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apparmor: fix ptrace rules with kernel 4.18

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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@canonical.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
Acked-by: Jamie Strandboge <jamie@canonical.com>
Signed-off-by: Christian Ehrhardt <christian.ehrhardt@canonical.com>
This commit is contained in:
Christian Ehrhardt 2018-08-24 08:07:39 +02:00
parent 171aa72baa
commit 8741b94351
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GPG Key ID: BA3E29338280B242
1 changed files with 4 additions and 4 deletions
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8
examples/apparmor/usr.sbin.libvirtd
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@ -50,10 +50,10 @@
# for --p2p migrations
unix (send, receive) type=stream addr=none peer=(label=unconfined addr=none),
ptrace (trace) peer=unconfined,
ptrace (trace) peer=/usr/sbin/libvirtd,
ptrace (trace) peer=/usr/sbin/dnsmasq,
ptrace (trace) peer=libvirt-*,
ptrace (read,trace) peer=unconfined,
ptrace (read,trace) peer=/usr/sbin/libvirtd,
ptrace (read,trace) peer=/usr/sbin/dnsmasq,
ptrace (read,trace) peer=libvirt-*,
signal (send) peer=/usr/sbin/dnsmasq,
signal (read, send) peer=libvirt-*,