[libvirt] [PATCH] apparmor: fix ptrace rules with kernel 4.18

[Erik Skultety]

On Fri, Aug 24, 2018 at 08:12:11AM +0200, Christian Ehrhardt wrote:
> Due to kernel upstream change 338d0be4 ("apparmor: fix ptrace read check")
> libvirt now hits apparmor denies like:
>   apparmor="DENIED" operation="ptrace" profile="/usr/sbin/libvirtd"
>   pid=4409 comm="libvirtd" requested_mask="read" denied_mask="read"
>   peer="libvirt-14e92a75-7668-4b97-8f92-322fc1b9c78a"
>
> Extend the ptrace rule to also allow 'ptrace (read)' for libvirtd to work
> with these newer kernels.
>
> Fixes: https://bugs.launchpad.net/bugs/1788603
>
> Reported-by: Thadeu Lima de Souza Cascardo <thadeu.cascardo at canonical.com>
> Signed-off-by: Christian Ehrhardt <christian.ehrhardt at canonical.com>
> ---
Reviewed-by: Erik Skultety <eskultet at redhat.com>