v4l2loopback-dkms compilation fails on apt-get upgrade in Ubuntu 22.04

[michaelfsp]

michael@kolmogorov:~/git/pycbm$ sudo apt install --reinstall v4l2loopback-dkms
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
0 upgraded, 0 newly installed, 1 reinstalled, 0 to remove and 0 not upgraded.
Need to get 29.5 kB of archives.
After this operation, 0 B of additional disk space will be used.
Get:1 http://archive.ubuntu.com/ubuntu jammy-updates/universe amd64 v4l2loopback-dkms all 0.12.7-2ubuntu2~22.04.1 [29.5 kB]
Fetched 29.5 kB in 0s (133 kB/s)
(Reading database ... 876311 files and directories currently installed.)
Preparing to unpack .../v4l2loopback-dkms_0.12.7-2ubuntu2~22.04.1_all.deb ...
Unpacking v4l2loopback-dkms (0.12.7-2ubuntu2~22.04.1) over (0.12.7-2ubuntu2~22.04.1) ...
Setting up v4l2loopback-dkms (0.12.7-2ubuntu2~22.04.1) ...
Loading new v4l2loopback-0.12.7 DKMS files...
Building for 6.5.0-35-generic 6.8.0-40-generic
Building initial module for 6.5.0-35-generic
Done.

v4l2loopback.ko:
Running module version sanity check.
 - Original module
 - Installation
   - Installing to /lib/modules/6.5.0-35-generic/updates/dkms/

depmod....
Building initial module for 6.8.0-40-generic
ERROR: Cannot create report: [Errno 17] File exists: '/var/crash/v4l2loopback-dkms.0.crash'
Error! Bad return status for module build on kernel: 6.8.0-40-generic (x86_64)
Consult /var/lib/dkms/v4l2loopback/0.12.7/build/make.log for more information.
dpkg: error processing package v4l2loopback-dkms (--configure):
 installed v4l2loopback-dkms package post-installation script subprocess returned error exit status 10
Errors were encountered while processing:
 v4l2loopback-dkms
E: Sub-process /usr/bin/dpkg returned an error code (1)
100 michael@kolmogorov:~/git/pycbm$ bat /var/lib/dkms/v4l2loopback/0.12.7/build/make.log
───────┬─────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── │ File: /var/lib/dkms/v4l2loopback/0.12.7/build/make.log
───────┼─────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── 1 │ DKMS make.log for v4l2loopback-0.12.7 for kernel 6.8.0-40-generic (x86_64)
   2 │ Wed 04 Sep 2024 17:28:42 WEST
   3 │ Building v4l2-loopback driver...
   4 │ make -C /lib/modules/6.8.0-40-generic/build M=/var/lib/dkms/v4l2loopback/0.12.7/build modules CC=x86_64-linux-gnu-gcc-12
   5 │ make[1]: Entering directory '/usr/src/linux-headers-6.8.0-40-generic'
   6 │ CC [M] /var/lib/dkms/v4l2loopback/0.12.7/build/v4l2loopback.o
   7 │ /var/lib/dkms/v4l2loopback/0.12.7/build/v4l2loopback.c: In function ‘vidioc_querycap’:
   8 │ /var/lib/dkms/v4l2loopback/0.12.7/build/v4l2loopback.c:727:9: error: implicit declaration of function ‘strlcpy’; did you mean ‘strscpy’? [-Werror=implicit-function-declaration]
   9 │ 727 | strlcpy(cap->driver, "v4l2 loopback", sizeof(cap->driver));
  10 │ | ^~~~~~~
  11 │ | strscpy
  12 │ cc1: some warnings being treated as errors
  13 │ make[3]: *** [scripts/Makefile.build:243: /var/lib/dkms/v4l2loopback/0.12.7/build/v4l2loopback.o] Error 1
  14 │ make[2]: *** [/usr/src/linux-headers-6.8.0-40-generic/Makefile:1926: /var/lib/dkms/v4l2loopback/0.12.7/build] Error 2
  15 │ make[1]: *** [Makefile:240: __sub-make] Error 2
  16 │ make[1]: Leaving directory '/usr/src/linux-headers-6.8.0-40-generic'
  17 │ make: *** [Makefile:43: v4l2loopback.ko] Error 2
───────┴───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────

ProblemType: Bug
DistroRelease: Ubuntu 22.04
Package: v4l2loopback-dkms 0.12.7-2ubuntu2~22.04.1
ProcVersionSignature: Ubuntu 6.5.0-35.35~22.04.1-generic 6.5.13
Uname: Linux 6.5.0-35-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia zfs
ApportVersion: 2.20.11-0ubuntu82.6
Architecture: amd64
CasperMD5CheckResult: unknown
Date: Wed Sep 4 17:38:36 2024
InstallationDate: Installed on 2017-07-26 (2596 days ago)
InstallationMedia: Ubuntu 16.04.2 LTS "Xenial Xerus" - Release amd64 (20170215.2)
PackageArchitecture: all
RebootRequiredPkgs: Error: path contained symlinks.
SourcePackage: v4l2loopback
UpgradeStatus: Upgraded to jammy on 2024-03-17 (171 days ago)