Bug#1012298: linux-image-5.17.0-1-amd64: New partition doesn't appear in /dev anymore with kernel 5.17 (repro script included)

[Michael Schaller <misch@google.com>]

I've tested some vanilla stable kernels (without Debian patches) and
can confirm that 5.17.0 and 5.18.1 (latest) are affected. Kernel
5.16.18 isn't affected.

I then did a git bisect as outlined in
https://wiki.debian.org/DebianKernel/GitBisect and that pointed
towards this commit as the first bad commit:
https://github.com/torvalds/linux/commit/1ebe2e5f9d68e94c524aba876f27b945669a7879