FATAL:credentials.cc(127) Check failed: . : Permission denied (13) Trace/breakpoint trap (core dumped)

Question

My OS specifications are given below:

pegasus@pegasus:~$ uname -r
5.19.0-1007-nvidia-lowlatency
pegasus@pegasus:~$ uname -a
Linux pegasus 5.19.0-1007-nvidia-lowlatency #7-Ubuntu SMP PREEMPT_DYNAMIC Wed Jan 25 00:08:13 UTC 2023 x86_64 x86_64 x86_64 GNU/Linux

I'd downloaded microsoft-edge-stable[version].deb file using firefox. and installed it using dpkg -i. But the app doesn't run using GUI. When I type microsoft-edge-stable in terminal it gives the following error:

pegasus@pegasus:~/Downloads$ microsoft-edge-stable 
[7399:7399:0503/210255.608214:FATAL:credentials.cc(127)] Check failed: . : Permission denied (13)
Trace/breakpoint trap (core dumped)

How to get rid of this error and run microsoft edge normally. Again when I use microsoft-edge-stable --no-sandbox It runs properly

Answer 1

It seems to be a new nvidia kernel that gets installed with the (newest?) GPU's nvidia propietary driver, see this other similar case.

Changed the kernel on boot up to the non-nvidia-kernel, and now Vscode opens normally without having to pass the --no-sandbox parameter.

Edge and Vscode both use Chromium under the hood, so any chromium powered app is probably having this issue

Answer 2

One other thing to watch out for is apparmor. Check your dmesg log for something like:

[  283.250675] audit: type=1400 audit(1702938463.134:129): apparmor="DENIED" operation="userns_create" class="namespace" info="User namespace creation restricted" error=-13 profile="unconfined" pid=4483 comm="your-app" requested="userns_create" denied="userns_create"

If that's the case, try:

sudo sysctl -w kernel.apparmor_restrict_unprivileged_userns=0

It took me a while to figure this one out, as most answers keep referring to the nvidia modules problems, while this was not the case in my situation.

ref: https://github.com/flatpak/flatpak/issues/5462

To make it persist after reboot, add a line to /etc/sysctl.conf