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Bug 1493047 - ProtectSystem protects /home instead of /usr
ProtectSystem protects /home instead of /usr
Status: CLOSED ERRATA
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: systemd (Show other bugs)
7.6
Unspecified Unspecified
unspecified Severity unspecified
: rc
: ---
Assigned To: Jan Synacek
Frantisek Sumsal
: EasyFix, Patch
: 1494430 (view as bug list)
Depends On:
Blocks: 1465901
  Show dependency treegraph
 
Reported: 2017-09-19 04:59 EDT by RobHost
Modified: 2018-04-10 07:23 EDT (History)
6 users (show)

See Also:
Fixed In Version: systemd-219-46.el7
Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of:
Environment:
Last Closed: 2018-04-10 07:22:48 EDT
Type: Bug
Regression: ---
Mount Type: ---
Documentation: ---
CRM:
Verified Versions:
Category: ---
oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---


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External Trackers
Tracker ID Priority Status Summary Last Updated
Github systemd/systemd/commit/d38e01dc96c5cae1986561c4f3bc7f760560bf2a None None None 2017-09-19 05:01 EDT
Red Hat Product Errata RHBA-2018:0711 None None None 2018-04-10 07:23 EDT

  None (edit)
Description RobHost 2017-09-19 04:59:12 EDT
Description of problem:

ProtectSystem sets /home read-only instead of /usr. This has been fixed upstream already, see "Additional Info".


Version-Release number of selected component (if applicable):
219


How reproducible:
Setting ProtectSystem for a service unit that writes to /home will result in IO error due to /home being read-only. /usr is not read-only and writes are possible altough it should be read-only instead


Steps to Reproduce:
1. Set ProtectSystem to true or full in systemd service unit that writes to /home.
2. Start the unit
3. See journal for error messages when the process tries to write to /home


Actual results:
/home read-only
/usr not protected and in the same state as without ProtectSystem set


Expected results:
/home accessible as usual for process
/usr read-only for process


Additional info:
This bug seems to be introduced in systemd v220[1] and fixed in v221[2].

[1] https://github.com/systemd/systemd/commit/ee818b89f4890b3a00e93772249fce810f60811e
[2] https://github.com/systemd/systemd/commit/d38e01dc96c5cae1986561c4f3bc7f760560bf2a
Comment 2 Jan Synacek 2017-09-19 06:43:56 EDT
https://github.com/lnykryn/systemd-rhel/pull/142
Comment 4 Lukáš Nykrýn 2017-10-02 04:51:10 EDT
fix merged to staging branch -> https://github.com/lnykryn/systemd-rhel/pull/142 -> post
Comment 5 Michal Hlavinka 2017-10-05 08:58:20 EDT
*** Bug 1494430 has been marked as a duplicate of this bug. ***
Comment 10 errata-xmlrpc 2018-04-10 07:22:48 EDT
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://access.redhat.com/errata/RHBA-2018:0711

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