Description of problem:
Hi,
Since upgrading to Fedora 40, I'm consistently encountering this when staring a vm from virtual machine manager.
SELinux is preventing rpc-virtqemud from 'setattr' accesses on the chr_file userfaultfd.

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

If you believe that rpc-virtqemud should be allowed setattr access on the userfaultfd 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 'rpc-virtqemud' --raw | audit2allow -M my-rpcvirtqemud
# semodule -X 300 -i my-rpcvirtqemud.pp

Additional Information:
Source Context                system_u:system_r:virtqemud_t:s0
Target Context                system_u:object_r:svirt_image_t:s0:c24,c824
Target Objects                userfaultfd [ chr_file ]
Source                        rpc-virtqemud
Source Path                   rpc-virtqemud
Port                          <Unknown>
Host                          (removed)
Source RPM Packages           
Target RPM Packages           
SELinux Policy RPM            selinux-policy-targeted-40.16-1.fc40.noarch
Local Policy RPM              selinux-policy-targeted-40.16-1.fc40.noarch
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Enforcing
Host Name                     (removed)
Platform                      Linux (removed) 6.8.7-300.fc40.x86_64 #1 SMP
                              PREEMPT_DYNAMIC Wed Apr 17 19:21:08 UTC 2024
                              x86_64
Alert Count                   1
First Seen                    2024-04-24 19:23:54 BST
Last Seen                     2024-04-24 19:23:54 BST
Local ID                      a60f2765-fe17-4a2b-86c0-f0adc8326f56

Raw Audit Messages
type=AVC msg=audit(1713983034.120:357): avc:  denied  { setattr } for  pid=12045 comm="rpc-virtqemud" name="userfaultfd" dev="tmpfs" ino=7 scontext=system_u:system_r:virtqemud_t:s0 tcontext=system_u:object_r:svirt_image_t:s0:c24,c824 tclass=chr_file permissive=1


Hash: rpc-virtqemud,virtqemud_t,svirt_image_t,chr_file,setattr

Version-Release number of selected component:
selinux-policy-targeted-40.16-1.fc40.noarch

Additional info:
reporter:       libreport-2.17.15
reason:         SELinux is preventing rpc-virtqemud from 'setattr' accesses on the chr_file userfaultfd.
package:        selinux-policy-targeted-40.16-1.fc40.noarch
component:      selinux-policy
hashmarkername: setroubleshoot
type:           libreport
kernel:         6.8.7-300.fc40.x86_64
component:      selinux-policy