tree c4e0165c20f9367545ec7eba2707c56df5d81d98
parent 28f46656ad18534f4488590b5447ec48b954420d
author Alexey Dobriyan <adobriyan@gmail.com> 1580451430 -0800
committer Linus Torvalds <torvalds@linux-foundation.org> 1580495441 -0800

fs/binfmt_elf.c: coredump: allow process with empty address space to coredump

Unmapping whole address space at once with

	munmap(0, (1ULL<<47) - 4096)

or equivalent will create empty coredump.

It is silly way to exit, however registers content may still be useful.

The right to coredump is fundamental right of a process!

Link: http://lkml.kernel.org/r/20191222150137.GA1277@avx2
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>