Bug 1554396
| Summary: | SELinux is preventing dmesg from 'map' accesses on the file /etc/ld.so.cache. | ||
|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | Mark Tinberg <mtinberg> |
| Component: | selinux-policy | Assignee: | Lukas Vrabec <lvrabec> |
| Status: | CLOSED DUPLICATE | QA Contact: | Fedora Extras Quality Assurance <extras-qa> |
| Severity: | unspecified | Docs Contact: | |
| Priority: | unspecified | ||
| Version: | 27 | CC: | dwalsh, lvrabec, mgrepl, plautrba, pmoore |
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | x86_64 | ||
| OS: | Unspecified | ||
| Whiteboard: | abrt_hash:d4f321ef67a5790eedb484aceef3419579b193f3ff1f3b135f24d9d20efaa6cb;VARIANT_ID=workstation; | ||
| Fixed In Version: | Doc Type: | If docs needed, set a value | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2018-03-24 18:55:42 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
*** This bug has been marked as a duplicate of bug 1543153 *** |
Description of problem: Applied most recent updates to F27 using GNOME Software Center, after reboot several utilites reported this error Several utilities reported the same error after the most recent round of updates on F27 SELinux is preventing dmesg from 'map' accesses on the file /etc/ld.so.cache. ***** Plugin restorecon (94.8 confidence) suggests ************************ If you want to fix the label. /etc/ld.so.cache default label should be ld_so_cache_t. Then you can run restorecon. The access attempt may have been stopped due to insufficient permissions to access a parent directory in which case try to change the following command accordingly. Do # /sbin/restorecon -v /etc/ld.so.cache ***** Plugin catchall_labels (5.21 confidence) suggests ******************* If you want to allow dmesg to have map access on the ld.so.cache file Then you need to change the label on /etc/ld.so.cache Do # semanage fcontext -a -t FILE_TYPE '/etc/ld.so.cache' where FILE_TYPE is one of the following: dmesg_exec_t, fonts_cache_t, fonts_t, ld_so_cache_t, ld_so_t, lib_t, locale_t, prelink_exec_t, textrel_shlib_t. Then execute: restorecon -v '/etc/ld.so.cache' ***** Plugin catchall (1.44 confidence) suggests ************************** If you believe that dmesg should be allowed map access on the ld.so.cache 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 'dmesg' --raw | audit2allow -M my-dmesg # semodule -X 300 -i my-dmesg.pp Additional Information: Source Context system_u:system_r:dmesg_t:s0-s0:c0.c1023 Target Context system_u:object_r:etc_t:s0 Target Objects /etc/ld.so.cache [ file ] Source dmesg Source Path dmesg Port <Unknown> Host (removed) Source RPM Packages Target RPM Packages glibc-2.26-26.fc27.x86_64 glibc-2.26-26.fc27.i686 Policy RPM selinux-policy-3.13.1-283.26.fc27.noarch Selinux Enabled True Policy Type targeted Enforcing Mode Enforcing Host Name (removed) Platform Linux (removed) 4.15.6-300.fc27.x86_64 #1 SMP Mon Feb 26 18:43:03 UTC 2018 x86_64 x86_64 Alert Count 1 First Seen 2018-03-12 10:01:30 CDT Last Seen 2018-03-12 10:01:30 CDT Local ID faeba518-14c7-4ef4-9cf5-bee6248fddc7 Raw Audit Messages type=AVC msg=audit(1520866890.764:257): avc: denied { map } for pid=19083 comm="dmesg" path="/etc/ld.so.cache" dev="dm-0" ino=33293592 scontext=system_u:system_r:dmesg_t:s0-s0:c0.c1023 tcontext=system_u:object_r:etc_t:s0 tclass=file permissive=0 Hash: dmesg,dmesg_t,etc_t,file,map Version-Release number of selected component: selinux-policy-3.13.1-283.26.fc27.noarch Additional info: component: selinux-policy reporter: libreport-2.9.3 hashmarkername: setroubleshoot kernel: 4.15.6-300.fc27.x86_64 type: libreport