Tor Browser Crash (Whonix)

[janglingquo_575]

Anybody recently experiencing a Tor Browser on Whonix crashing the entire Xen hypervisor when using the sys-gui VM?

This might be related to graphics driver libraries like Mesa3D llvmpipe
https://docs.mesa3d.org/drivers/llvmpipe.html

it might also be a browser issue and could be linked to the desktop screen resolution

[fsflover]

This question is about Whonix, so you could probably ask it on Whonix forums. However, whole hypervisor crashing sounds scary. Reminds me of this:

QSB-097: "Reptar" Intel redundant prefix vulnerability

We have published Qubes Security Bulletin 097: “Reptar” Intel redundant prefix vulnerability. The text of this QSB and its accompanying cryptographic signatures are reproduced below. For an explanation of this announcement and instructions for authenticating this QSB, please see the end of this announcement. Qubes Security Bulletin 097 ---===[ Qubes Security Bulletin 097 ]===--- 2023-11-14 "Reptar" Intel redundant prefix vulnerability …

AFAIK Whonix VM doesn’t use any GPU acceleration on Qubes, so I would expect that the graphics driver is not relevant.

[janglingquo_575]

This is most likely a CPU level vuln. There are some unmitigated vulns that were returned by the “spectre-meltdown-checker” tool when run in whonix-ws/gw. Please see the logs posted here:

http://forums.dds6qkxpwdeubwucdiaord2xgbbeyds25rbsgr73tbfpqpt4a6vjwsyd.onion/t/spectre-meltdown-checker-output-whonix-ws-and-whonix-gw/17721