Description of problem:
The error gets thrown when navigating to an NFS share using autofs.
SELinux is preventing nfsidmap from 'read' accesses on the directory userdb.
***** Plugin catchall (100. confidence) suggests **************************
If you believe that nfsidmap should be allowed read access on the userdb 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 'nfsidmap' --raw | audit2allow -M my-nfsidmap
# semodule -X 300 -i my-nfsidmap.pp
Additional Information:
Source Context system_u:system_r:nfsidmap_t:s0
Target Context system_u:object_r:systemd_userdbd_runtime_t:s0
Target Objects userdb [ dir ]
Source nfsidmap
Source Path nfsidmap
Port <Unknown>
Host (removed)
Source RPM Packages
Target RPM Packages
SELinux Policy RPM selinux-policy-targeted-38.11-1.fc38.noarch
Local Policy RPM selinux-policy-targeted-38.11-1.fc38.noarch
Selinux Enabled True
Policy Type targeted
Enforcing Mode Enforcing
Host Name (removed)
Platform Linux (removed) 6.2.11-300.fc38.x86_64 #1 SMP
PREEMPT_DYNAMIC Thu Apr 13 20:27:09 UTC 2023
x86_64
Alert Count 10
First Seen 2023-04-21 22:55:30 CEST
Last Seen 2023-04-22 10:59:29 CEST
Local ID 700fac0f-174e-44ed-929f-9d651ed18cca
Raw Audit Messages
type=AVC msg=audit(1682153969.670:357): avc: denied { read } for pid=15563 comm="nfsidmap" name="userdb" dev="tmpfs" ino=43 scontext=system_u:system_r:nfsidmap_t:s0 tcontext=system_u:object_r:systemd_userdbd_runtime_t:s0 tclass=dir permissive=0
Hash: nfsidmap,nfsidmap_t,systemd_userdbd_runtime_t,dir,read
Version-Release number of selected component:
selinux-policy-targeted-38.11-1.fc38.noarch
Additional info:
reporter: libreport-2.17.9
reason: SELinux is preventing nfsidmap from 'read' accesses on the directory userdb.
package: selinux-policy-targeted-38.11-1.fc38.noarch
component: selinux-policy
hashmarkername: setroubleshoot
type: libreport
kernel: 6.2.11-300.fc38.x86_64
comment: The error gets thrown when navigating to an NFS share using autofs.
component: selinux-policy
Created attachment 1959117[details]
custom TE SELinux policy workaround
We ran into this issue too and I needed to add multiple allow statements in a custom policy to get nfsidmap working again. In our situation the user database is in an LDAP database that is accessed via sssd.
Description of problem: The error gets thrown when navigating to an NFS share using autofs. SELinux is preventing nfsidmap from 'read' accesses on the directory userdb. ***** Plugin catchall (100. confidence) suggests ************************** If you believe that nfsidmap should be allowed read access on the userdb 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 'nfsidmap' --raw | audit2allow -M my-nfsidmap # semodule -X 300 -i my-nfsidmap.pp Additional Information: Source Context system_u:system_r:nfsidmap_t:s0 Target Context system_u:object_r:systemd_userdbd_runtime_t:s0 Target Objects userdb [ dir ] Source nfsidmap Source Path nfsidmap Port <Unknown> Host (removed) Source RPM Packages Target RPM Packages SELinux Policy RPM selinux-policy-targeted-38.11-1.fc38.noarch Local Policy RPM selinux-policy-targeted-38.11-1.fc38.noarch Selinux Enabled True Policy Type targeted Enforcing Mode Enforcing Host Name (removed) Platform Linux (removed) 6.2.11-300.fc38.x86_64 #1 SMP PREEMPT_DYNAMIC Thu Apr 13 20:27:09 UTC 2023 x86_64 Alert Count 10 First Seen 2023-04-21 22:55:30 CEST Last Seen 2023-04-22 10:59:29 CEST Local ID 700fac0f-174e-44ed-929f-9d651ed18cca Raw Audit Messages type=AVC msg=audit(1682153969.670:357): avc: denied { read } for pid=15563 comm="nfsidmap" name="userdb" dev="tmpfs" ino=43 scontext=system_u:system_r:nfsidmap_t:s0 tcontext=system_u:object_r:systemd_userdbd_runtime_t:s0 tclass=dir permissive=0 Hash: nfsidmap,nfsidmap_t,systemd_userdbd_runtime_t,dir,read Version-Release number of selected component: selinux-policy-targeted-38.11-1.fc38.noarch Additional info: reporter: libreport-2.17.9 reason: SELinux is preventing nfsidmap from 'read' accesses on the directory userdb. package: selinux-policy-targeted-38.11-1.fc38.noarch component: selinux-policy hashmarkername: setroubleshoot type: libreport kernel: 6.2.11-300.fc38.x86_64 comment: The error gets thrown when navigating to an NFS share using autofs. component: selinux-policy