[PATCH v2 3/5] apparmor: read only access to overcommit_memory

Christian Ehrhardt christian.ehrhardt at canonical.com
Tue Aug 4 15:32:12 UTC 2020


From: Jamie Strandboge <jamie at ubuntu.com>

Allow qemu to read @{PROC}/sys/vm/overcommit_memory.
This is read on guest start-up and (as read-only) not a
critical secret that has to stay hidden.

Signed-off-by: Christian Ehrhardt <christian.ehrhardt at canonical.com>
Signed-off-by: Stefan Bader <stefan.bader at canonical.com>
Signed-off-by: Jamie Strandboge <jamie at ubuntu.com>
---
 src/security/apparmor/libvirt-qemu | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/security/apparmor/libvirt-qemu b/src/security/apparmor/libvirt-qemu
index 2d08d6f7ad..b132cf0226 100644
--- a/src/security/apparmor/libvirt-qemu
+++ b/src/security/apparmor/libvirt-qemu
@@ -32,6 +32,7 @@
   # only modify its comm value or those in its thread group.
   owner @{PROC}/@{pid}/task/@{tid}/comm rw,
   @{PROC}/sys/kernel/cap_last_cap r,
+  @{PROC}/sys/vm/overcommit_memory r,
 
   # For hostdev access. The actual devices will be added dynamically
   /sys/bus/usb/devices/ r,
-- 
2.27.0




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