Bug 563884 - SELinux is preventing /usr/sbin/usbmuxd "read" access on stat.
Summary: SELinux is preventing /usr/sbin/usbmuxd "read" access on stat.
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Fedora
Classification: Fedora
Component: selinux-policy
Version: 12
Hardware: x86_64
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Miroslav Grepl
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard: setroubleshoot_trace_hash:649c7baaf91...
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2010-02-11 14:23 UTC by Matthew Garrett
Modified: 2013-01-10 07:48 UTC (History)
3 users (show)

Fixed In Version: selinux-policy-3.6.32-89.fc12
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2010-02-20 00:22:52 UTC
Type: ---
Embargoed:


Attachments (Terms of Use)

Description Matthew Garrett 2010-02-11 14:23:32 UTC
Summary:

SELinux is preventing /usr/sbin/usbmuxd "read" access on stat.

Detailed Description:

[SELinux is in permissive mode. This access was not denied.]

SELinux denied access requested by usbmuxd. It is not expected that this access
is required by usbmuxd 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
report.

Additional Information:

Source Context                system_u:system_r:usbmuxd_t:s0-s0:c0.c1023
Target Context                system_u:object_r:proc_t:s0
Target Objects                stat [ file ]
Source                        usbmuxd
Source Path                   /usr/sbin/usbmuxd
Port                          <Unknown>
Host                          (removed)
Source RPM Packages           usbmuxd-0.1.4-2.fc12
Target RPM Packages           
Policy RPM                    selinux-policy-3.6.32-82.fc12
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Permissive
Plugin Name                   catchall
Host Name                     (removed)
Platform                      Linux 2530p 2.6.31.9-174.fc12.x86_64 #1 SMP Mon
                              Dec 21 05:33:33 UTC 2009 x86_64 x86_64
Alert Count                   2
First Seen                    Thu 11 Feb 2010 08:40:46 AM EST
Last Seen                     Thu 11 Feb 2010 08:40:46 AM EST
Local ID                      150480fc-a5b8-4002-93e3-52e597478253
Line Numbers                  

Raw Audit Messages            

node=2530p type=AVC msg=audit(1265895646.5:41981): avc:  denied  { read } for  pid=3395 comm="usbmuxd" name="stat" dev=proc ino=4026531989 scontext=system_u:system_r:usbmuxd_t:s0-s0:c0.c1023 tcontext=system_u:object_r:proc_t:s0 tclass=file

node=2530p type=AVC msg=audit(1265895646.5:41981): avc:  denied  { open } for  pid=3395 comm="usbmuxd" name="stat" dev=proc ino=4026531989 scontext=system_u:system_r:usbmuxd_t:s0-s0:c0.c1023 tcontext=system_u:object_r:proc_t:s0 tclass=file

node=2530p type=SYSCALL msg=audit(1265895646.5:41981): arch=c000003e syscall=2 success=yes exit=9 a0=3e1d53ca65 a1=80000 a2=2803ff a3=1000 items=0 ppid=1 pid=3395 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm="usbmuxd" exe="/usr/sbin/usbmuxd" subj=system_u:system_r:usbmuxd_t:s0-s0:c0.c1023 key=(null)



Hash String generated from  catchall,usbmuxd,usbmuxd_t,proc_t,file,read
audit2allow suggests:libsepol.context_from_record: invalid security context: "system_u:system_r:usbmuxd_t:s0-s0:c0.c1023"
libsepol.context_from_record: could not create context structure
libsepol.context_from_string: could not create context structure
libsepol.sepol_context_to_sid: could not convert system_u:system_r:usbmuxd_t:s0-s0:c0.c1023 to sid
libsepol.context_from_record: invalid security context: "system_u:system_r:usbmuxd_t:s0-s0:c0.c1023"
libsepol.context_from_record: could not create context structure
libsepol.context_from_string: could not create context structure
libsepol.sepol_context_to_sid: could not convert system_u:system_r:usbmuxd_t:s0-s0:c0.c1023 to sid

Comment 1 Daniel Walsh 2010-02-11 18:36:09 UTC
Miroslav add


kernel_read_system_state(usbmuxd_t)

Comment 2 Miroslav Grepl 2010-02-11 20:19:22 UTC
Fixed in selinux-policy-3.6.32-88.fc12

Comment 3 Fedora Update System 2010-02-11 22:02:34 UTC
selinux-policy-3.6.32-89.fc12 has been submitted as an update for Fedora 12.
http://admin.fedoraproject.org/updates/selinux-policy-3.6.32-89.fc12

Comment 4 Fedora Update System 2010-02-13 00:41:50 UTC
selinux-policy-3.6.32-89.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/F12/FEDORA-2010-1836

Comment 5 Fedora Update System 2010-02-20 00:20:53 UTC
selinux-policy-3.6.32-89.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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