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Description of problem:

When oscap is executed with sudo, it can't write reports or ARFs or results if those files already exist and that have been created as temporary files.

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

openscap-1.3.5-13.el9.x86_64

How reproducible:


Steps to Reproduce:
1. run mktemp as a sudo-capable user
2. run a trivial scan, e.g. sudo oscap xccdf eval --report <filename of the newly-created tempfile> /usr/share/xml/scap/ssg/content/ssg-rhel9-ds.xml
3. watch for OpenSCAP Error: Could not open output file '<tempfile filename>' [/builddir/build/BUILD/openscap-1.3.5/src/source/xslt.c:92]

Actual results:

The temp file remains empty

Expected results:

Temp file is wrote to. Those temp files are technically writable, sudo echo 1234 > tempfile works, of course.

Additional info:

The issue can be reproduced on RHEL9, but not on RHEL8.

Hi, try to set sudo sysctl fs.protected_regular=0. https://lists.fedoraproject.org/archives/list/devel@lists.fedoraproject.org/thread/MXFHTD6SDBFTLHOFNGWZ3IJIL5D547YV/ could be relevant.

You can continue the discussion also in the upstream PR https://github.com/OpenSCAP/openscap/pull/1845

The pull request https://github.com/OpenSCAP/openscap/pull/1846 has been merged into upstream.

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 (new packages: openscap), 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-2022:2449