Bug 739346 - SELinux is preventing /usr/sbin/pptp from using the 'signal' accesses on a process.
Summary: SELinux is preventing /usr/sbin/pptp from using the 'signal' accesses on a pr...
Alias: None
Product: Fedora
Classification: Fedora
Component: selinux-policy
Version: 15
Hardware: i386
OS: Linux
Target Milestone: ---
Assignee: Miroslav Grepl
QA Contact: Fedora Extras Quality Assurance
Whiteboard: setroubleshoot_trace_hash:99ca496b6cb...
Depends On:
TreeView+ depends on / blocked
Reported: 2011-09-17 23:04 UTC by Nikolaus Waxweiler
Modified: 2011-12-04 02:35 UTC (History)
3 users (show)

Fixed In Version: selinux-policy-3.9.16-48.fc15
Doc Type: Bug Fix
Doc Text:
Clone Of:
Last Closed: 2011-12-04 02:35:42 UTC

Attachments (Terms of Use)

Description Nikolaus Waxweiler 2011-09-17 23:04:36 UTC
SELinux is preventing /usr/sbin/pptp from using the 'signal' accesses on a process.

*****  Plugin catchall (100. confidence) suggests  ***************************

If you believe that pptp should be allowed signal access on processes labeled kernel_t by default.
Then you should report this as a bug.
You can generate a local policy module to allow this access.
allow this access for now by executing:
# grep pptpcm /var/log/audit/audit.log | audit2allow -M mypol
# semodule -i mypol.pp

Additional Information:
Source Context                system_u:system_r:pptp_t:s0
Target Context                system_u:system_r:kernel_t:s0
Target Objects                Unknown [ process ]
Source                        pptpcm
Source Path                   /usr/sbin/pptp
Port                          <Unbekannt>
Host                          (removed)
Source RPM Packages           pptp-1.7.2-12.fc15
Target RPM Packages           
Policy RPM                    selinux-policy-3.9.16-38.fc15
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Enforcing
Host Name                     (removed)
Platform                      Linux (removed) #1 SMP
                              Tue Aug 30 14:54:41 UTC 2011 i686 i686
Alert Count                   1
First Seen                    So 18 Sep 2011 00:56:04 CEST
Last Seen                     So 18 Sep 2011 00:56:04 CEST
Local ID                      2f7d5d74-d0f4-4d0a-9aa9-dd8b5601d59c

Raw Audit Messages
type=AVC msg=audit(1316300164.89:330): avc:  denied  { signal } for  pid=22036 comm="pptpcm" scontext=system_u:system_r:pptp_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process

type=SYSCALL msg=audit(1316300164.89:330): arch=i386 syscall=kill success=no exit=EACCES a0=10 a1=f a2=0 a3=92e3628 items=0 ppid=1 pid=22036 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm=pptpcm exe=/usr/sbin/pptp subj=system_u:system_r:pptp_t:s0 key=(null)

Hash: pptpcm,pptp_t,kernel_t,process,signal


#============= pptp_t ==============
allow pptp_t kernel_t:process signal;

audit2allow -R

#============= pptp_t ==============
allow pptp_t kernel_t:process signal;

Comment 1 Nikolaus Waxweiler 2011-09-17 23:14:55 UTC
I was trying to get NetworkManager to connect to my university's network via pptp VPN by using a dispatcher script, when this error popped up.

Comment 2 Daniel Walsh 2011-09-19 16:19:22 UTC
I guess we should allow it. We should back port the fix to RHEL6

Comment 3 Nikolaus Waxweiler 2011-09-19 17:40:03 UTC
I should add that this didn't pop up every time I tried to get the script to work, but rather once... No idea if this is more of a bug?!

Comment 4 Miroslav Grepl 2011-09-20 11:26:55 UTC
Fixed in -41.fc15 policy and added to F16, RHEL6

Comment 5 Fedora Update System 2011-11-16 16:17:29 UTC
selinux-policy-3.9.16-48.fc15 has been submitted as an update for Fedora 15.

Comment 6 Fedora Update System 2011-11-17 23:35:51 UTC
Package selinux-policy-3.9.16-48.fc15:
* should fix your issue,
* was pushed to the Fedora 15 testing repository,
* should be available at your local mirror within two days.
Update it with:
# su -c 'yum update --enablerepo=updates-testing selinux-policy-3.9.16-48.fc15'
as soon as you are able to.
Please go to the following url:
then log in and leave karma (feedback).

Comment 7 Fedora Update System 2011-12-04 02:35:42 UTC
selinux-policy-3.9.16-48.fc15 has been pushed to the Fedora 15 stable repository.  If problems still persist, please make note of it in this bug report.

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