[libvirt] [PATCH] apparmor: fix ptrace rules with kernel 4.18
Christian Ehrhardt
christian.ehrhardt at canonical.com
Fri Aug 24 06:12:11 UTC 2018
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>
---
examples/apparmor/usr.sbin.libvirtd | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/examples/apparmor/usr.sbin.libvirtd b/examples/apparmor/usr.sbin.libvirtd
index 80e348b7ee..f0ffc53008 100644
--- a/examples/apparmor/usr.sbin.libvirtd
+++ b/examples/apparmor/usr.sbin.libvirtd
@@ -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-*,
--
2.17.1
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