Bug 1413487
| Summary: | SELinux is preventing monitor-get-edi from 'mmap_zero' accesses on the memprotect Unknown. | ||
|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | Danie de Jager <danie.dejager> |
| Component: | selinux-policy | Assignee: | Lukas Vrabec <lvrabec> |
| Status: | CLOSED EOL | QA Contact: | Fedora Extras Quality Assurance <extras-qa> |
| Severity: | unspecified | Docs Contact: | |
| Priority: | unspecified | ||
| Version: | 25 | CC: | dominick.grift, dwalsh, lvrabec, mgrepl, plautrba, pmoore, ssekidde |
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | x86_64 | ||
| OS: | Unspecified | ||
| Whiteboard: | abrt_hash:112606f16dbeb989a2d44eb093074d34d10ccdb617ab843df69caa15f9d46376;VARIANT_ID=workstation; | ||
| Fixed In Version: | Doc Type: | If docs needed, set a value | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2017-12-12 10:55:37 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: | |||
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Description of problem: SELinux is preventing monitor-get-edi from 'mmap_zero' accesses on the memprotect Unknown. ***** Plugin mmap_zero (53.1 confidence) suggests ************************* If you do not think monitor-get-edi should need to mmap low memory in the kernel. Then you may be under attack by a hacker, this is a very dangerous access. Do contact your security administrator and report this issue. ***** Plugin catchall_boolean (42.6 confidence) suggests ****************** If you want to allow mmap to low allowed Then you must tell SELinux about this by enabling the 'mmap_low_allowed' boolean. You can read 'None' man page for more details. Do setsebool -P mmap_low_allowed 1 ***** Plugin catchall (5.76 confidence) suggests ************************** If you believe that monitor-get-edi should be allowed mmap_zero access on the Unknown memprotect 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 'monitor-get-edi' --raw | audit2allow -M my-monitorgetedi # semodule -X 300 -i my-monitorgetedi.pp Additional Information: Source Context system_u:system_r:system_cronjob_t:s0-s0:c0.c1023 Target Context system_u:system_r:system_cronjob_t:s0-s0:c0.c1023 Target Objects Unknown [ memprotect ] Source monitor-get-edi Source Path monitor-get-edi Port <Unknown> Host (removed) Source RPM Packages Target RPM Packages Policy RPM selinux-policy-3.13.1-225.6.fc25.noarch Selinux Enabled True Policy Type targeted Enforcing Mode Permissive Host Name (removed) Platform Linux (removed) 4.8.16-300.fc25.x86_64 #1 SMP Fri Jan 6 18:11:49 UTC 2017 x86_64 x86_64 Alert Count 4 First Seen 2017-01-14 06:52:11 SAST Last Seen 2017-01-16 07:01:49 SAST Local ID e3842eff-bfd0-4433-b7ed-9e57f526e4c9 Raw Audit Messages type=AVC msg=audit(1484542909.898:618): avc: denied { mmap_zero } for pid=6434 comm="monitor-get-edi" scontext=system_u:system_r:system_cronjob_t:s0-s0:c0.c1023 tcontext=system_u:system_r:system_cronjob_t:s0-s0:c0.c1023 tclass=memprotect permissive=1 Hash: monitor-get-edi,system_cronjob_t,system_cronjob_t,memprotect,mmap_zero 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