at all, at least I'm not able to start it, so I'm suspecting SELinux to be the culprit. A friend with who installed Fedora 30 from scratch does not appear to have this problem.
SELinux is preventing snap-update-ns from 'write' accesses on the directory /.

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

If you believe that snap-update-ns should be allowed write access on the  directory by default.
Then you should report this as a bug.
You can generate a local policy module to allow this access.
allow this access for now by executing:
# ausearch -c 'snap-update-ns' --raw | audit2allow -M my-snapupdatens
# semodule -X 300 -i my-snapupdatens.pp

Additional Information:
Source Context                system_u:system_r:snappy_mount_t:s0
Target Context                unconfined_u:object_r:user_tmp_t:s0
Target Objects                / [ dir ]
Source                        snap-update-ns
Source Path                   snap-update-ns
Port                          <Unknown>
Host                          (removed)
Source RPM Packages           
Target RPM Packages           filesystem-3.10-1.fc30.x86_64
Policy RPM                    selinux-policy-3.14.3-39.fc30.noarch
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Enforcing
Host Name                     (removed)
Platform                      Linux (removed) 5.1.15-300.fc30.x86_64 #1 SMP Tue
                              Jun 25 14:07:22 UTC 2019 x86_64 x86_64
Alert Count                   1
First Seen                    2019-07-10 09:53:45 CEST
Last Seen                     2019-07-10 09:53:45 CEST
Local ID                      dc75816a-66cb-4fdb-bd13-6a37dc7571fa

Raw Audit Messages
type=AVC msg=audit(1562745225.942:1584): avc:  denied  { write } for  pid=26270 comm="snap-update-ns" name="/" dev="tmpfs" ino=900406 scontext=system_u:system_r:snappy_mount_t:s0 tcontext=unconfined_u:object_r:user_tmp_t:s0 tclass=dir permissive=1

Hash: snap-update-ns,snappy_mount_t,user_tmp_t,dir,write

Version-Release number of selected component:

Additional info:
component:      selinux-policy
reporter:       libreport-2.10.0
hashmarkername: setroubleshoot
kernel:         5.1.15-300.fc30.x86_64
type:           libreport

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