Какова ситуация для хост-системы, если внутри контейнера Docker происходит сбой ядра, вызывающий kernel panic?

If a kernel panic occurs inside a Docker container, it means a critical error has occurred at the kernel level of the container's operating system. However, Docker uses the host system's kernel, and containers are isolated processes, not full virtual machines.

Therefore, a kernel failure inside a container actually indicates a failure of the host system's kernel, since there is only one kernel for all. In reality, a kernel panic inside a container is impossible without a kernel panic on the host.

If an application inside the container causes an error, it does not lead to a kernel panic of the host. The container will simply terminate with an error, and the host system will continue to operate.

In conclusion: a kernel panic inside a container is a kernel panic of the host system, and the consequences will be critical for the entire machine.