Bug 240911
| Summary: | SELinux is preventing /usr/sbin/ntpd (ntpd_t) "write" to /var/log/pm-suspend.log (var_log_t). | ||
|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | Mauri Korkeala <mauri.korkeala> |
| Component: | pm-utils | Assignee: | Phil Knirsch <pknirsch> |
| Status: | CLOSED DUPLICATE | QA Contact: | |
| Severity: | low | Docs Contact: | |
| Priority: | medium | ||
| Version: | rawhide | CC: | opensource, rvokal |
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | i386 | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2007-09-20 00:18:15 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: | |||
restorecon -R -v /var/run/pm-suspend.log will fix the context on this file. The problem is in pm-utils and is being fixed in the next update to pm-utils. pm-utils currently removes the file and then recreates it loosing the file context. If the script does not remove it but only zeroes it out the file_context will be maintained. This way hal,ntpd will be able to write to it whether it was executed by hal, ntp or an unconfined domain, (In reply to comment #1) > restorecon -R -v /var/run/pm-suspend.log will fix the context on this file. The > problem is in pm-utils and is being fixed in the next update to pm-utils. Hm, I did not see that this bug was fixed in an earlier release of pm-utils, but it should be fixed now. In case I oversaw that it was already fixed, please tell me. *** This bug has been marked as a duplicate of 238068 *** |
Description of problem: While suspending and resuming the computer, I found following entry in the SELinux Troubleshooter: SELinux is preventing /usr/sbin/ntpd (ntpd_t) "write" to /var/log/pm-suspend.log (var_log_t). The SELinux type %TARGET_TYPE, is a generic type for all files in the directory and very few processes (SELinux Domains) are allowed to write to this SELinux type. This type of denial usual indicates a mislabeled file. By default a file created in a directory has the gets the context of the parent directory, but SELinux policy has rules about the creation of directories, that say if a process running in one SELinux Domain (D1) creates a file in a directory with a particular SELinux File Context (F1) the file gets a different File Context (F2). The policy usually allows the SELinux Domain (D1) the ability to write or append on (F2). But if for some reason a file (/var/log/pm-suspend.log) was created with the wrong context, this domain will be denied. The usual solution to this problem is to reset the file context on the target file, restorecon -v /var/log/pm-suspend.log. If the file context does not change from var_log_t, then this is probably a bug in policy. Please file a bug report against the selinux-policy package. If it does change, you can try your application again to see if it works. The file context could have been mislabeled by editing the file or moving the file from a different directory, if the file keeps getting mislabeled, check the init scripts to see if they are doing something to mislabel the file. Allowing Access You can attempt to fix file context by executing restorecon -v /var/log/pm-suspend.logThe following command will allow this access:restorecon /var/log/pm-suspend.log Additional Information Source Context: root:system_r:ntpd_t Target Context: root:object_r:var_log_t Target Objects: /var/log/pm-suspend.log [ file ] Affected RPM Packages: ntp-4.2.4p0-2.fc7 [application]pm-utils-0.99.3-5.fc7 [target] Policy RPM: selinux-policy-2.6.4-6.fc7 Selinux Enabled: True Policy Type: targeted MLS Enabled: True Enforcing Mode: Enforcing Plugin Name: plugins.mislabeled_file Host Name: localhost.localdomain Platform: Linux localhost.localdomain 2.6.21-1.3167.fc7 #1 SMP Thu May 17 23:05:53 EDT 2007 i686 i686 Alert Count: 1 First Seen: Tue 22 May 2007 10:00:58 PM EEST Last Seen: Tue 22 May 2007 10:31:27 PM EEST Local ID: d2d966c6-60c5-4876-9c6c-b13f1efe69ab Line Numbers: Raw Audit Messages :avc: denied { write } for comm="ntpd" dev=dm-0 egid=0 euid=0 exe="/usr/sbin/ntpd" exit=0 fsgid=0 fsuid=0 gid=0 items=0 name="pm-suspend.log" path="/var/log/pm-suspend.log" pid=3118 scontext=root:system_r:ntpd_t:s0 sgid=0 subj=root:system_r:ntpd_t:s0 suid=0 tclass=file tcontext=root:object_r:var_log_t:s0 tty=(none) uid=0 Version-Release number of selected component (if applicable): Running current rawhide, kernel-2.6.21-1.3167.fc7