Re: [PATCH v4 0/5] kexec_file: Add buffer hand-over for the next kernel

[Eric W. Biederman]

Thiago Jung Bauermann <bauerman@xxxxxxxxxxxxxxxxxx> writes:

> Hello,
>
> The purpose of this new version of the series is to fix a small issue that
> I found, which is that the kernel doesn't remove the memory reservation
> for the hand-over buffer it received from the previous kernel in the
> device tree it sets up for the next kernel. The result is that for each
> successive kexec, a stale hand-over buffer is left behind, wasting memory.
>
> This is fixed by changes to kexec_free_handover_buffer and
> setup_handover_buffer in patch 2. The other change is to fix checkpatch
> warnings in the last patch.

This is fundamentally broken.  You do not increase the integrity of a
system by dropping integrity checks.

No. No. No. No.

Nacked-by: "Eric W. Biederman" <ebiederm@xxxxxxxxxxxx>

Eric