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DescriptionDustin C. Hatch
2015-10-29 14:59:33 UTC
Description of problem:
When the system is using the MLS SELinux policy, the squid.service unit fails to start:
systemd[1]: Starting Squid caching proxy...
cache_swap.sh[2119]: init_cache_dir /var/cache/squid... /usr/libexec/squid/cache_swap.sh: line 14: /var/log/squid/squid.out: Permission denied
The problem is this AVC:
type=AVC msg=audit(1446129156.681:889): avc: denied { write } for pid=2124 comm="cache_swap.sh" name="squid" dev="xvda1" ino=8722141 scontext=system_u:system_r:init_t:s0-s15:c0.c1023 tcontext=system_u:object_r:squid_log_t:s0 tclass=dir
Version-Release number of selected component (if applicable):
squid-3.3.8-12.el7_0.x86_64
How reproducible:
Always
Steps to Reproduce:
1. Enable SELinux MLS
2. Start squid.service
Actual results:
Squid fails to start because cache_swap.sh does not run
Expected results:
cache_swap.sh should execute successfully even under SELinux MLS, and squid should start
Additional info:
Fixing this problem is trivial:
chcon -t squid_exec_t /usr/libexec/squid/cache_swap.sh
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-2016-2283.html
Description of problem: When the system is using the MLS SELinux policy, the squid.service unit fails to start: systemd[1]: Starting Squid caching proxy... cache_swap.sh[2119]: init_cache_dir /var/cache/squid... /usr/libexec/squid/cache_swap.sh: line 14: /var/log/squid/squid.out: Permission denied The problem is this AVC: type=AVC msg=audit(1446129156.681:889): avc: denied { write } for pid=2124 comm="cache_swap.sh" name="squid" dev="xvda1" ino=8722141 scontext=system_u:system_r:init_t:s0-s15:c0.c1023 tcontext=system_u:object_r:squid_log_t:s0 tclass=dir Version-Release number of selected component (if applicable): squid-3.3.8-12.el7_0.x86_64 How reproducible: Always Steps to Reproduce: 1. Enable SELinux MLS 2. Start squid.service Actual results: Squid fails to start because cache_swap.sh does not run Expected results: cache_swap.sh should execute successfully even under SELinux MLS, and squid should start Additional info: Fixing this problem is trivial: chcon -t squid_exec_t /usr/libexec/squid/cache_swap.sh