[Bug 1057024] Re: kvm kernel module always loaded, without setting /dev/kvm permissions

[Steve Langasek]

The change that's been uploaded to precise for this is:

diff -u qemu-kvm-1.0+noroms/debian/qemu-kvm.postinst qemu-kvm-1.0+noroms/debian/qemu-kvm.postinst
--- qemu-kvm-1.0+noroms/debian/qemu-kvm.postinst
+++ qemu-kvm-1.0+noroms/debian/qemu-kvm.postinst
@@ -16,2 +16,15 @@
-exit 0
+# if we just installed the package, udev rules aren't picked up yet,
+# so udev created the device (/dev/kvm) with default permissions.
+# Fix it here, but only if the perms are like default.
+# (See #607391)
+
+if [ -c /dev/kvm -a ! -L /dev/kvm ] && [ .$(stat -c %u%g /dev/kvm) = .00 ]
+then
+  chgrp kvm /dev/kvm
+  chmod 0660 /dev/kvm
+  if type setfacl > /dev/null 2>&1; then
+     setfacl -m g::rw /dev/kvm
+  fi
+fi
 
+exit 0

Please don't do this by hand.  The correct way to do this in a
maintainer script should be by calling:

    udevadm trigger --subsystem-match=misc --action=change

See xserver-xorg-input-vmmouse, udisks2 for examples of this.

Rejecting this SRU for now.  If there's some reason 'udevadm trigger'
can't be used here, we can un-reject the previous upload; otherwise,
please reupload using udevadm.

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https://bugs.launchpad.net/bugs/1057024

Title:
  kvm kernel module always loaded, without setting /dev/kvm permissions

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