Here is the outcome of attacker working in the browser process:
[Parent 2654, IPC I/O Parent] WARNING: process 3853 exited on signal 9: file /root/.local/share/bsys6/work/librewolf-139.0.4-1/ipc/chromium/src/chrome/common/process_watcher_posix_sigchld.cc:132
Successfully running a Unix command to terminate right now.
Because of the resource exhaustion I never saw this entry when using Xorg, I had to focus on a restart.
After closing the browser the terminal would not return to a prompt, closing in the terminal with 'CTRL-C':
^CExiting due to channel error.
Exiting due to channel error.
Exiting due to channel error.
Exiting due to channel error.
Exiting due to channel error.
With Xorg, this is the point where the Denial of Service due to Resource Exhaustion would occur and my entire computer would be unusable for a considerable time. Often a force off button is required.
With Xlibre, the system, though experiencing a serious issue, remains usable. I only have to deal with the problematic browser instead of rebooting the entire system.
Currently, I don't have Auditd running nor do I have the firewall setup yet, so I don't know what they were touching.
The entire session, in case you are interested:
[tsedek1]:~/Downloads% ./LibreWolf-139.0.4-1.x86_64.AppImage -Profile /tmp/librewolf
Crash Annotation GraphicsCriticalError: |[0][GFX1-]: GFX: CanvasTranslator failed creating WebGL shared context (t=175.813) [GFX1-]: GFX: CanvasTranslator failed creating WebGL shared context
Crash Annotation GraphicsCriticalError: |[0][GFX1-]: GFX: CanvasTranslator failed creating WebGL shared context (t=175.813) |[1][GFX1-]: GFX: CanvasTranslator failed creating WebGL shared context (t=829.841) [GFX1-]: GFX: CanvasTranslator failed creating WebGL shared context
Crash Annotation GraphicsCriticalError: |[0][GFX1-]: GFX: CanvasTranslator failed creating WebGL shared context (t=175.813) |[1][GFX1-]: GFX: CanvasTranslator failed creating WebGL shared context (t=829.841) |[2][GFX1-]: GFX: CanvasTranslator failed creating WebGL shared context (t=2491.96) [GFX1-]: GFX: CanvasTranslator failed creating WebGL shared context
Crash Annotation GraphicsCriticalError: |[0][GFX1-]: GFX: CanvasTranslator failed creating WebGL shared context (t=175.813) |[1][GFX1-]: GFX: CanvasTranslator failed creating WebGL shared context (t=829.841) |[2][GFX1-]: GFX: CanvasTranslator failed creating WebGL shared context (t=2491.96) |[3][GFX1-]: GFX: CanvasTranslator failed creating WebGL shared context (t=2937.23) [GFX1-]: GFX: CanvasTranslator failed creating WebGL shared context
Crash Annotation GraphicsCriticalError: |[0][GFX1-]: GFX: CanvasTranslator failed creating WebGL shared context (t=175.813) |[1][GFX1-]: GFX: CanvasTranslator failed creating WebGL shared context (t=829.841) |[2][GFX1-]: GFX: CanvasTranslator failed creating WebGL shared context (t=2491.96) |[3][GFX1-]: GFX: CanvasTranslator failed creating WebGL shared context (t=2937.23) |[4][GFX1-]: GFX: CanvasTranslator failed creating WebGL shared context (t=3394.17) [GFX1-]: GFX: CanvasTranslator failed creating WebGL shared context
Crash Annotation GraphicsCriticalError: |[0][GFX1-]: GFX: CanvasTranslator failed creating WebGL shared context (t=175.813) |[1][GFX1-]: GFX: CanvasTranslator failed creating WebGL shared context (t=829.841) |[2][GFX1-]: GFX: CanvasTranslator failed creating WebGL shared context (t=2491.96) |[3][GFX1-]: GFX: CanvasTranslator failed creating WebGL shared context (t=2937.23) |[4][GFX1-]: GFX: CanvasTranslator failed creating WebGL shared context (t=3394.17) |[5][GFX1-]: GFX: CanvasTranslator failed creating WebGL shared context (t=4061.63) [GFX1-]: GFX: CanvasTranslator failed creating WebGL shared context
