Bug 666571
| Summary: | SELinux is preventing /usr/bin/systemsettings from using the 'execstack' accesses on a process. | ||
|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | medsoft_objects |
| Component: | selinux-policy | Assignee: | Miroslav Grepl <mgrepl> |
| Status: | CLOSED DUPLICATE | QA Contact: | Fedora Extras Quality Assurance <extras-qa> |
| Severity: | medium | Docs Contact: | |
| Priority: | low | ||
| Version: | 14 | CC: | dwalsh, mgrepl |
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | i386 | ||
| OS: | Linux | ||
| Whiteboard: | setroubleshoot_trace_hash:1838f045e1312b7911688f0a3c8a74459f7e89fcf9e219ee89b970373b872c74 | ||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2011-01-03 15:58:25 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: | |||
Unable to: 'You can generate a local policy module to allow this access.' 'Allow this access for now by executing: # grep /usr/bin/systemsettings /var/log/audit/audit.log | audit2allow -M mypol (1) # semodule - i mypol.pp (2) On attempting to execute (1) as root (su -) received the following error: compilation failed: mypol.te:6:ERROR 'syntax error' at token '' on line 6: /user/bin/checkmodule: errors encountered while parsing configuration /user/bin/checkmodule: loading policy configuration from mypol.te *** This bug has been marked as a duplicate of bug 652297 *** |
SELinux is preventing /usr/bin/systemsettings from using the 'execstack' accesses on a process. ***** Plugin allow_execstack (53.1 confidence) suggests ******************** If you do not think /usr/bin/systemsettings should need to map stack memory that is both writable and executable. Then you need to report a bug. This is a potentially dangerous access. Do contact your security administrator and report this issue. ***** Plugin catchall_boolean (42.6 confidence) suggests ******************* If you want to allow unconfined executables to make their stack executable. This should never, ever be necessary. Probably indicates a badly coded executable, but could indicate an attack. This executable should be reported in bugzilla Then you must tell SELinux about this by enabling the 'allow_execstack' boolean. Do setsebool -P allow_execstack 1 ***** Plugin catchall (5.76 confidence) suggests *************************** If you believe that systemsettings should be allowed execstack access on processes labeled unconfined_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 /usr/bin/systemsettings /var/log/audit/audit.log | audit2allow -M mypol # semodule -i mypol.pp Additional Information: Source Context unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1 023 Target Context unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1 023 Target Objects Unknown [ process ] Source systemsettings Source Path /usr/bin/systemsettings Port <Unknown> Host (removed) Source RPM Packages kdebase-workspace-4.5.4-1.fc14 Target RPM Packages Policy RPM selinux-policy-3.9.7-19.fc14 Selinux Enabled True Policy Type targeted Enforcing Mode Enforcing Host Name (removed) Platform Linux (removed) 2.6.35.10-74.fc14.i686.PAE #1 SMP Thu Dec 23 16:10:47 UTC 2010 i686 i686 Alert Count 2 First Seen Fri 31 Dec 2010 01:49:32 PM PST Last Seen Fri 31 Dec 2010 01:49:35 PM PST Local ID 3a248cef-6d12-45df-9d81-8db22eff1f0b Raw Audit Messages type=AVC msg=audit(1293832175.668:128): avc: denied { execstack } for pid=4029 comm="systemsettings" scontext=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 tcontext=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 tclass=process systemsettings,unconfined_t,unconfined_t,process,execstack type=SYSCALL msg=audit(1293832175.668:128): arch=i386 syscall=mprotect success=no exit=EACCES a0=bfa67000 a1=1000 a2=1000007 a3=bfa63d0c items=0 ppid=1 pid=4029 auid=500 uid=500 gid=500 euid=500 suid=500 fsuid=500 egid=500 sgid=500 fsgid=500 tty=(none) ses=4 comm=systemsettings exe=/usr/bin/systemsettings subj=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 key=(null) systemsettings,unconfined_t,unconfined_t,process,execstack #============= unconfined_t ============== #!!!! This avc can be allowed using the boolean 'allow_execstack' allow unconfined_t self:process execstack;