Hi Lucas, thanks for the assistance.

Here's the .debdiff without the ~ppa2 suffix. I opted to go with ubuntu2
because it's not really a security fix, so I wasn't sure if it's really
appropriate to add the security .1 suffix.

The .debdiff is valid for both lunar and mantic, as mantic is still
using the same version as lunar (see
https://git.launchpad.net/ubuntu/+source/busybox/tree/debian/changelog?h=ubuntu/mantic),
and still has the same series.

Our customer doesn't need jammy, so we don't need to go through the SRU
process for this - just getting it into the latest development release
is fine.

** Patch added: "busybox-1.35.0-4ubuntu2.debdiff"
   
https://bugs.launchpad.net/ubuntu/+source/busybox/+bug/2022927/+attachment/5680138/+files/busybox-1.35.0-4ubuntu2.debdiff

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https://bugs.launchpad.net/bugs/2022927

Title:
  Busybox mount fails to mount Snaps

Status in busybox package in Ubuntu:
  New

Bug description:
  Snapd tries to mount squashfs Snaps with non-standard mount flags like
  "x-gdu.hide" and "x-gvfs-hide", both of which are used to indicate to
  userspace programs that a given mount should not be shown in a list of
  mounted partitions/filesystems. Busybox does not support these flags,
  and so fails with "Invalid argument".

  $ sudo busybox mount -t tmpfs -o x-gdu-hide test /tmp/test
  mount: mounting test on /tmp/test failed: Invalid argument

  These flags can likely be be safely ignored, as they don't actually
  affect the functionality of the mount. This goes for all mount options
  starting with "x-", as these generally denote non-standard mount
  option "extensions".

  I've created a patch against Busybox which adds an optional
  configuration item to ignore all mount options beginning with "x-". An
  additional verbose option has also been added to enable the ability to
  report that the mount flags have been ignored, rather than silently
  ignoring them.

  This is a requirement for a customer project, where we are limited to
  using Busybox (due to coreutils' GPL-3.0 licence) but would also
  require using Snaps like checkbox for testing and verification. This
  was posted on the Busybox mailing list a few months ago
  (http://lists.busybox.net/pipermail/busybox/2023-March/090202.html)
  but patch acceptance there seems to take quite a long time, and we
  need this for the customer.

  A PPA containing the patched Busybox version is available on the
  project's Launchpad team: https://launchpad.net/~nemos-
  team/+archive/ubuntu/ppa

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