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https://gitlab.freedesktop.org/dbus/dbus/-/issues/198
https://gitlab.freedesktop.org/dbus/dbus/-/commit/6072f8b24153d844a3033108a17bcd0c1a967816
Currently, if the "dbus" security class or the associated AV doesn't
exist, dbus-daemon fails to initialize and exits immediately. Also the
security classes or access vector cannot be reordered in the policy.
This can be a problem for people developing their own policy or trying
to access a machine where, for some reasons, there is not policy defined
at all.
The code here copy the behaviour of the selinux_check_access() function.
We cannot use this function here as it doesn't allow us to define the
AVC entry reference.
See the discussion at https://marc.info/?l=selinux&m=152163374332372&w=2
Signed-off-by: Nisha Parrakat <nishaparrakat@gmail.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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Nisha Parrakat