linux-azure: Linux kernel for Microsoft Azure Cloud systems - linux-azure-5.4: Linux kernel for Microsoft Azure cloud systems Details: USN-5091-1 fixed vulnerabilities in Linux 5.4-based kernels. Unfortunately, for Linux kernels intended for use within Microsoft Azure environments, that update introduced a regression that could cause the kernel to fail to boot in large Azure instance types. This update fixes the problem. We apologize for the inconvenience. Original advisory USN-5091-1 introduced a regression in the Linux kernel for Microsoft Azure cloud systems.