RHEL Engineering is moving the tracking of its product development work on RHEL 6 through RHEL 9 to Red Hat Jira (issues.redhat.com). If you're a Red Hat customer, please continue to file support cases via the Red Hat customer portal. If you're not, please head to the "RHEL project" in Red Hat Jira and file new tickets here. Individual Bugzilla bugs in the statuses "NEW", "ASSIGNED", and "POST" are being migrated throughout September 2023. Bugs of Red Hat partners with an assigned Engineering Partner Manager (EPM) are migrated in late September as per pre-agreed dates. Bugs against components "kernel", "kernel-rt", and "kpatch" are only migrated if still in "NEW" or "ASSIGNED". If you cannot log in to RH Jira, please consult article #7032570. That failing, please send an e-mail to the RH Jira admins at rh-issues@redhat.com to troubleshoot your issue as a user management inquiry. The email creates a ServiceNow ticket with Red Hat. Individual Bugzilla bugs that are migrated will be moved to status "CLOSED", resolution "MIGRATED", and set with "MigratedToJIRA" in "Keywords". The link to the successor Jira issue will be found under "Links", have a little "two-footprint" icon next to it, and direct you to the "RHEL project" in Red Hat Jira (issue links are of type "https://issues.redhat.com/browse/RHEL-XXXX", where "X" is a digit). This same link will be available in a blue banner at the top of the page informing you that that bug has been migrated.
Bug 1299306 - avc: denied { recvfrom } ...
Summary: avc: denied { recvfrom } ...
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 6
Classification: Red Hat
Component: selinux-policy
Version: 6.8
Hardware: x86_64
OS: Linux
medium
medium
Target Milestone: rc
: ---
Assignee: Lukas Vrabec
QA Contact: Milos Malik
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2016-01-18 03:43 UTC by xmu
Modified: 2017-03-21 09:44 UTC (History)
8 users (show)

Fixed In Version: selinux-policy-3.7.19-294.el6
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed: 2017-03-21 09:44:56 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHBA-2017:0627 0 normal SHIPPED_LIVE selinux-policy bug fix update 2017-03-21 12:29:23 UTC

Description xmu 2016-01-18 03:43:19 UTC 
Description of problem:
When I tested bz1293247, and ran some AF_UNIX regression bugs, find avc failed.
the job is: https://beaker.engineering.redhat.com/jobs/1192004
the log is :test_log-Setup-avc.log
Info: Searching AVC errors produced since 1452847980.31 (Fri Jan 15 03:53:00 2016)
Searching logs...
Running '/usr/bin/env LC_ALL=en_US.UTF-8 /sbin/ausearch -m AVC -m USER_AVC -m SELINUX_ERR -ts 01/15/2016 03:53:00 < /dev/null >/mnt/testarea/tmp.rhts-db-submit-result.XSZsU5 2>&1'
----
time->Fri Jan 15 03:53:00 2016
type=SYSCALL msg=audit(1452847980.547:43): arch=c000003e syscall=42 success=yes exit=0 a0=3 a1=7ffc5a9152a0 a2=10 a3=9 items=0 ppid=7179 pid=7204 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm="rhts-test-check" exe="/usr/bin/python" subj=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 key=(null)
type=AVC msg=audit(1452847980.547:43): avc:  denied  { recvfrom } for  pid=7204 comm="rhts-test-check" saddr=127.0.0.1 src=55415 daddr=127.0.0.1 dest=7084 netif=lo scontext=system_u:object_r:netlabel_peer_t:s0 tcontext=system_u:object_r:node_t:s0 tclass=node
type=AVC msg=audit(1452847980.547:43): avc:  denied  { ingress } for  pid=7204 comm="rhts-test-check" saddr=127.0.0.1 src=55415 daddr=127.0.0.1 dest=7084 netif=lo scontext=system_u:object_r:netlabel_peer_t:s0 tcontext=system_u:object_r:netif_t:s0 tclass=netif
Fail: AVC messages found.
Checking for errors...
Using stronger AVC checks.
	Define empty RHTS_OPTION_STRONGER_AVC parameter if this causes any problems.
Running 'cat /mnt/testarea/tmp.rhts-db-submit-result.XSZsU5 | /sbin/ausearch -m AVC -m SELINUX_ERR'
Fail: AVC messages found.
Running 'cat %s | /sbin/ausearch -m USER_AVC >/mnt/testarea/tmp.rhts-db-submit-result.Ggb5R5 2>&1'
Info: No AVC messages found.
/bin/grep 'avc: ' /mnt/testarea/dmesg.log | /bin/grep --invert-match TESTOUT.log
No AVC messages found in dmesg
Running '/usr/sbin/sestatus'
SELinux status:                 enabled
SELinuxfs mount:                /selinux
Current mode:                   permissive
Mode from config file:          enforcing
Policy version:                 24
Policy from config file:        targeted
Running 'rpm -q selinux-policy || true'
selinux-policy-3.7.19-287.el6.noarch

Version-Release number of selected component (if applicable):
selinux-policy-3.7.19-287.el6.noarch

How reproducible:

Steps to Reproduce:
run this job: https://beaker.engineering.redhat.com/jobs/1192004
1.change the "/distribution/kernelinstall" to which you want to test.
2.run the test


Actual results:
avc fail

Expected results:
avc pass

Additional info:
kernel 2.6.32-592.el6.x86_64 has no this issue: https://beaker.engineering.redhat.com/jobs/1192108
kernel 2.6.32-603.el6.x86_64 has this issue:
https://beaker.engineering.redhat.com/jobs/1193478
kernel 2.6.32-573.19.1.el6.x86_64 has this issue: https://beaker.engineering.redhat.com/jobs/1192004
Comment 2 Miroslav Grepl 2016-01-18 08:42:57 UTC 
We allow it in RHEL-7.

Could you try to add a local policy using

# ausearch -m avc -su netlabel_peer_t | audit2allow -M mypol
# semodule -i mypol.pp

Thank you.
Comment 15 Lukas Vrabec 2016-09-29 15:02:03 UTC 
What is state of this BZ? Do we have any actual AVCs? 

Thanks.
Comment 16 Milos Malik 2016-09-29 15:03:56 UTC 
I know only AVCs mentioned in comment#0 and comment#10.
Comment 24 errata-xmlrpc 2017-03-21 09:44:56 UTC 
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://rhn.redhat.com/errata/RHBA-2017-0627.html
Note You need to log in before you can comment on or make changes to this bug.