/etc/apparmor.d/abstractions/nvidia is in apparmor 2.12-4ubuntu5.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 | # vim:syntax=apparmor
# nvidia access requirements
  
  # configuration queries
  capability ipc_lock,
  # libvdpau config file for nvidia workarounds
  /etc/vdpau_wrapper.cfg r,
  # device files
  /dev/nvidiactl rw,
  /dev/nvidia-modeset rw,
  /dev/nvidia[0-9]* rw,
  @{PROC}/interrupts r,
  @{PROC}/sys/vm/max_map_count r,
  @{PROC}/driver/nvidia/params r,
  @{PROC}/modules r,
  owner @{HOME}/.nv/GLCache/ r,
  owner @{HOME}/.nv/GLCache/** rwk,
  unix (send, receive) type=dgram peer=(addr="@nvidia[0-9a-f]*"),
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