Re: [Full-disclosure] How to lock up a VirtualBox host machine with a guest using tracepath over virtio-net network interface

2013-06-27 Thread Źmicier Januszkiewicz
Well, I cannot reproduce the issue on 4.2.14, but there is nothing in change logs for that version that can be related to virtio-net. They might have done a silent fix for 4.1.x branch as well. Cheers, Z. 2013/6/27 Nick Boyce nick.bo...@gmail.com On 6/21/13, Thomas Dreibholz dre...@simula.no

Re: [Full-disclosure] How to lock up a VirtualBox host machine with a guest using tracepath over virtio-net network interface

2013-06-26 Thread Źmicier Januszkiewicz
Hi, Tested this on Windows 7 x64 host instead (no Linux box available atm); confirmed the issue (consumes CPU and kills the host network adapter). Can someone assign a CVE for this? Looks like this can be exploited to at least DoS other VMs on the same host. 2013/6/21 Thomas Dreibholz

Re: [Full-disclosure] How to lock up a VirtualBox host machine with a guest using tracepath over virtio-net network interface

2013-06-26 Thread Agostino Sarubbo
On Wednesday 26 June 2013 09:09:52 Źmicier Januszkiewicz wrote: Can someone assign a CVE for this? Looks like this can be exploited to at least DoS other VMs on the same host. Usually oracle make the requests if needed. -- Agostino Sarubbo Gentoo Linux Developer

Re: [Full-disclosure] How to lock up a VirtualBox host machine with a guest using tracepath over virtio-net network interface

2013-06-26 Thread Nick Boyce
On 6/21/13, Thomas Dreibholz dre...@simula.no wrote: I have discovered a problem with the VirtualBox virtio-net network driver that leads to a lockup of the host machine's kernel and the need for a hard reset to make it working again. The bug had been reported to the VirtualBox bug tracker 8

[Full-disclosure] How to lock up a VirtualBox host machine with a guest using tracepath over virtio-net network interface

2013-06-21 Thread Thomas Dreibholz
Hi, I have discovered a problem with the VirtualBox virtio-net network driver that leads to a lockup of the host machine's kernel and the need for a hard reset to make it working again. The bug had been reported to the VirtualBox bug tracker 8 days ago

Re: [Full-disclosure] How to lock up a VirtualBox host machine with a guest using tracepath over virtio-net network interface

2013-06-21 Thread Valdis . Kletnieks
On Fri, 21 Jun 2013 16:33:35 +0200, Thomas Dreibholz said: - The host system is a 64-bit Linux (tested with Ubuntu 12.04 LTS and Kubuntu What does 'uname -r' on the host return? This is almost certainly a bug in either the host network stack or the VirtualBox modules (probably one of the