linux-signed-image-4.13.0-21-generic warning messages: checksum areas are greater than image size and file-aligned section .text extends beyond end of file

[Abraham]

The new kernel update 4.13.0-21-generic while installing the linux-signed-image-4.13.0-21-generic produced below warning messages:

warning: file-aligned section .text extends beyond end of file
warning: checksum areas are greater than image size. Invalid section table?
Generating grub configuration file ...

With the previous linux-signed-image-4.13.0-19-generic, there was no such warnings observed. Reporting as it looks suspicious. This is on a HP 15-BS576TX laptop.

:~$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 17.10
Release: 17.10
Codename: artful

ProblemType: Bug
DistroRelease: Ubuntu 17.10
Package: linux-signed-image-4.13.0-21-generic 4.13.0-21.24
ProcVersionSignature: Ubuntu 4.13.0-21.24-generic 4.13.13
Uname: Linux 4.13.0-21-generic x86_64
ApportVersion: 2.20.7-0ubuntu3.6
Architecture: amd64
Date: Fri Dec 22 10:50:54 2017
InstallationDate: Installed on 2017-11-22 (29 days ago)
InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Release amd64 (20171018)
SourcePackage: linux-signed
UpgradeStatus: No upgrade log present (probably fresh install)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Timppa (timppa-4)]

Not sure if this is the right place for bionic, but there too...

Setting up linux-headers-generic (4.15.0.13.14) ...
Setting up linux-signed-image-4.15.0-13-generic (4.15.0-13.14) ...
warning: file-aligned section .text extends beyond end of file
warning: checksum areas are greater than image size. Invalid section table?

Distributor ID: Ubuntu
Description: Ubuntu Bionic Beaver (development branch)
Release: 18.04
Codename: bionic