Comment 12 for bug 1789131

This is probably the fix:
22be37acce25 ext4: fix bitmap position validation

I built a test kernel with commit 22be37acce25. The test kernel can be downloaded from:
http://kernel.ubuntu.com/~jsalisbury/lp1789131

Can you test this kernel and see if it resolves this bug?

Note about installing test kernels:
• If the test kernel is prior to 4.15(Bionic) you need to install the linux-image and linux-image-extra .deb packages.
• If the test kernel is 4.15(Bionic) or newer, you need to install the linux-modules, linux-modules-extra and linux-image-unsigned .deb packages.

Thanks in advance!