Ticket #11178 (closed defect: fixed)
Network Connection leak on Linux Host Kernel 3.2+
|Reported by:||Matthew Jurgens||Owned by:|
|Version:||VirtualBox 4.2.4||Keywords:||network connection leak conntrack linux kernel|
Base system working ok: Virtual Box 4.1.8 with kernel-PAE-3.2.3-2.fc16.i686 or Fedora 16 Kernel 3.4.11-1.fc16.i686.PAE Running a single virtual machine guest Windows XP SP3 with 1 CPU and 1200MB RAM, 1 bridged ethernet adapter.
Upgraded to Virtual Box 4.2.0. After several days the number of network connections as reported by conntrack -S continually increased to the maximum limit of the machine (65536). Normally the host machine would have a stable "conntrack -S" count of somewhere around 500-600 connections, even after running for months.
Tried combinations of Virtual Box 4.2.0, 4.2.2 and 4.2.4 with kernel-PAE-3.2.3-2.fc16.i686, kernel-PAE-3.4.11-1.fc16.i686 and kernel-PAE-3.6.2-1.fc16.i686. Any combination with 4.2.x resulted in the network connection leak.