The Ubuntu kernel updates published on December 2nd introduced a regression in Linux kernel’s software RAID10 driver, which, when used with fstrim, could lead to data corruption. The bug was also reported by users on Ubuntu’s Launchpad. Therefore, Canonical released today a new set of kernels for Ubuntu 20.10, Ubuntu 20.04 LTS, Ubuntu 18.04 LTS, and Ubuntu 16.04 LTS systems on all supported architectures to address the said regression. Users are now urged to update their installations to the new Linux kernel version available in the stable software repositories.