Bug 575561 - SELinux is preventing /bin/nice "setsched" access. (mysqld_safe nice)
Summary: SELinux is preventing /bin/nice "setsched" access. (mysqld_safe nice)
Alias: None
Product: Fedora
Classification: Fedora
Component: selinux-policy
Version: 12
Hardware: x86_64
OS: Linux
Target Milestone: ---
Assignee: Miroslav Grepl
QA Contact: Fedora Extras Quality Assurance
Whiteboard: setroubleshoot_trace_hash:f4af0d6ac09...
Depends On:
TreeView+ depends on / blocked
Reported: 2010-03-21 13:46 UTC by Doncho Gunchev
Modified: 2010-03-30 02:12 UTC (History)
2 users (show)

Fixed In Version: selinux-policy-3.6.32-106.fc12
Doc Type: Bug Fix
Doc Text:
Clone Of:
Last Closed: 2010-03-30 02:12:09 UTC
Type: ---

Attachments (Terms of Use)

Description Doncho Gunchev 2010-03-21 13:46:53 UTC

SELinux is preventing /bin/nice "setsched" access .

Detailed Description:

[nice has a permissive type (mysqld_safe_t). This access was not denied.]

SELinux denied access requested by nice. It is not expected that this access is
required by nice and this access may signal an intrusion attempt. It is also
possible that the specific version or configuration of the application is
causing it to require additional access.

Allowing Access:

You can generate a local policy module to allow this access - see FAQ
(http://docs.fedoraproject.org/selinux-faq-fc5/#id2961385) Please file a bug

Additional Information:

Source Context                unconfined_u:system_r:mysqld_safe_t:s0
Target Context                unconfined_u:system_r:mysqld_safe_t:s0
Target Objects                None [ process ]
Source                        nice
Source Path                   /bin/nice
Port                          <Unknown>
Host                          (removed)
Source RPM Packages           coreutils-7.6-9.fc12
Target RPM Packages           
Policy RPM                    selinux-policy-3.6.32-99.fc12
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Enforcing
Plugin Name                   catchall
Host Name                     (removed)
Platform                      Linux (removed)
                     #1 SMP Wed Mar 3 04:40:41
                              UTC 2010 x86_64 x86_64
Alert Count                   8
First Seen                    Thu 18 Mar 2010 07:51:24 PM EET
Last Seen                     Thu 18 Mar 2010 07:55:38 PM EET
Local ID                      0cc7c259-1baa-4d0f-a97a-05bb6bd988ca
Line Numbers                  

Raw Audit Messages            

node=(removed) type=AVC msg=audit(1268934938.921:43117): avc:  denied  { setsched } for  pid=29076 comm="nice" scontext=unconfined_u:system_r:mysqld_safe_t:s0 tcontext=unconfined_u:system_r:mysqld_safe_t:s0 tclass=process

node=(removed) type=SYSCALL msg=audit(1268934938.921:43117): arch=c000003e syscall=141 success=yes exit=68719476864 a0=0 a1=0 a2=2 a3=2 items=0 ppid=28906 pid=29076 auid=1001 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=pts9 ses=1 comm="nice" exe="/bin/nice" subj=unconfined_u:system_r:mysqld_safe_t:s0 key=(null)

Hash String generated from  catchall,nice,mysqld_safe_t,mysqld_safe_t,process,setsched
audit2allow suggests:

#============= mysqld_safe_t ==============
allow mysqld_safe_t self:process setsched;

Comment 1 Doncho Gunchev 2010-03-21 13:49:22 UTC
This happens when you add to /etc/my.cnf the following option:

nice = 2

or any other value.

Comment 2 Daniel Walsh 2010-03-22 16:00:24 UTC
Miroslav add

allow mysqld_safe_t self:process { setsched getsched };

Comment 3 Miroslav Grepl 2010-03-23 11:53:07 UTC
Fixed in selinux-policy-3.6.32-106.fc12

Comment 4 Fedora Update System 2010-03-23 18:03:53 UTC
selinux-policy-3.6.32-106.fc12 has been submitted as an update for Fedora 12.

Comment 5 Doncho Gunchev 2010-03-23 22:35:26 UTC
Fix confirmed :-)

Comment 6 Fedora Update System 2010-03-24 23:31:01 UTC
selinux-policy-3.6.32-106.fc12 has been pushed to the Fedora 12 testing repository.  If problems still persist, please make note of it in this bug report.
 If you want to test the update, you can install it with 
 su -c 'yum --enablerepo=updates-testing update selinux-policy'.  You can provide feedback for this update here: http://admin.fedoraproject.org/updates/selinux-policy-3.6.32-106.fc12

Comment 7 Fedora Update System 2010-03-30 02:10:33 UTC
selinux-policy-3.6.32-106.fc12 has been pushed to the Fedora 12 stable repository.  If problems still persist, please make note of it in this bug report.

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