Bug 1729008

Summary: SELinux is preventing snap-update-ns from 'unmount' accesses on the filesystem .
Product: [Fedora] Fedora Reporter: a.wellbrock
Component: snapdAssignee: Zygmunt Krynicki <me>
Status: NEW --- QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: unspecified Docs Contact:
Priority: unspecified    
Version: 30CC: dwalsh, go-sig, lvrabec, me, mgrepl, ngompa13, plautrba, zpytela
Target Milestone: ---   
Target Release: ---   
Hardware: x86_64   
OS: Unspecified   
Whiteboard: abrt_hash:00d2fe8115e2c71920b36ef586b1ef6467c85808286fdf2d39c5f009a5e4b3e5;VARIANT_ID=workstation;
Fixed In Version: Doc Type: If docs needed, set a value
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description a.wellbrock 2019-07-11 08:00:26 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 'unmount' accesses on the filesystem .

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

If you believe that snap-update-ns should be allowed unmount access on the  filesystem 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                system_u:object_r:tmpfs_t:s0
Target Objects                 [ filesystem ]
Source                        snap-update-ns
Source Path                   snap-update-ns
Port                          <Unknown>
Host                          (removed)
Source RPM Packages           
Target RPM Packages           
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                      80ee0365-255a-4ba8-9e79-0c04cb8f6ef7

Raw Audit Messages
type=AVC msg=audit(1562745225.943:1588): avc:  denied  { unmount } for  pid=26270 comm="snap-update-ns" scontext=system_u:system_r:snappy_mount_t:s0 tcontext=system_u:object_r:tmpfs_t:s0 tclass=filesystem permissive=1

Hash: snap-update-ns,snappy_mount_t,tmpfs_t,filesystem,unmount

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