Hi Richard,
On Fri, Nov 9, 2018 at 11:04 PM Richard Guy Briggs <rgb(a)redhat.com> wrote:
Hi Paul, Ondrej,
I've got a couple of patches with two different approaches to address
ghak100:
https://github.com/linux-audit/audit-kernel/issues/100
The patches work, but I've not posted them yet because I wanted to
update the audit-testsuite first to consistently test it.
I've written a test to automate the regression test to add to
audit-testsuite based on the reproducer recipe provided in ghak100. The
procedure in the description of ghak100 works, but I'm having some
trouble with the script. In particular, it is hanging the script on the
"kill 'SIGSTOP' $pid_fuse" line. Once it hangs, the main script, the
test subscript and both backgrounded processes (fuse and umount) are
still hanging around.
Here's the script:
https://github.com/linux-audit/audit-testsuite/compare/master...rgbriggs:...
Do either of you have any insight why this might be happenning and how
to fix or work around it?
A couple of minor notes:
- The $pid_fuse += 1 is necessary since it forks from the PID reported
to the shell.
I don't understand... why do you expect the forked PID to be exactly
one higher? This doesn't seem to be the case in general:
$ (echo $$; exec bash -c 'echo $$' &)
10995
13693
- The SIGSTOP is necessary to simulate the hung filesystem.
- RGB
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Richard Guy Briggs <rgb(a)redhat.com>
Sr. S/W Engineer, Kernel Security, Base Operating Systems
Remote, Ottawa, Red Hat Canada
IRC: rgb, SunRaycer
Voice: +1.647.777.2635, Internal: (81) 32635
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Ondrej Mosnacek <omosnace at redhat dot com>
Associate Software Engineer, Security Technologies
Red Hat, Inc.