| Summary: | SELinux is preventing /usr/libexec/kde4/kwin_opengl_test from using the 'execmem' accesses on a process. | ||
|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | Christopher Antila <christopher> |
| Component: | selinux-policy | Assignee: | Miroslav Grepl <mgrepl> |
| Status: | CLOSED NOTABUG | QA Contact: | Fedora Extras Quality Assurance <extras-qa> |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | 15 | CC: | dominick.grift, dwalsh, mgrepl |
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | x86_64 | ||
| OS: | Linux | ||
| Whiteboard: | setroubleshoot_trace_hash:3ea8d2073a6847a3514f1cb4f1f4c429758a050c5610c907c9d0ec656d48c78a | ||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2011-12-05 20:46:54 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
This report specifies Firefox, but kwin_opengl_test must happen for other reasons. I had this error in the Troubleshooter *before* I opened Firefox to, as it happens, search for a pre-existing version of this bug. It looks like it is allowed for now. # setsebool -P allow_execmem 1 To make sure. |
SELinux is preventing /usr/libexec/kde4/kwin_opengl_test from using the 'execmem' accesses on a process. ***** Plugin catchall_boolean (47.5 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_boolean (47.5 confidence) suggests ******************* If you want to allow unconfined executables to map a memory region as both executable and writable, this is dangerous and the executable should be reported in bugzilla Then you must tell SELinux about this by enabling the 'allow_execmem' boolean. Do setsebool -P allow_execmem 1 ***** Plugin catchall (6.38 confidence) suggests *************************** If you believe that kwin_opengl_test should be allowed execmem 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 kwin_opengl_tes /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 kwin_opengl_tes Source Path /usr/libexec/kde4/kwin_opengl_test Port <Unknown> Host (removed) Source RPM Packages firefox-8.0-3.fc15 Target RPM Packages Policy RPM selinux-policy-3.9.16-48.fc15 Selinux Enabled True Policy Type targeted Enforcing Mode Enforcing Host Name (removed) Platform Linux (removed) 2.6.41.1-1.fc15.x86_64 #1 SMP Fri Nov 11 21:36:28 UTC 2011 x86_64 x86_64 Alert Count 31 First Seen Sun 04 Dec 2011 05:01:50 PM EST Last Seen Sun 04 Dec 2011 05:04:02 PM EST Local ID 617c519e-e50f-4e89-8bb1-9f460d74cf0c Raw Audit Messages type=AVC msg=audit(1323036242.571:264): avc: denied { execmem } for pid=11839 comm="firefox" scontext=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 tcontext=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 tclass=process type=SYSCALL msg=audit(1323036242.571:264): arch=x86_64 syscall=mmap success=no exit=EACCES a0=0 a1=10000 a2=7 a3=22 items=0 ppid=11491 pid=11839 auid=1000 uid=1000 gid=1000 euid=1000 suid=1000 fsuid=1000 egid=1000 sgid=1000 fsgid=1000 tty=(none) ses=7 comm=firefox exe=/usr/lib64/firefox/firefox subj=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 key=(null) Hash: kwin_opengl_tes,unconfined_t,unconfined_t,process,execmem audit2allow #============= unconfined_t ============== #!!!! This avc is allowed in the current policy allow unconfined_t self:process execmem; audit2allow -R #============= unconfined_t ============== #!!!! This avc is allowed in the current policy allow unconfined_t self:process execmem;