binfmt_elf patch [4.14, 4.19]

[Frank van der Linden <fllinden@xxxxxxxxxx>]

Hi,

Please include the following patch in 4.14 and 4.19, where it applies
cleanly and has been tested by us.

commit bbdc6076d2e5d07db44e74c11b01a3e27ab90b32 upstream

("binfmt_elf: move brk out of mmap when doing direct loader exec")

Thanks,

- Frank