Description:
References:
 https://gist.github.com/oxagast/472866fb2c3d439e10499d7141d0a520
Notes:
 carnil> Unclear status on the issue (e.g. if upstream is aware)
 bwh> Introduced in 3.16 by commit 5cc9ed4b9a7a "drm/i915: Introduce
 bwh> mapping of user pages into video memory (userptr) ioctl".
Bugs:
upstream: released (4.18-rc1) [c11c7bfd213495784b22ef82a69b6489f8d0092f]
4.19-upstream-stable: N/A "Fixed before branch point"
4.9-upstream-stable: released (4.9.126) [f916daa615e1c0d67fb3b7a65572fbc56c6aaea6]
3.16-upstream-stable: ignored "EOL"
sid: released (4.18.6-1)
4.19-buster-security: N/A "Fixed before branch point"
4.9-stretch-security: released (4.9.130-1)
3.16-jessie-security: ignored "EOL"