| Summary: | SELinux is preventing mprotheap from using the 'execheap' accesses on a process. | ||
|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | Jeremy Cline <jeremy> |
| Component: | selinux-policy | Assignee: | Miroslav Grepl <mgrepl> |
| Status: | CLOSED NOTABUG | QA Contact: | Fedora Extras Quality Assurance <extras-qa> |
| Severity: | unspecified | Docs Contact: | |
| Priority: | unspecified | ||
| Version: | 25 | CC: | chmelarz, dominick.grift, dwalsh, foss, jcline, juliux.pigface, lvrabec, mgrepl, plautrba, thebeardedhermit |
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | x86_64 | ||
| OS: | Unspecified | ||
| Whiteboard: | abrt_hash:5d6d12117143709ed7fcaa7dfe8f548257394e72f73ccbc91b3596b60d8573fd;VARIANT_ID=workstation; | ||
| Fixed In Version: | Doc Type: | If docs needed, set a value | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2016-09-06 22:36:24 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
Ah, it looks like this is caused by the kernel regression suite[0] and I failed to clear my SELinux denials. Sorry for the noise. [0] https://bugzilla.redhat.com/show_bug.cgi?id=1275007 Description of problem: I'm not sure when did this pop up. I booted the laptop after an update, logged to Xfce and ran a kernel regression test. Then I found the notify on the panel. Version-Release number of selected component: selinux-policy-3.13.1-218.fc25.noarch Additional info: reporter: libreport-2.8.0 hashmarkername: setroubleshoot kernel: 4.8.1-1.fc25.i686+PAE type: libreport Description of problem: Popped up during kernel regression test Version-Release number of selected component: selinux-policy-3.13.1-220.fc25.noarch Additional info: reporter: libreport-2.8.0 hashmarkername: setroubleshoot kernel: 4.8.4-301.fc25.x86_64 type: libreport Description of problem: Happened during kernel regression test run Version-Release number of selected component: selinux-policy-3.13.1-220.fc25.noarch Additional info: reporter: libreport-2.8.0 hashmarkername: setroubleshoot kernel: 4.8.6-300.fc25.x86_64 type: libreport Description of problem: - Ran kernel regression test - SELinux Alert appeared after paxtest passed and before posix_timers passed Version-Release number of selected component: selinux-policy-3.13.1-225.6.fc25.noarch Additional info: reporter: libreport-2.8.0 hashmarkername: setroubleshoot kernel: 4.8.16-300.fc25.x86_64 type: libreport |
Description of problem: This denial appears to be happening on boot. SELinux is preventing mprotheap from using the 'execheap' accesses on a process. ***** Plugin allow_execheap (53.1 confidence) suggests ******************** If you do not think mprotheap should need to map heap 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 selinuxuser to execheap Then you must tell SELinux about this by enabling the 'selinuxuser_execheap' boolean. You can read 'None' man page for more details. Do setsebool -P selinuxuser_execheap 1 ***** Plugin catchall (5.76 confidence) suggests ************************** If you believe that mprotheap should be allowed execheap 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: # ausearch -c 'mprotheap' --raw | audit2allow -M my-mprotheap # semodule -X 300 -i my-mprotheap.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 mprotheap Source Path mprotheap Port <Unknown> Host (removed) Source RPM Packages Target RPM Packages Policy RPM selinux-policy-3.13.1-211.fc25.noarch Selinux Enabled True Policy Type targeted Enforcing Mode Enforcing Host Name (removed) Platform Linux (removed) 4.8.0-0.rc4.git0.1.fc25.x86_64 #1 SMP Mon Aug 29 19:28:01 UTC 2016 x86_64 x86_64 Alert Count 1 First Seen 2016-09-05 10:40:27 EDT Last Seen 2016-09-05 10:40:27 EDT Local ID dca3625b-e022-4385-a008-deb5bcf2f6f9 Raw Audit Messages type=AVC msg=audit(1473086427.899:274): avc: denied { execheap } for pid=5074 comm="mprotheap" scontext=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 tcontext=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 tclass=process permissive=0 Hash: mprotheap,unconfined_t,unconfined_t,process,execheap Version-Release number of selected component: selinux-policy-3.13.1-211.fc25.noarch Additional info: reporter: libreport-2.7.2 hashmarkername: setroubleshoot kernel: 4.8.0-0.rc4.git0.1.fc25.x86_64 type: libreport Potential duplicate: bug 1367939