Bug 608674
| Summary: | SELinux is preventing /sbin/microcode_ctl "write" access to device microcode. | ||
|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | jesseb |
| Component: | selinux-policy | Assignee: | Daniel Walsh <dwalsh> |
| Status: | CLOSED INSUFFICIENT_DATA | QA Contact: | Fedora Extras Quality Assurance <extras-qa> |
| Severity: | medium | Docs Contact: | |
| Priority: | low | ||
| Version: | 12 | CC: | dwalsh, mgrepl |
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | x86_64 | ||
| OS: | Linux | ||
| Whiteboard: | setroubleshoot_trace_hash:3b58be3d9cec87407e7d46eac2921af8917652ac306bf4eff777d8525cce9424 | ||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2010-11-03 12:49:50 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: | |||
The problem is a mislabeled /dev/microcode What does matchpathcon /dev/microcode Output? ls -lZ /dev/microcode This message is a reminder that Fedora 12 is nearing its end of life. Approximately 30 (thirty) days from now Fedora will stop maintaining and issuing updates for Fedora 12. It is Fedora's policy to close all bug reports from releases that are no longer maintained. At that time this bug will be closed as WONTFIX if it remains open with a Fedora 'version' of '12'. Package Maintainer: If you wish for this bug to remain open because you plan to fix it in a currently maintained version, simply change the 'version' to a later Fedora version prior to Fedora 12's end of life. Bug Reporter: Thank you for reporting this issue and we are sorry that we may not be able to fix it before Fedora 12 is end of life. If you would still like to see this bug fixed and are able to reproduce it against a later version of Fedora please change the 'version' of this bug to the applicable version. If you are unable to change the version, please add a comment here and someone will do it for you. Although we aim to fix as many bugs as possible during every release's lifetime, sometimes those efforts are overtaken by events. Often a more recent Fedora release includes newer upstream software that fixes bugs or makes them obsolete. The process we are following is described here: http://fedoraproject.org/wiki/BugZappers/HouseKeeping |
Summary: SELinux is preventing /sbin/microcode_ctl "write" access to device microcode. Detailed Description: [microcode_ctl has a permissive type (cpucontrol_t). This access was not denied.] SELinux has denied microcode_ctl "write" access to device microcode. microcode is mislabeled, this device has the default label of the /dev directory, which should not happen. All Character and/or Block Devices should have a label. You can attempt to change the label of the file using restorecon -v 'microcode'. If this device remains labeled device_t, then this is a bug in SELinux policy. Please file a bg report. If you look at the other similar devices labels, ls -lZ /dev/SIMILAR, and find a type that would work for microcode, you can use chcon -t SIMILAR_TYPE 'microcode', If this fixes the problem, you can make this permanent by executing semanage fcontext -a -t SIMILAR_TYPE 'microcode' If the restorecon changes the context, this indicates that the application that created the device, created it without using SELinux APIs. If you can figure out which application created the device, please file a bug report against this application. Allowing Access: Attempt restorecon -v 'microcode' or chcon -t SIMILAR_TYPE 'microcode' Additional Information: Source Context system_u:system_r:cpucontrol_t:s0 Target Context system_u:object_r:device_t:s0 Target Objects microcode [ chr_file ] Source microcode_ctl Source Path /sbin/microcode_ctl Port <Unknown> Host (removed) Source RPM Packages microcode_ctl-1.17-1.57.fc12 Target RPM Packages Policy RPM selinux-policy-3.6.32-118.fc12 Selinux Enabled True Policy Type targeted Enforcing Mode Enforcing Plugin Name device Host Name (removed) Platform Linux (removed) 2.6.32.14-127.fc12.x86_64 #1 SMP Fri May 28 04:30:39 UTC 2010 x86_64 x86_64 Alert Count 1 First Seen Mon 28 Jun 2010 08:52:24 AM EDT Last Seen Mon 28 Jun 2010 08:52:24 AM EDT Local ID 8d40cd24-ffc1-4ecb-98e0-85947c912723 Line Numbers Raw Audit Messages node=(removed) type=AVC msg=audit(1277729544.395:779): avc: denied { write } for pid=18033 comm="microcode_ctl" name="microcode" dev=devtmpfs ino=10257738 scontext=system_u:system_r:cpucontrol_t:s0 tcontext=system_u:object_r:device_t:s0 tclass=chr_file node=(removed) type=SYSCALL msg=audit(1277729544.395:779): arch=c000003e syscall=2 success=yes exit=4294967424 a0=602020 a1=1 a2=fdf a3=2e items=0 ppid=17997 pid=18033 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm="microcode_ctl" exe="/sbin/microcode_ctl" subj=system_u:system_r:cpucontrol_t:s0 key=(null) Hash String generated from device,microcode_ctl,cpucontrol_t,device_t,chr_file,write audit2allow suggests: #============= cpucontrol_t ============== allow cpucontrol_t device_t:chr_file write;