Bug 2219542
| Summary: | SELinux is preventing /usr/bin/fwupdmgr from map access on the file /root/.cache/dconf/user. | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 9 | Reporter: | Joerg <jkastnin> |
| Component: | selinux-policy | Assignee: | Zdenek Pytela <zpytela> |
| Status: | CLOSED DUPLICATE | QA Contact: | Milos Malik <mmalik> |
| Severity: | unspecified | Docs Contact: | |
| Priority: | medium | ||
| Version: | 9.2 | CC: | lvrabec, mmalik, rhughes, zpytela |
| Target Milestone: | rc | Keywords: | Triaged |
| Target Release: | --- | ||
| Hardware: | Unspecified | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | If docs needed, set a value | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2023-07-14 08:12:27 UTC | Type: | Bug |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
# rpm -qa selinux\*
selinux-policy-38.1.17-1.el9.noarch
selinux-policy-targeted-38.1.17-1.el9.noarch
# matchpathcon /root/.cache/dconf/user
/root/.cache/dconf/user system_u:object_r:cache_home_t:s0
# sesearch -s insights_client_t -t cache_home_t -c file -p map -A
allow domain file_type:file map; [ domain_can_mmap_files ]:True
allow insights_client_t non_security_file_type:file { ioctl lock map open read };
#
The issue seems to be fixed already.
Seems to be resolved as a part of https://bugzilla.redhat.com/show_bug.cgi?id=2214581 *** This bug has been marked as a duplicate of bug 2214581 *** |
Description of problem: Every night when the `fwupdagent` runs it produces the log entry shown in the summary of this BZ. The complete sealert message is: ~~~ $ sudo sealert -l 41fff8c8-5296-4fdc-80ee-3276cb55142b SELinux is preventing /usr/bin/fwupdmgr from map access on the file /root/.cache/dconf/user. ***** Plugin catchall_boolean (89.3 confidence) suggests ****************** If you want to allow domain to can mmap files Then you must tell SELinux about this by enabling the 'domain_can_mmap_files' boolean. Do setsebool -P domain_can_mmap_files 1 ***** Plugin catchall (11.6 confidence) suggests ************************** If you believe that fwupdmgr should be allowed map access on the user 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 'fwupdagent' --raw | audit2allow -M my-fwupdagent # semodule -X 300 -i my-fwupdagent.pp Additional Information: Source Context system_u:system_r:insights_client_t:s0 Target Context system_u:object_r:cache_home_t:s0 Target Objects /root/.cache/dconf/user [ file ] Source fwupdagent Source Path /usr/bin/fwupdmgr Port <Unknown> Host host.example.com Source RPM Packages fwupd-1.8.10-2.el9.x86_64 Target RPM Packages SELinux Policy RPM selinux-policy-targeted-38.1.11-2.el9_2.3.noarch Local Policy RPM selinux-policy-targeted-38.1.11-2.el9_2.3.noarch Selinux Enabled True Policy Type targeted Enforcing Mode Enforcing Host Name host.example.com Platform Linux host.example.com 5.14.0-284.18.1.el9_2.x86_64 #1 SMP PREEMPT_DYNAMIC Wed May 31 10:39:18 EDT 2023 x86_64 x86_64 Alert Count 39 First Seen 2023-04-26 02:08:13 CEST Last Seen 2023-07-04 03:14:11 CEST Local ID 41fff8c8-5296-4fdc-80ee-3276cb55142b Raw Audit Messages type=AVC msg=audit(1688433251.557:834): avc: denied { map } for pid=33387 comm="fwupdagent" path="/root/.cache/dconf/user" dev="dm-1" ino=1310729 scontext=system_u:system_r:insights_client_t:s0 tcontext=system_u:object_r:cache_home_t:s0 tclass=file permissive=1 type=SYSCALL msg=audit(1688433251.557:834): arch=x86_64 syscall=mmap success=yes exit=140588147630080 a0=0 a1=1 a2=1 a3=1 items=0 ppid=33386 pid=33387 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm=fwupdagent exe=/usr/bin/fwupdmgr subj=system_u:system_r:insights_client_t:s0 key=(null) Hash: fwupdagent,insights_client_t,cache_home_t,file,map ~~~ I checked with the upstream project of fwupd and they can reproduce it and are sure this is a bug as fwupdmgr should be allowed map access on the user file by default. Version-Release number of selected component (if applicable): Source RPM Packages: fwupd-1.8.10-2.el9.x86_64 SELinux Policy RPM: selinux-policy-targeted-38.1.11-2.el9_2.3.noarch Local Policy RPM: selinux-policy-targeted-38.1.11-2.el9_2.3.noarch How reproducible: Recurs every night when the fwupdagent runs. Actual results: Entry in journalctl: SELinux is preventing /usr/bin/fwupdmgr from map access on the file /root/.cache/dconf/user. Expected results: fwupdmgr should be allowed map access on the user file by default. Additional info: Link to upstream discussion: https://github.com/fwupd/fwupd/discussions/5962