Kernel's bug?

Hello,

When I logged out, a message was displayed regarding to kernel’s bugging. I am using Debian 9. I tried to upload a JPG file, its size is 3.5 MB, which is below the maximum size (15.5 MB). However, it was not allowed. Thank you very much.

I resized the JPG file, and uploaded again. Hope it works.

Same problem here with kernel 4.9 debian, it seems that kernel 5.3.2 solves this bug.
I’have installed precompiled packages from Astronos2007, https://forums.comodo.com/comodo-antivirus-for-linux-cavl/filesystem-filter-driver-for-kernel-35318redirfs-and-avflt-t94441.0.html;msg892439#msg892439 , and drivers from charlie_xstar, https://forums.comodo.com/comodo-antivirus-for-linux-cavl/filesystem-filter-driver-for-kernel-35318redirfs-and-avflt-t94441.0.html;msg891578#msg891578.
In the last 2 days Comodo works with no problem and I get no error messages.