Bug 993541
| Summary: | SELinux is preventing /usr/bin/perl from using the 'execmem' accesses on a process. | ||
|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | Robert Muil <robertmuil> |
| Component: | munin | Assignee: | d. johnson <drjohnson1> |
| Status: | CLOSED DUPLICATE | QA Contact: | Fedora Extras Quality Assurance <extras-qa> |
| Severity: | unspecified | Docs Contact: | |
| Priority: | unspecified | ||
| Version: | 19 | CC: | dominick.grift, drjohnson1, dwalsh, ingvar, jvanek, kwizart, mgrepl |
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | i686 | ||
| OS: | Unspecified | ||
| Whiteboard: | abrt_hash:90e45505d9f98eec17de9fb90bfb822ec96a696930c7be02ecd424e1d8616703 | ||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2013-11-16 15:10:14 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: | |||
Why does munin need execmem? This means it can write and execute the same memory, which is considered somewhat dangerous. Reporter, Can you show which plugins you are running? This is unusual for it to require execmem. Are all your graphs working, or is there one plugin's graphs that are failing? Description of problem: munin Additional info: reporter: libreport-2.1.7 hashmarkername: setroubleshoot kernel: 3.11.3-201.fc19.x86_64 type: libreport reproduced on x86_64 $ rpm -qa munin\* munin-2.0.17-6.fc19.noarch munin-common-2.0.17-6.fc19.noarch munin-node-2.0.17-6.fc19.noarch This seems to be triggered by munin-update every 5 min (so by the cron job). It would be very handy to know which plugin is causing this. Are you able to narrow down the list a bit? Which plugins do you have enabled? I've removed the nvidia driver and the error stopped, So this might be a dup of rhbz#1018083 *** This bug has been marked as a duplicate of bug 1018083 *** |
Description of problem: Installed munin and tried to access the webserver. I think it would be convenient to have SELinux rules to allow munin by default, it is not an unusual package to install on a system. At least good instructions on allowing the process. SELinux is preventing /usr/bin/perl from using the 'execmem' accesses on a process. ***** Plugin catchall (100. confidence) suggests *************************** If you believe that perl should be allowed execmem access on processes labeled munin_t 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: # grep munin-update /var/log/audit/audit.log | audit2allow -M mypol # semodule -i mypol.pp Additional Information: Source Context system_u:system_r:munin_t:s0-s0:c0.c1023 Target Context system_u:system_r:munin_t:s0-s0:c0.c1023 Target Objects [ process ] Source munin-update Source Path /usr/bin/perl Port <Unknown> Host (removed) Source RPM Packages perl-5.16.3-265.fc19.i686 Target RPM Packages Policy RPM selinux-policy-3.12.1-69.fc19.noarch Selinux Enabled True Policy Type targeted Enforcing Mode Enforcing Host Name (removed) Platform Linux (removed) 3.10.4-300.fc19.i686 #1 SMP Tue Jul 30 12:03:53 UTC 2013 i686 i686 Alert Count 1 First Seen 2013-08-06 09:00:03 CEST Last Seen 2013-08-06 09:00:03 CEST Local ID 7176ff29-74e6-4a86-84b4-093fbd96538e Raw Audit Messages type=AVC msg=audit(1375772403.642:769): avc: denied { execmem } for pid=19676 comm="munin-update" scontext=system_u:system_r:munin_t:s0-s0:c0.c1023 tcontext=system_u:system_r:munin_t:s0-s0:c0.c1023 tclass=process type=SYSCALL msg=audit(1375772403.642:769): arch=i386 syscall=mmap2 success=no exit=EACCES a0=455eb000 a1=21000 a2=7 a3=812 items=0 ppid=19675 pid=19676 auid=991 uid=991 gid=988 euid=991 suid=991 fsuid=991 egid=988 sgid=988 fsgid=988 ses=16 tty=(none) comm=munin-update exe=/usr/bin/perl subj=system_u:system_r:munin_t:s0-s0:c0.c1023 key=(null) Hash: munin-update,munin_t,munin_t,process,execmem Additional info: reporter: libreport-2.1.6 hashmarkername: setroubleshoot kernel: 3.10.4-300.fc19.i686 type: libreport Potential duplicate: bug 913294