[Pkg-virtualbox-devel] Bug#780939: virtualbox-dkms does not work for backported kernels.

[dE]

Package: virtualbox-dkms
Version: 4.3.18-dfsg-2~bpo70+1
Severity: important

virtualbox-dkms does not work for backported kernels.

# dpkg-reconfigure virtualbox-dkms
------------------------------
Deleting module version: 4.3.18
completely from the DKMS tree.
------------------------------
Done.
Loading new virtualbox-4.3.18 DKMS files...
Building only for 3.16-0.bpo.2-amd64
Module build for the currently running kernel was skipped since the
kernel source for this kernel does not seem to be installed.
[ ok ] Stopping VirtualBox kernel modules.
[FAIL] Starting VirtualBox kernel modules[....] No suitable module for 
running kernel found ... failed!
  failed!
invoke-rc.d: initscript virtualbox, action "restart" failed.

# aptitude show linux-headers-`uname -r`
Package: linux-headers-3.16-0.bpo.2-amd64
New: yes
State: installed
Automatically installed: no
Version: 3.16.3-2~bpo70+1
Priority: optional
Section: kernel
Maintainer: Debian Kernel Team <debian-kernel at lists.debian.org>
Architecture: amd64
Uncompressed Size: 2346 k
Depends: linux-headers-3.16-0.bpo.2-common (= 3.16.3-2~bpo70+1), 
linux-kbuild-3.16, linux-compiler-gcc-4.6-x86
Description: Header files for Linux 3.16-0.bpo.2-amd64
  This package provides the architecture-specific kernel header files 
for Linux kernel 3.16-0.bpo.2-amd64, generally used
  for building out-of-tree kernel modules.  These files are going to be 
installed into
  /usr/src/linux-headers-3.16-0.bpo.2-amd64, and can be used for 
building modules that load into the kernel provided by the
  linux-image-3.16-0.bpo.2-amd64 package.
Homepage: https://www.kernel.org/