From mboxrd@z Thu Jan  1 00:00:00 1970
From: bugzilla-daemon-590EEB7GvNiWaY/ihj7yzEB+6BGkLq7r@public.gmane.org
Subject: [Bug 99911] New: ioperm is kept on fork
Date: Sat, 13 Jun 2015 17:36:52 +0000
Message-ID: <bug-99911-11311@https.bugzilla.kernel.org/>
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https://bugzilla.kernel.org/show_bug.cgi?id=99911

            Bug ID: 99911
           Summary: ioperm is kept on fork
           Product: Documentation
           Version: unspecified
          Hardware: All
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P1
         Component: man-pages
          Assignee: documentation_man-pages-ztI5WcYan/vQLgFONoPN62D2FQJk+8+b@public.gmane.org
          Reporter: alexhenrie24-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org
        Regression: No

Created attachment 179851
  --> https://bugzilla.kernel.org/attachment.cgi?id=179851&action=edit
fork-and-beep test program

`man ioperm` currently states "Permissions are not inherited by the child
created by fork(2); following a fork(2) the child must turn on those
permissions that it needs." This is not true. I do not know if it was true at
some point in the past, but ioperm is preserved across a fork at least as far
back as Linux 2.6.26.

A test program to demonstrate this behavior is attached.

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