Bug 759657

Summary: lots of avc's by squidguard
Product: [Fedora] Fedora Reporter: cblaauw <carstenblaauw>
Component: selinux-policy-targetedAssignee: Miroslav Grepl <mgrepl>
Status: CLOSED NOTABUG QA Contact: Ben Levenson <benl>
Severity: unspecified Docs Contact:
Priority: unspecified    
Version: 16CC: dwalsh
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Hardware: Unspecified   
OS: Unspecified   
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Fixed In Version: Doc Type: Bug Fix
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Clone Of: Environment:
Last Closed: 2011-12-04 21:43:01 UTC Type: ---
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description cblaauw 2011-12-02 23:09:53 UTC
Description of problem:

squidguard produces lots of avc messages in audit log

Version-Release number of selected component (if applicable):


How reproducible:
squidGuard-1.4.9.fc15
selinux-policy-targeted-3.10.0-61.fc16

Steps to Reproduce:
1. run squidGuard
2.
3.
  
Actual results:
avc's in audit log

Expected results:

no avc's

Additional info:
time->Wed Nov 30 18:29:07 2011
type=SYSCALL msg=audit(1322674147.699:278): arch=c000003e syscall=87 success=yes exit=0 a0=12417a0 a1=12417a0 a2=1 a3=1 items=0 ppid=1129 pid=16454 auid=4294967295 uid=23 gid=23 euid=23 suid=23 fsuid=23 egid=23 sgid=23 fsgid=23 tty=(none) ses=4294967295 comm="squidGuard" exe="/usr/bin/squidGuard" subj=system_u:system_r:squid_t:s0 key=(null)
type=AVC msg=audit(1322674147.699:278): avc:  denied  { unlink } for  pid=16454 comm="squidGuard" name="BDB16454" dev=dm-1 ino=935 scontext=system_u:system_r:squid_t:s0 tcontext=system_u:object_r:tmp_t:s0 tclass=file
----
time->Wed Nov 30 22:00:44 2011
type=SYSCALL msg=audit(1322686844.173:340): arch=c000003e syscall=2 success=yes exit=13 a0=1f4f7a0 a1=c2 a2=180 a3=1 items=0 ppid=1129 pid=19487 auid=4294967295 uid=23 gid=23 euid=23 suid=23 fsuid=23 egid=23 sgid=23 fsgid=23 tty=(none) ses=4294967295 comm="squidGuard" exe="/usr/bin/squidGuard" subj=system_u:system_r:squid_t:s0 key=(null)
type=AVC msg=audit(1322686844.173:340): avc:  denied  { read write open } for  pid=19487 comm="squidGuard" name="BDB19487" dev=dm-1 ino=515 scontext=system_u:system_r:squid_t:s0 tcontext=system_u:object_r:tmp_t:s0 tclass=file
type=AVC msg=audit(1322686844.173:340): avc:  denied  { create } for  pid=19487 comm="squidGuard" name="BDB19487" scontext=system_u:system_r:squid_t:s0 tcontext=system_u:object_r:tmp_t:s0 tclass=file
----
time->Wed Nov 30 22:00:44 2011
type=SYSCALL msg=audit(1322686844.173:341): arch=c000003e syscall=87 success=yes exit=0 a0=1f4f7a0 a1=1f4f7a0 a2=1 a3=1 items=0 ppid=1129 pid=19487 auid=4294967295 uid=23 gid=23 euid=23 suid=23 fsuid=23 egid=23 sgid=23 fsgid=23 tty=(none) ses=4294967295 comm="squidGuard" exe="/usr/bin/squidGuard" subj=system_u:system_r:squid_t:s0 key=(null)
type=AVC msg=audit(1322686844.173:341): avc:  denied  { unlink } for  pid=19487 comm="squidGuard" name="BDB19487" dev=dm-1 ino=515 scontext=system_u:system_r:squid_t:s0 tcontext=system_u:object_r:tmp_t:s0 tclass=file
----
time->Fri Dec  2 16:16:34 2011
type=SYSCALL msg=audit(1322838994.864:179): arch=c000003e syscall=2 success=yes exit=13 a0=1a467a0 a1=c2 a2=180 a3=1 items=0 ppid=1160 pid=12565 auid=4294967295 uid=23 gid=23 euid=23 suid=23 fsuid=23 egid=23 sgid=23 fsgid=23 tty=(none) ses=4294967295 comm="squidGuard" exe="/usr/bin/squidGuard" subj=system_u:system_r:squid_t:s0 key=(null)
type=AVC msg=audit(1322838994.864:179): avc:  denied  { read write open } for  pid=12565 comm="squidGuard" name="BDB12565" dev=dm-1 ino=986 scontext=system_u:system_r:squid_t:s0 tcontext=system_u:object_r:tmp_t:s0 tclass=file
type=AVC msg=audit(1322838994.864:179): avc:  denied  { create } for  pid=12565 comm="squidGuard" name="BDB12565" scontext=system_u:system_r:squid_t:s0 tcontext=system_u:object_r:tmp_t:s0 tclass=file
----
time->Fri Dec  2 16:16:34 2011
type=SYSCALL msg=audit(1322838994.865:180): arch=c000003e syscall=87 success=yes exit=0 a0=21077a0 a1=21077a0 a2=1 a3=1 items=0 ppid=1160 pid=12566 auid=4294967295 uid=23 gid=23 euid=23 suid=23 fsuid=23 egid=23 sgid=23 fsgid=23 tty=(none) ses=4294967295 comm="squidGuard" exe="/usr/bin/squidGuard" subj=system_u:system_r:squid_t:s0 key=(null)
type=AVC msg=audit(1322838994.865:180): avc:  denied  { unlink } for  pid=12566 comm="squidGuard" name="BDB12566" dev=dm-1 ino=1073 scontext=system_u:system_r:squid_t:s0 tcontext=system_u:object_r:tmp_t:s0 tclass=file

Comment 1 Daniel Walsh 2011-12-03 16:12:09 UTC
cblaauw  This looks like you might have some files mislabeled as tmp_t?

Usually squid content that needs to be written to is stored in /var.

restorecon -R -v /var

Should fix all labels in /var.

Did you setup squid to use /tmp?

Comment 2 cblaauw 2011-12-03 16:50:41 UTC
Hi Daniel,

squid is set up to use /var. I've ran 'restorecon -R -v /var', let's see if something changes.

Carsten

Comment 3 Miroslav Grepl 2011-12-04 21:43:01 UTC
Ok, if the problem still exists, please reopen the bug.