Crash Annotation GraphicsCriticalError: |[0][GFX1-]: GFX: CanvasTranslator failed creating WebGL shared context (t=175.813) |[1][GFX1-]: GFX: CanvasTranslator failed creating WebGL shared context (t=829.841) |[2][GFX1-]: GFX: CanvasTranslator failed creating WebGL shared context (t=2491.96) |[3][GFX1-]: GFX: CanvasTranslator failed creating WebGL shared context (t=2937.23) |[4][GFX1-]: GFX: CanvasTranslator failed creating WebGL shared context (t=3394.17) |[5][GFX1-]: GFX: CanvasTranslator failed creating WebGL shared context (t=4061.63) |[6][GFX1-]: RenderCompositorSWGL failed mapping default framebuffer, no dt (t=5150.9) [GFX1-]: RenderCompositorSWGL failed mapping default framebuffer, no dt
Crash Annotation GraphicsCriticalError: |[0][GFX1-]: GFX: CanvasTranslator failed creating WebGL shared context (t=175.813) |[1][GFX1-]: GFX: CanvasTranslator failed creating WebGL shared context (t=829.841) |[2][GFX1-]: GFX: CanvasTranslator failed creating WebGL shared context (t=2491.96) |[3][GFX1-]: GFX: CanvasTranslator failed creating WebGL shared context (t=2937.23) |[4][GFX1-]: GFX: CanvasTranslator failed creating WebGL shared context (t=3394.17) |[5][GFX1-]: GFX: CanvasTranslator failed creating WebGL shared context (t=4061.63) |[6][GFX1-]: RenderCompositorSWGL failed mapping default framebuffer, no dt (t=5150.9) |[7][GFX1-]: GFX: CanvasTranslator failed creating WebGL shared context (t=5181.17) [GFX1-]: GFX: CanvasTranslator failed creating WebGL shared context
Crash Annotation GraphicsCriticalError: |[0][GFX1-]: GFX: CanvasTranslator failed creating WebGL shared context (t=175.813) |[1][GFX1-]: GFX: CanvasTranslator failed creating WebGL shared context (t=829.841) |[2][GFX1-]: GFX: CanvasTranslator failed creating WebGL shared context (t=2491.96) |[3][GFX1-]: GFX: CanvasTranslator failed creating WebGL shared context (t=2937.23) |[4][GFX1-]: GFX: CanvasTranslator failed creating WebGL shared context (t=3394.17) |[5][GFX1-]: GFX: CanvasTranslator failed creating WebGL shared context (t=4061.63) |[6][GFX1-]: RenderCompositorSWGL failed mapping default framebuffer, no dt (t=5150.9) |[7][GFX1-]: GFX: CanvasTranslator failed creating WebGL shared context (t=5181.17) |[8][GFX1-]: GFX: CanvasTranslator failed creating WebGL shared context (t=5657.69) [GFX1-]: GFX: CanvasTranslator failed creating WebGL shared context
Crash Annotation GraphicsCriticalError: |[0][GFX1-]: GFX: CanvasTranslator failed creating WebGL shared context (t=175.813) |[1][GFX1-]: GFX: CanvasTranslator failed creating WebGL shared context (t=829.841) |[2][GFX1-]: GFX: CanvasTranslator failed creating WebGL shared context (t=2491.96) |[3][GFX1-]: GFX: CanvasTranslator failed creating WebGL shared context (t=2937.23) |[4][GFX1-]: GFX: CanvasTranslator failed creating WebGL shared context (t=3394.17) |[5][GFX1-]: GFX: CanvasTranslator failed creating WebGL shared context (t=4061.63) |[6][GFX1-]: RenderCompositorSWGL failed mapping default framebuffer, no dt (t=5150.9) |[7][GFX1-]: GFX: CanvasTranslator failed creating WebGL shared context (t=5181.17) |[8][GFX1-]: GFX: CanvasTranslator failed creating WebGL shared context (t=5657.69) |[9][GFX1-]: GFX: CanvasTranslator failed creating WebGL shared context (t=5904.41) [GFX1-]: GFX: CanvasTranslator failed creating WebGL shared context
[Parent 2654, IPC I/O Parent] WARNING: process 3853 exited on signal 9: file /root/.local/share/bsys6/work/librewolf-139.0.4-1/ipc/chromium/src/chrome/common/process_watcher_posix_sigchld.cc:132
^CExiting due to channel error.
Exiting due to channel error.
Exiting due to channel error.
Exiting due to channel error.
Exiting due to channel error.